Are there any problems with my 2003 Duramax?

Thaks for the help. injectors,water pump,headgaskets,injectors again,instrument cluster,steering shaft,pinion seal,and injectors again. I have on 03 with 66,000 on it and know problems. Friend of mine has 03 asmost same truck and know problems with 145,000 on it. Sure love mine. P:S Injectors should be warrantied to 200,000.

How to fix 2003 Duramax Diesel loosing Prime?

2003 Duramax Diesel loosing prime and will not start until I lift the hood and pump the prime plunger on the fuel filter housing. Clicking this will make more experts see the question and we will remind you when it gets answered. You can’t post conmments that contain an email address.

What kind of pump does a 2003 Duramax use?

You can’t post conmments that contain an email address. 2003 duramax, when clod it will start drive for 30min to hour and shut it off will not start untill it cooled off for about 2-3 hours at the shop they replaced the fule pump with 2006 modle for $150,the pump for the 2003 was $650 is this right,is this the same pump??

Is the Duramax 8.1 diesel engine a gas engine?

Well, one problem is, if its an 8.1, its not a diesel. The 8.1, or Vortec 8100, is a gas engine. The DuraMax is a 6.6 engine. There is usually not a priming system on a gas engine, because the fuel pumps will usually get it through the smaller filters used quick enough you dont need them.

What to do about a Duramax 6.6 LB7 engine?

If you are having a problem with your 2001-2004 Duramax 6.6 LB7 diesel engine, please feel free to give us a call. We carry a full line of repair and performance parts for these engines that we install in our shop on a regular basis. Odds are we have run across your problem before and would be glad to help. Call us at 1-877-367-9351.

What kind of engine does a 2000 Chevy Silverado have?

Thanks a lot, and I forgot to tell you it’s a 2000 model Chevrolet Silverado 1500 with the 5.3-liter V8. Trust me, there’s never too much information in a reader’s question, unless there’s 12 questions in a reader’s question. Note: a U.S. built 2000 model year truck uses R134a refrigerant, not Freon (R12). OK, you’re on the right track.

Why is my a / C not working on my Chevy Silverado?

If it didn’t work or stayed on all the time then there is a problem. Subject: Air Conditioning (A/C) Blows Warm Air Intermittently. This condition may be caused by the A/C compressor clutch cycling out early when the low pressure side reaches approximately 380 kPa (55 psi).

When to submit a repair order for a 2003 Duramax?

Claims with repair orders prior to May 25, 2004 must be submitted to the Service Contract provider. For 2003 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after October 10, 2006 are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin.

Are there balance rates on a Duramax Diesel?

If you’re big into diesel engines, especially the Duramax diesel engines, like we are, you have probably heard of balance rates. You are likely even familiar with checking them so that you can determine the health of the injectors in your Duramax.

Are there any problems with the LLY Duramax?

In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring.

How many versions of the Duramax diesel engine are there?

All told, there are six different iterations of the Duramax diesel engine: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. Each version of the engine has its own issues and quirks, and some are less problematic than others.

What kind of engine does a 2003 yeaer have?

If it has the Duramax, the only auto available was the Allison. If it has a 6 liter, then the only auto available was the 4L80. THIS BULLETIN IS BEING REVISED TO ADD 2003 MODEL YEAER TRUCKS. PLEASE DISCARD SPECIAL POLICY BULLETIN NUMBER 04039, DATED MAY, 2004.

How long can a Duramax go out of service?

This special policy covers the condition described above for a period of 7 years or 200,000 miles (320,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. The repairs will be made at no charge to the customer.

What is the first year of the Duramax?

The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.

When did the Duramax LB7 diesel come out?

Duramax LB7 Specs & Info. The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel.

Who is the owner of the 2003 GMC 2500HD?

This 2003 GMC 2500HD Built By Katie P. has been featured in many of the popular publications in the diesel industry such as Diesel Tech Magazine, Diesel Power Magazine and Diesel World. Katie’s Duramax features classy, clean styling and the performance to match.

What happens when a Duramax engine goes down?

Not only does this mean game-over for the engine, but it results in a truck that’s down for weeks (if not months) and a huge chunk of change missing from your wallet. The failure is most common in higher horsepower engines, but can still occur in moderately modified and even stock power plants.

What are the problems with the Duramax LB7?

One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat.

What kind of engine is a Duramax 6.6 liter?

The LB7 Duramax engine is a 6.6-liter engine produced by DMAX, a joint venture between General Motors and Isuzu. The LB7 is part of General Motors’ Duramax V8 engine line.

When did the Duramax LB7 engine come out?

The LB7 Duramax is a 32-valve V8 diesel engine produced from 2001-2004. These are some common tools used to work on this device. You might not need every tool for every procedure.

What’s the price of a 2003 Chevy Duramax?

2003 Chevrolet C2500 Turbo Diesel Extended Cab,$6800 Duramax, Allison Offering a 2003 Chevrolet C2500 Turbo Diesel Extended Cab, 8 foot bed, Duramax, Allison A/C blows cool.

What kind of engine does a 2003 Chevy 2500HD have?

So I currently have a 2003 Chevrolet 2500HD Crew Cab 6.0L Vortec with 111,000 miles that I’am considering trading in for a 2003 Chevrolet 2500HD Extended cab 6.6L Duramax with 113,000 miles. I believe these to be a pretty solid engine and tranny combo but wondering if there is anything I should look out for when driving it, common issues, etc?

What kind of engine does a Chevy Duramax have?

The engine and drivetrain was from 2005 silverado Duramax turbo diesel 2500hd truck The Suburban has about 120000 miles on it but the engine and transmission had 90000 on them when the conversion was done. The suburban is fully loaded with heated leather seats, power windows, power door locks, Captains chairs in both front and second row.

When do I need to repair my 2003 Duramax?

For 2003 vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after October 10, 2006 are covered by this special policy and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to October 10, 2006 must be submitted to the Service Contract provider.

What are the most common 6.6L LB7 Duramax problems?

What Are The Most Common 6.6L LB7 Duramax Problems? The LB7 Duramax engine made its debut on Chevrolet and GMC HD trucks in 2001. These diesel engines are where the Duramax started, and they have been so successful that the Duramax are still used in GM HD trucks today.

What causes the crankshaft on a Duramax to crack?

Or how about the fact that the rods in the LB7 and LLY engines can bend with added power and the LBZ and LMM mills are notorious for cracking pistons? Discover the worst failure point (s) of your Duramax in the article that follows, along with how to address it. 1. Snapped Crankshaft

When did the first Duramax V8 engine come out?

Duramax Engine LB7 2001 to 2004 The first Duramax V8 was introduced in 2001 and was given the code name LB7. The introduction of common rail injection powered by the Bosch CP3 injection pump made the LB7 Duramax stand apart from other diesels of the day with excellent power and efficiency.

What was the code name for the Duramax in 2011?

In an effort to keep up with the ever-tightening emission regulations, GM redesigned its Duramax for the 2011 model year, and this time the code name was LML.

Is there a recall on the Chevy 2500HD?

Chevrolet recalled the instrument cluster about a year ago. Had mine replaced ~3 years ago out-of-pocket (2004 2500HD Duramax) and Chevy reimbursed me after sending them my receipts. take it to dealer and ask about recall. they should replace at no cost…if the problem is actually the cluster.

Can a 6.6L Duramax crank no start?

Hi I could really use a tip if you could help. I am working on a 2006 6.6 duramax and can’t get it to run. Drove ina couple months ago but ran very poor like a missfire. then stopped running completly. Will start on starting fluid but then stalls when runs out of starting fluid.

Why is the message center not working on my 2003 Silverado?

An expert who has achieved level 1. An expert that has 1 follower. I have a 2003 silverado 2500hd and sometimes when I start the truck the message center won’t come on but if drive it about five miles and shut the truck off and start it again it will come on You can’t post conmments that contain an email address.

Where was the 2003 Chevy Silverado 2500HD last serviced?

Last serviced in Spokane Valley, WA on 05/04/21 • Vehicle serviced • Oil and filter changed. No accident or damage reported to CARFAX. 1st owner purchased on 07/31/03 and owned in MO until 08/06/09 • 2nd owner purchased on 09/14/09 and owned in MI until 05/26/16 • 3rd owner purchased on 05/26/16 and owned in MI until .

What kind of truck is a 2003 Chevy Silverado?

2003 Silverado 6.6 Duramax 411282 km Under 100,000km in last 10 yrs Company truck. Light trailer pulling. 8 ft box ext cab Tow package- trailer brake. Truck has some rust but mechanically solid.

When did the Chevy Silverado 2500HD come out?

1st owner purchased on 08/23/03 and owned in CA until 11/12/19 • 2nd owner purchased on 11/12/19 and owned in WA until 05/14/21. 1st owner drove an estimated 11,166 miles/year • 2nd owner drove an estimated 0 miles/year.

What’s the difference between 3500HD and 2500HD trucks?

For more torque when you need it, 3500HD models have an increased ring gear size of up to 12 inches. This allows all torque to be put to the ground in first gear. For more torque when you need it, 3500HD models have an increased ring gear size of up to 12 inches. This allows all torque to be put to the ground in first gear.

2003 Silverado 6.6 Duramax 411282 km Under 100,000km in last 10 yrs Company truck. Light trailer pulling. 8 ft box ext cab Tow package- trailer brake. Truck has some rust but mechanically solid.

What kind of engine does Silverado 2500HD have?

Plus, the available Duramax ® 6.6L Turbo-Diesel V8 generates 445 horsepower and 910 lb.-ft. of torque. An available Autotrac ® 2-speed transfer case offers four drive modes: 2 High, 4 High, 4 Low and a segment- exclusive † (22) 4 Auto mode that automatically adjusts power sent to the front and rear axles for improved traction.

What to do if your Duramax cooler goes bad?

Lastly we replace a fair amount of glow plug controllers as well. You will usually get a diagnostic trouble code for the cooler when they go bad. Head Gaskets – As these truck reach the 100,000-150,000 miles we are seeing more and more head gasket issues. The Duramax has a multi-layer steel head gasket.

Can a GMC Duramax diesel start in cold weather?

You will have a cold start issue if not plugged in long before any DEF issue. Now, my personal experience only goes down to -40 Fahrenheit. Below that I will need to defer to those people who live in Northern Canada or Alaska. This was a huge discussion around 2011-2012 when everyone started buying DEF trucks.

Where does coolant go in a Duramax Diesel?

If it can be determined the coolant loss is from the driver’s side (engine right side) of the engine, the following information should be considered. Leaks from the exhaust gas recirculation (EGR) cooler may allow coolant to pass through the exhaust system and enter the combustion chambers on the right bank cylinders.

Can a diesel do well in cold weather?

Overall the new diesels with their high pressure direct injection and control systems normally do very well in cold weather. Given that it will only be that cold for very brief periods of time better you get what you need and want for the whole year and understand that a few extra steps will need to be taken during extreme cold.

What should I put on my Duramax in the winter?

Put extra anti gel in the winter. Never had a problem even in -14 F unheated out side and engine block heater not plugged in. Always use Lucas Anti-Gel and Lucas Cetane Boost. Can’t speak for the DEF problem sure glad I don’t have use it.

Is the lift pump on a Duramax diesel truck?

Duramax diesel trucks do not have a lift pump. start with the simple things make sure your fuel filter is tight and check the shreader vlave on the fuel rail if that don’t help check the filter housing for a leaks arround the heater element or a crack in the housing itself You can’t post conmments that contain an email address.

Why does my 2003 Silverado HD engine get hot?

Why does my 2003 Silverado HD engine get hot when i’m backing up,even a small load on my trailer All I know about my truck is that it is a 2500 HD The engine gets hot when I’m backing up with a load, or even an empty trailer. sudden loss of power duramax 6.6 ?

What is the maintenance schedule for a Duramax?

When purchasing parts for your Duramax, be cautious with model years where an engine was phased in/out as the incoming engine may have parts that are not interchangeable with the outgoing engine. Always follow the severe duty maintenance schedule if you’re driving conditions include:

When did the LMM Duramax diesel engine come out?

The LMM Duramax refers to Chevrolet Silverado HD and GM Sierra HD trucks equipped with the 6.6L Duramax diesel engine between the years of 2007.5-2010. It was very similar to the LBZ, but it featured an all-new emissions device, a diesel particulate filter.

Are there any problems with the Duramax water pump?

This seems to be inherent of the factory water pump design. Overheating issues with the Duramax diesel seems to be a hit-or-miss problem; some owners experience it, while others never will. Regardless, it’s more common with the Duramax than other engines.

Are there any problems with the Commons 6.6L Duramax Diesel?

Common Problems with the 6.6L Duramax Diesel. The 6.6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation.

What kind of truck is a 2003 Chevy Duramax?

2003 Chevy duramax diesel, 2500 hd, lt model, crew cab 6.6 bed, great truck running like new, must sell because moved to city and no room! 225,000 miles mostly highway. 2003 Chevy 3500 Duramax 4×4 with 69,000! This is a mint condition truck set up for towing. Has no wear on the body and is clean on the inside.

What are the specs of a 2003 Chevy Silverado?

2003 Chevrolet Silverado 2500HD Specs & Performance Crew Cab 4WD Specifications and Pricing . Max Towing Capacity 3. 10,600 lbs Drivetrain. Drivetrain. 4-Wheel Drive Transmission Fuel Tank Capacity, Approx. 26 gal

How much power does a Duramax Diesel have?

Power was at an all-time high coming in at 397hp and 765 pounds of torque, and in order to provide this much power while still keeping pollutants low, GM needed to be able to increase the pressure in the fuel system to levels above what the tried-and-true CP3 could safely deliver.

Why is my Duramax diesel engine not working?

The trucks computer keeps track of how much fuel needs to be added or subtracted from each individual cylinder to make the engine run smoothly, and this value is called the balance rate. If one cylinder is contributing too much or not as much as the rest, the cause is usually a bad injector and the cure is a replacement.

What kind of engine does a Duramax truck have?

Diesel engines have come a long way from the diesels of the past. Our Duramax ® Turbo-Diesel engines are well balanced to offer a smooth and quiet ride along with enough torque to ensure responsive performance without sacrificing comfort or capability.

What kind of warranty does a Duramax have?

Duramax engines are known for their reliability, and come standard with a 5-year/60,000-mile limited warranty on 2.8L Turbo-Diesel engines, or a 5-year/100,000-mile limited warranty on 3.0L and 6.6L Turbo-Diesel engines. Diesels make a lot of torque, but they don’t seem to have the horsepower of gas engines.

Are there any issues with the Duramax check engine lights?

Glow Plug System Issues – Nearly half of the check engine lights that come in for the Duramax pickups are for glow plugs. The glow plugs burn out over time and can be a real nuisance to remove from the aluminum heads sometimes.

What causes LB7 Duramax engine to overheat?

When the fan clutch is damaged, it prevents it from operating and giving the LB7 Duramax engine the additional cooling it needs. Overheating can also be attributed to a dirty or clogged radiator. Over time, your radiator can accumulate dirt, grime, and other gunk.

When did the GMC Duramax Denali 2500 come out?

Enter your ride HERE to be a part of this months Ride of the Month Challenge! I purchased a new 2020 GMC Denali 2500 with the Duramax back around March 14, 2020. The truck that I bought had right around 300 miles on it when I bought it.

What kind of engine does a 2003 Chevy Silverado have?

Redesigned for 2003 and equipped with a standard 6.0-liter V8, the 2003 Chevy Silverado 2500HD comes available in Base, LS and LT trim levels with your choice of 4WD and a 4-speed automatic or a 5-speed manual transmission depending on the model.

Is the Chevy Silverado 2500 HD crew cab?

Strong Diesel, great 5 speed Allison. This Duramax Diesel has been a great truck. It easily towed a 30 foot fifth wheel trailer Very comfortable seats. Was this review helpful? Yes | No 2003 Chevrolet Silverado 2500 HD Crew Cab Specs & Features Based on lowest-priced style. Safety information is currently not available for this vehicle.

Is there a 2003 Chevy Silverado 4×4 for sale?

Up for sale is one clean 2003 Chevy Silverado 4×4 Duramax. This truck is an extended cab short bed sitting nicely on 315/70’s. With Dark Spiral Gray paint this LT is sharp with tinted windows, OEM flares and running boards.

When did the Duramax 6.6L V8 come out?

lb7: 2001-2004 The LB7 is the original production 6.6L Duramax V8. Following success with the performance and reliability of the LB7, this engine became the building block of the Duramax line all the way up until today.

Which is the best diesel engine for Duramax?

One of the most reliable and most power-capable Duramax’s made, the LBZ will continue to be the diesel enthusiasts Duramax of choice. The LMM is virtually the same engine as the LBZ with more emissions control. The LMM features a diesel particulate filter (DPF), an oxidation catalyst, and a more savvy EGR.

Is the Duramax 6600 a good or bad car?

: Duramax 6600 6.6L V8 Diesel Purchase a 2003 6.6L Good or Bad?? So I currently have a 2003 Chevrolet 2500HD Crew Cab 6.0L Vortec with 111,000 miles that I’am considering trading in for a 2003 Chevrolet 2500HD Extended cab 6.6L Duramax with 113,000 miles.

What are the most common LLY Duramax engine problems?

The 6 Most Common LLY Duramax Problems. 1 1. LLY Bent Rods. While the LLY made competitive performance numbers back in 2004, the engine is certainly not competitive to the modern day diesels. 2 2. Head Gasket Failure – LLY Duramax. 3 3. EGR Valve Failure. 4 4. Glow Plug Failue – 2006 LLY Duramax. 5 5. Overheating in Pre-2006 Models.

What are features of GM 6.6L Duramax LB7?

Its unique design increases spool-up, throttle response and also increases power and efficiency.Features:61MM Inducer+36HP Over Stock Supports up To 605HP Drop-In Replacement Wheel Protect your 2001-2004 GM 6.6L Duramax LB7 from unwanted surge and boost performance when you install the expertly designed Diesel Site Wicked Wheel 2 WWLB7.

What kind of compression ratio does a Duramax have?

2008-2010 GMC Sierra & Chevy Silverado HD 6.6L LMM Duramax Specs Manufactured Years: 2007.5-2010 Compression Ratio: 16.8:1 Firing Order: 1-2-7-8-4-5-6-3 Turbocharger/Air: Garrett GT3788VA Variable Vane Turbochar Fuel Injection: Direct Injection High Pressure Common Ra

Are there any issues with the Duramax primer button?

Under the primer button there are some orings that fail on a regular basis. This can produce long cranks and hard starts. Glow Plug System Issues – Nearly half of the check engine lights that come in for the Duramax pickups are for glow plugs.

Is the water pump on the LB7 Duramax leaking?

Water Pumps – Another issue with the LB7 Duramax is the water pump leaking. This one is fairly common and unfortunately a huge pain in the butt to change. Water will seep from the underside of the pump. Be prepared though because you will have to remove the dampner pulley to get the pump off.

Which is the best lift pump for a Duramax?

The FASS Titanium Signature Series Lift Pump is an excellent upgrade for any Duramax. When GM changed body styles with the 2008 Duramax, the redesign coincided with some new regulations from the EPA regarding emissions equipment on light duty trucks.

How often does the 4WD light come on on a Silverado?

Question: I have a 2005 Chevrolet Silverado and my SERVICE 4WD light comes on about once a week. When the light is on, the truck won’t engage into 4-wheel drive. When I turn my truck off and start it again, the 4-wheel drive will work until the next time the light comes on.

Why is my GMC Duramax not 4 wheel drive?

Upon restarting the truck I noticed that while starting it all the led lights on the 4wd push buttons came on never noticed that before but honestly never looked at the buttons while starting the truck.The lights then go out and the led on the 2wd stays lit. I attempted to push the 4hi button and it appears as if the truck is not going into 4wd.

Is the 4WD light on on my GMC Sierra?

Dic says service 4wd and engine light is on, 4wd not working. Same light comes on Service 4×4. Leaking trany fluid at sensor…

What’s the problem with my GMC 2500 4WD?

I have ’03 gmc 2500 4wd dmax. svc 4wd light keeps coming on, check engine lt comes on and off. trsnfr case switch 2wd/4wd/4low sometimes switches to neutral, 4wd or 4 low and still actually in 2wd. sometimes when it is shut off for a while, it will clear up. has anyone figured out what is really going wrong and what to do?

Why is my service 4WD light not working?

The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code (s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.

Are there any Duramax engines in the Chevy Silverado?

The motor, sometimes referred to as Baby Duramax, was slated to be offered in GM’s light duty pickup trucks – the Chevrolet Silverado 1500 and GMC Sierra 1500 – for the 2010 model year. However, after fully completing development of the engine, GM decided not to produce it due to reasons associated with the “economic climate”.

How many miles does a 2005 GMC Duramax have?

A 2005 GMC Goes The Distance! I magine driving your truck 400 miles today, 400 miles tomorrow, and 400 miles every single day for the next 5 years (that’s 1825 days). If you did, your Duramax would have what this truck has – more than 750,000 miles on the odometer.

Can a Duramax be used in a GMC Sierra 1500?

For instance, we can control the engine block and the engine head separately to maximize the effectiveness of the cooling system,” Barta explains.

What’s the average mileage of a durmax truck?

I have a 2011 GMC 2500 Duramax that currently has 60K miles. I over maintain this truck and love it. What is the mileage life expectancy of a well /over maintained Durmax/Allison truck?

What causes a Duramax crankcase to leak fuel?

The ball seat can deteriorate over time, resulting in an incomplete seal, and ultimately, injector leaking. Both of these issues result in fuel leaking from the injector which can then enter the crankcase. This can lead to more serious problems, as diesel fuel doesn’t offer the same lubrication properties as oil.

Why does my GMC Duramax Diesel not start?

Truck was idleing for 10 minutes warming up. Shut off and restarted 45 min. later. Drove down the street and it died and would not restart. While trying to start, the Battery not Charging warning came on. Towed it home and changed fuel filter. Primed and would start but stall if not continually priming. Dealer replaced injectors 20,000 miles ago.

Why did my 2004 Duramax engine not start?

My 2004 Duramax started and then died like it was out of fuel. Now it won’t start. I have about 1/4 tank of fuel, tried priming it until the batteries died.

Where can I find a 2003 Chevy Silverado?

2003 Silverado 2500HD Very rare stepside box 2wd New safety 340 hwy kms Truck is located in St Malo. 2003 Silverado 6.6 Duramax 411282 km Under 100,000km in last 10 yrs Company truck.

What kind of car is a 2003 Chevy Silverado?

Consumer Ratings Rank Vehicles HP #1 2003 Dodge Ram 1500 Regular Cab 305 #2 2003 Chevrolet Silverado 2500 Regular Ca 300 #3 2003 Chevrolet Silverado 1500 Regular Ca 270 #4 2004 Ford F250 Super Duty Regular Cab 260

What kind of mpg does a Duramax truck get?

Average MPG for Stock Duramax Trucks The average MPG for a truck with a Duramax engine varies depending on the truck model as well as on which Duramax engine it has. For example, the 2020 Chevy Silverado 1500 with the 3.0-liter Duramax turbo-diesel gets an EPA-estimated 33 MPG on the highway and 23 MPG in the city.

Is it possible to get 30 mpg with a diesel truck?

New diesel trucks are getting more expensive, so it makes sense that owners are trying to keep their older rigs on the road longer and get good gas mileage at the same time. It may be possible to upgrade some of your diesel truck parts for better performance and fuel economy. Let’s take a look at how to get 30+ MPG with a Duramax.

What kind of parts do I need for a Duramax Diesel?

Rely on ProSource for a wide selection of 6.6 Duramax performance parts and aftermarket 6.6 Duramax parts to increase your gas mileage and keep your truck running great for a long time. ProSource Diesel is where repair shops shop for hard-to-find diesel truck parts and kits.

What kind of transmission does a Duramax pickup have?

Nearly all Duramax powered pickup trucks were equipped with the Allison 1000 automatic transmission, with the five-speed version running from 2001 to 2005, and the six-speed starting in 2006 and running until 2019.

Where can I buy a 2003 GMC Sierra?

2003 Sierra 2500HD listings within 50 miles of your ZIP code. Get answers to buy with confidence. Save when you purchase multiple reports. Get free quotes from dealers near you.

How many miles does a GMC Sierra 2500HD drive?

1st owner drove an estimated 28,533 miles/year • 2nd owner drove an estimated 0 miles/year • 3rd owner drove an estimated 4,212 miles/year.

Are there any issues with the GMC Sierra 2500?

It has been reliable with only a few issues as it began to age. It made me realize some small preferences for the next vehicle, such as: having crew cab with four doors instead of the extended cab. The main issues encountered were: antilock brakes, window motor failure, signal lights always blown, and easily broken center console.

Are there any problems with the LB7 Duramax?

It is extremely important to have the heads surfaced flat before putting the truck back together. Water Pumps – Another issue with the LB7 Duramax is the water pump leaking. This one is fairly common and unfortunately a huge pain in the butt to change. Water will seep from the underside of the pump.

How to tell if your Duramax Diesel Turbo is gone?

If you can’t find the appropriate fitting, check boost at one of the vacuum ports. With the gauge connected, open the throttle and check the peak boost. All models should check in at 20 psi of boost maximum, with the rpm at about 1,800 for 2003 to 2004 LB7 motors and 1,600 for all others.

When did the GMC Duramax LB7 come out?

Duramax LB7 Specs & Info. The LB7 Duramax was first introduced for the 2001 model year as General Motors retired its 6.5L Detroit diesel. In every possible way, the Duramax was superior to the outdated Detroit and marked a revolutionary turning point for GMC and Chevrolet pickups in the diesel marketplace.

What are the common problems with 6.6L Duramax?

9 Common 6.6L LB7 Duramax Problems. 1 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected 2 2. Lack Of A Fuel Lift Pump. 3 3. Fuel Filter Housing O-Ring Leaks. 4 4. Water Pump Failures. 5 5. Overheating.

Are there problems with the GMC Duramax F250?

The F250 was plagued by electrical gremlins like a self deploying tailgate when you backed up a trailer or a SYNC system that spontaneously did whatever the hell it wanted. I should have never traded the RAM but needed a write off for a business.

Are there any high temp thermostats for Duramax?

Login or create an account to earn Points! The Mishimoto Chevrolet Duramax high-temperature thermostats activate at a higher temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in colder climates or have trouble reaching operating temperatures.

When did my GMC Sierra air conditioner stop working?

I had a 2001 GMC Sierra that did this when truck was less the one year old (summer of 2001 is when it was). The dealer had the truck in the shop idling for a long time and the A/C worked perfectly. I told them to take it for a ride and see. So the service manager in an effort to convince me nothing was wrong went for a ride with me driving.

Why does my Chevy Silverado keep blowing hot air?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I would check the charge in the system. You might be just a little low on refrigerant. (Low enough to intermittantly trip the “Low-pressure” switch.)

Which is the best engine for a Duramax truck?

There are a ton of bolt-ons that make driving a Duramax-powered ¾-ton Chevy or GMC much more fun than operating a 7,500-pound pickup should be. Already the quickest trucks out of the box among the Big Three, it doesn’t take much to keep them at the front of the pack.

Is there an upgrade for every Duramax truck?

If you can only treat your specific Duramax to one upgrade, make sure it’s this one. At this point, there probably aren’t a ton of LB7 trucks still sporting the original injectors they left the factory with, but you can bet there are some. That’s reason enough to make this priority numero uno for ’01-’04 Chevy and GMC HD owners.

When did the GMC Sierra 2500HD come out?

1st owner purchased on 04/30/03 and owned in CA until 12/23/10 • 2nd owner purchased on 12/23/10 and owned in CA until 02/22/11 • 3rd owner purchased on 05/10/11 and owned in CA until .

What makes a Duramax LB7 diesel so special?

The introduction of common rail injection powered by the Bosch CP3 injection pump made the LB7 Duramax stand apart from other diesels of the day with excellent power and efficiency.

In an effort to keep up with the ever-tightening emission regulations, GM redesigned its Duramax for the 2011 model year, and this time the code name was LML.

Are there any problems with my 2003 Duramax?