What did the injector fail on my 2003 Duramax?

Was recently out of town in a friends 2003 Duramax during which, one of the injectors failed. Called the local dealer and they told me to bring it on in, and since I was from out of town they would get right on it.

What kind of fuel injection does a Duramax use?

The Duramax employs fuel injection to deliver fuel to the engine under very high pressure. The procedure for replacing the fuel injectors is generally the same for all full-size Chevrolet trucks made after 2005 with diesel engines.

How do you replace injectors in Duramax radiator?

Connect the fuel lines to the fuel injectors, and attach the clips to the fuel lines. Tighten the retaining nuts for the fuel lines to 30 foot-pounds with a torque wrench. Connect the remaining components by performing steps one through three in reverse order. Replace the coolant in the radiator.

What kind of engine is the Duramax engine?

The Duramax engine is an eight-cylinder diesel engine from General Motors that has been in production since 2001. General Motors uses it in larger trucks, such as the Chevrolet Silverado 2500 and 3500. The Duramax employs fuel injection to deliver fuel to the engine under very high pressure.

When to replace the fuel injector on a Duramax LBZ?

Replace the failed injectors in your 2006-2007 GM 6.6L Duramax LBZ with the Bostech DE01368 Platinum Series Remanufactured Fuel Injector. The Platinum Series is a step up from the Bostech Silver Series.

What kind of injector does a GM 6.6L Duramax use?

Maximize the performance of the stock injectors in your 2006-2007 GM 6.6L Duramax with the DDP LBZ-50NZ 50HP Injector Nozzle Set (20% Over). No other upgrades provide you with the power and torque that a set of Dynomite Diesel Injector Nozzles can.

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.

What’s the stress test on a Duramax injector?

*Updated injector body “stress test” with maximum heat and pressure through all gun drilled holes to qualify durability, fretting erosion and prevent internal cracking. A properly “Manufactured Again” injector is the functional equivalent of a new part, and is virtually indistinguishable from new part performance.

Are there any Duramax engine injector issues?

LLY, LBZ, LMM: Injector issues with these engines seem to be few and far between and service is definitely much easier. What we have been seeing though is that trucks with 130k or so are starting to come up with P0087 limp mode when towing especially when hot. See my related Tech Tip Duramax LBZ and LMM P0087 low fuel pressure code.

Are there any issues with the Duramax fuel pump?

The new injectors available from us and others are updated and do not have the cracking issue. Fuel Filter Housing Oring Leaks – The Duramax fuel system does not have any sort of low pressure fuel pump pushing fuel to the engine from the tank. The injection pump sucks all the fuel from the tank.

What kind of fuel injector does a Chevy Silverado have?

Select your preferred location and we’ll note which parts are ready to be picked up TODAY. Fuel Injector, Diesel, Chevy, GMC, 6.6L, Duramax, LB7, 2001-2004.5, Each Fuel Injectors, Diesel, Remanufactured, Chevy, GMC, LB7 Engine Code, Each

When to return a Duramax LB7 injector kit?

You may return an item purchased from Dieselogic for any reason up to 30 days from the original invoice date provided, in our determination, that the Product is in “brand-new” condition, has not been installed, and is returned in the original packaging.

How much does a fuel injector replacement cost?

Upfront and transparent pricing. Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM. GMC Sierra 2500 HD Fuel Injector Replacement costs $2048 on average. What is a fuel injector and how does it work?

What happens if the fuel injector is not working?

However, if the injector is known to be malfunctioning, it can cause engine misfires, excessive emissions or, in the case of a badly leaking injector, can overload and overheat the catalytic converter. Additionally, fuel efficiency will always be diminished if the fuel injectors are not working properly.

Can a fuel injector leak into the intake manifold?

Odor of raw gas or visible leaks. Fuel injectors should not leak fuel into the intake manifold when the car is off. If you notice any fuel odor around your car, the possibility of a leaking fuel injector should be considered. There should be no external leak from a fuel injector.

What kind of warranty does a GMC 3500 have?

2500 and 3500 Series Heavy Duty (HD) pickups equipped with a 6.6L Duramax ® Turbo-Diesel Engine GMC backs your new vehicle with its no-deductible Bumper-to-Bumper Limited Warranty.

What kind of insurance does a Duramax have?

The 1500 Series Light-Duty (LD) pickups equipped with a 3.0L Duramax Turbo-Diesel and the 2500 and 3500 Series Heavy Duty (HD) pickups equipped with a 6.6L Duramax ® Turbo Diesel Engine are covered for 5-years or 100,000 miles, whichever comes first. See dealer for details.

What kind of EDM does a Duramax injector use?

EDM (Electro Discharge Machine) precision-drilled spray holes and 100% flow tested for spray plume uniformity and flow balance. *All control valves include the new chrome plated ball, and precision micro-finished seat to prevent erosion and extend wear resistance.

When to change injector lines on GM Duramax LB7?

The DDP LB7 Injector Line Set covers the complete engine of your 2001-2004 GM 6.6L Duramax LB7 engine. It’s highly recommended that you change your lines any time when replacing your injectors. On older lines, corrosion tends to build up on the lines resulting in debris that can be transferred into your new set of injectors.

What is the Dorman 904-126 fuel injection line?

The Dorman 904-126 Fuel Injection Line is a direct replacement for your 2001-2004 GM 6.6L Duramax LB7. The factory lines are commonly contaminated with corrosion and other debris that can cause leaks and also damage your new injector internals.

How long does it take to replace a Duramax injector?

Replacing all four injectors required removing both right- and left-bank rocker arm covers and the overlay of wiring harnesses and ducting covering of each. Quoting from one source, the labor time for removing and replacing both covers is about 9.2 hours for “severe service” cases.

What is the firing order of a Duramax fuel injector?

The firing order is 1-2-7-8-4-5-6-3 with the odd-numbered cylinders located on the passenger side of the engine and the even-numbered cylinders located on the driver’s side. DTC P2149 sets when the FICM detects a fault in the high-voltage circuits of fuel injectors #2, #3, #5 and #8.

Why did my GMC injectors have to be replaced?

A red flag went up in the owner’s mind because the GMC had been bought from a private owner who claimed that all eight injectors had been replaced prior to the sale. The current owner called a mutual friend of ours who works as a heavy-duty mechanic for a local construction company.

What kind of fuel injector does a Duramax 6.6L use?

Restore performance in your 2001-2004 GM 6.6L Duramax LB7 with the Bostech DE651 Silver Series Remanufactured Fuel Injector. Bostech Silver Series LB7 Fuel Injectors are 100% disassembled, then each component is inspected, polished, and certified to original specifications.

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 are the nozzles for a GM 6.6L Duramax?

The BD-Power 1076650 60HP Injector Nozzle Set for your 2001-2004 GM 6.6L Duramax is designed to increase power and performance in your truck. Made from genuine OE nozzles, the 33% upgrade is geared towards the daily driver that’s looking for all-around power and increased efficiency.

Are there any new Bosch fuel injectors out there?

LB7 Injectors, BOSCH ® OEM Brand New Fuel Injectors. These LB7 injectors are BRAND NEW from BOSCH ®. These are the most up to date version of the previously troublesome LB7 injector.

Which is the best injector for the LB7 motor?

They are the highest quality, most reliable injectors available for the LB7 Motor. Replaces part numbers: BOSCH ®: 0 986 435 502, 0 445 120 008. GM: 97729095, 97720661, 97208074. Each LB7 injector comes with a two-year warranty. Information about warranty policies can be found HERE.

Is there a warranty on Bosch LB7 injectors?

They are the highest quality, most reliable injectors available for the LB7 Motor. Each LB7 injector comes with a three-year warranty. Information about warranty policies can be found HERE. Each LB7 injector includes O-rings and copper crush washers necessary for installation.

Do you need a Duramax LB7 fuel injector?

In need of a replacement Duramax LB7 fuel injector? Or a performance set of injectors to match up with your aftermarket tune? Shop Sinister Diesel’s full collection of Duramax LB7 diesel injectors below:

Where can I get a fuel injector replacement?

GMC Sierra 2500 HD Fuel Injector Replacement at your home or office. Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing. Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

What does AFM do on a Duramax injector?

All nozzles include AFM (Abrasive Flow Machining) to fillet/round the edges of the spray hole inlets. EDM (Electro Discharge Machine) precision-drilled spray holes and 100% flow tested for spray plume uniformity and flow balance.

What is the VIN number for a Duramax Diesel?

Many model years were crossover or transitional years for the Duramax diesel, thus it is often necessary to decipher the engine model/version using the vehicle’s VIN number. The chart below may be used to identify which Duramax engine your truck has based on the 8th digit of the vehicle identification number (VIN).

When did the Duramax LBZ diesel engine come out?

But in mid-2004, Chevy introduced the LLY engine and although it was also popular at the time, it had several performance issues including overheating. To fix that and other problems, Chevy replaced the LLY with the Duramax LBZ which debuted in 2006 and continued to be manufactured through 2007. The 6.6-liter Duramax LBZ was a short-lived engine.

Which is GM 6.6L LBZ fuel system do you use?

Maximize the performance of your 2006-2007 GM 6.6L Duramax LBZ with the DDP LBZ-150 Remanufactured 60% Over Injector Set. This injector set is intended for use on 1000+ RWHP applications. Starting off as remanufactured, each injector receives extensive injector body modifications to flow more fuel.

How big is a 6.6L Duramax LBZ engine?

Duramax 6.6L LBZ Specs Engine Variation 6.6L Duramx LBZ, V8 turbo diesel 90 degr Production 2006 – 2007 VIN Code D (8th digit) Engine Size 6.6L, 403 cubic inches Head Material Aluminum

What did the injector fail on my 2003 Duramax?