Why does my GMC Duramax keep losing Prime?

Ran out of diesel on freeway. Put fuel in tank and primed filter in engine compartment. no luck. Have an 04 GMC duramax. Help … read more my 2003 duramax stalls out right after start up. I have to pump the fuel pump on top of the fuel filter to get it to start again then it runs fine. Why? … read more

What was the cause of death of my Duramax?

Vocational, Technical or Tra… Duramax died 5 seconds after start up, was running fine prior. Duramax died 5 seconds after start up, was running fine prior. Replaced batteries, cranks over fine, but still will not start. Pumped primer about … read more

Is the Duramax 08 DMAX a good car?

Those being the only 2 things but i’d buy one again in a heart beat! From what I’ve heard, the 08 Dmax is pretty damn good, aside from less fuel mileage than the LBZ, but that’s to be expected with the emissions that all of the big 3 have to meet. I just can’t bring myself to embrace the new body style.

What kind of Duramax filter keeps losing Prime?

Chevrolet 2500hd 05 duramax i keep losing prime i have to… We have a 2005 6.6 Duramax diesal and it keeps losing prime. Auto repair pro, 30 years ex… Cam! I have an 05 k3500 d-max. It keeps losing prime. The Hey Cam! I have an 05 k3500 d-max. It keeps losing prime. The filter head has been rebuilt.

When did my GMC Duramax start having Def issues?

I own a 2015 early build gmc sierra 2500 Duramax. The truck has had a few issues since purchase but overall has been great…..until now. Recently and when I day recently I mean 5 or 6 weeks ago I started having def system problems. One day while driving around town my check engine light came on. Took the truck to a dealer by my work.

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.

When did I Buy my GMC Duramax Diesel?

Hello sir. Yes I bought the truck brand new april of 2015. Ive been going to basically the same gas stations for my diesel fuel. As far as def fluid ive used truck stop def and blu def. The truck has had mostly gm def rcently though.

Can a GMC Duramax run with no trailer?

Dropped the boat, let it sit a while then it ran great with no trailer. Took it back and they replaced “some fittings”. So 2 months later, I don’t fish near enough, I drove it 8 hrs to the coast and hooked up to a boat. It ran about 5 miles. Same thing , light comes on loss of power but can feather it up to 40-50 but cant push it.

Is there a priming system on a Duramax Diesel?

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. However, if it is a DuraMax engine, then right on top of the fitting where you mount your diesel filter, there is a primer pump and an air bleed valve.

Why does my Chevy Duramax not start up?

It starts right up like it should after i change the filter. After some miles and driving for at least 30 mins it wont start up. Seems like longer you drive the harder it is to start if it doesnt fully cool down! The dealer looked at the fuel filter head unit and said it was fine.

What kind of engine does a Duramax LLY have?

The DFC Tow/Haul Standard Series Long Block is a remanufactured engine designed for improved towing and hauling in your 2004.5-2005 GM 6.6L Duramax LLY. Able to support up to 500 horsepower, this DFC engine is remanufactured to meet the most strict guidelines.

How big is a LLY Duramax diesel tank?

LLY Duramax Specifications Chart Manufactured Years: 2004-2006 Valvetrain: Overhead Valve (OHV) 4 Valves per cylind Engine Oil Capacity: 10 Quarts With Filter Fuel: Diesel Fuel Tank Size: Short Beds: 26 Gallons Long Beds: 34 Gal

Are there any problems with the Duramax LB7 engine?

For this reason, adding performance modifications to the Duramax is a common route to improve performance and hauling capacity. While light modifications such as intakes, exhausts, and modest tunes shouldn’t cause any problems, bigger or more aggressive modifications can. The LLY uses the same forged-steel rods as the LB7 used.

How much does it cost to replace a Duramax engine?

Note: $500 Crate charge is included in core charge total. Engine shipping crate must be returned with core engine to receive full core credit. The DFC Tow/Haul HD Standard Series Long Block is a great alternative to replacing your entire 2004.5-2005 GM 6.6L Duramax LLY powered truck.

Why does my GMC Duramax not start up?

Sat in drive way moved it around a couple of times and parked it in the garage to do tcase. Almost two months later I finally finished it and now it won’t start. Acts like it will, fires up then dies right aways like the fuel shut off.

Why is my fuel filter stuck on my Duramax?

I have replace the fuel filter twice, once with an after-market and now back to the OEM filter. I have replace the water sensor at the bottom of the fuel filter. I have been told that it might be my fuel pump which has a one-way flow valve that has become stuck allowing fuel to flow back to the tank. I’m out of ideas.

What happens when you Prime a Duramax Diesel?

It starts and runs really good for a few weeks or so after each fuel filter change then wont even start at all til i prime it and bleed it. Hope the new injectors fix this problem!

What do I need to rebuild my Duramax filter?

AutoZone O’Reilly’s Carries the filter head rebuild kit now too part 904-124 for about $25 it says primer seal kit, but comes with all o rings. It will probably have to be ordered but always there next day.

What to do if you lose prime in fuel system?

Dump the factory filter and replace with Nick’s underhood Cat setup. When you order the Cat filter and adapter also order a filter head rebuild kit which replaces the o-rings. Did you find the recommended reading relevant to this discussion?

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.

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.

Is there a problem with my Duramax truck?

If it’s a 4×4 all of the classic Duramax trucks from 01-07.5 have the issue. And if you have any other trucks all Chevy and GMC trucks 1500, tahoe, etc. from 98-07 have the same issue. Anyways below is a link to the fix, and on the bottom left side of our site is 13 pages of instructions that shows the problem and how to fix it.

What are the most common Duramax 6.6L engine problems?

5 Most Common LBZ Duramax 6.6L Engine Problems. 1 1. LBZ Cracked Pistons. The LBZ is revered for its tune-only performance capabilities. With various upgrades, this engine is easily capable of 2 2. Duramax LBZ Water Pump Failure. 3 3. Glow Plug Failure – LBZ. 4 4. Allison 1000 Transmission Line Leaks. 5 5. Duramax EGR Problems.

When did I Buy my 2006 Duramax Diesel?

It was a lease return when I bought it in June 2007 with high mileage for its age, but did not appear to have been abused. Are there any known serious problems with the 2006 Duramax, or things that I should watch for?

Why does my GMC Duramax keep losing Prime?