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 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?

Why does my outboard engine lose fuel Prime?

Outboard engines lose fuel prime because of an air leak in the fuel system. Somewhere between the engine and the fuel tank. Here are the best and quickest ways to troubleshoot and resolve this issue! What Are The Symptoms of An Air Leak?

When do I have to Prime my engine?

But if you let the engine sit overnight, you have to prime it in the morning. Most of the time because of the carburetors design, the fuel can siphon bank into the tank and you will have to prime it up before every cold or next day start. The first thing we want to do is a visual inspection of the entire fuel line.

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 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.

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 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.

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.

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 your Duramax won’t start?

Re: Duramax won’t start! I had the same problem. The LLY is famous for developing a small crack in the fuel/water filter housing. Try priming the filter (loosen small nut, push down on primer until fuel seeps out of nut, retighten nut).

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??

What’s the number on the glow plug on Duramax?

The only code showing up is a number three glow plug, but that code has shown up on and off for a while, and shouldn’t make it impossible to start. Clicking this will make more experts see the question and we will remind you when it gets answered.

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.

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!

Why does my GMC Duramax die in the morning?

It starts decent during the day but in the morning it will barely start run for 1 second and completely die and wont start back up. I prime it and bleed it and then it will start. It does have air bubbles in the fuel line when i do bleed it.

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.

Where is the primer pump on a Duramax?

There is a primer pump on top of the filter head. You have to unscrew the bleeder screw and pump the pump until you get fuel out of the bleeder. Thats it.

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