I own a ‘02 Duramax. GMC HD 2500. I recently was on my way to Boise ID and topped off my tank with Diesel. I then tried to start the rig and it was a very prolonged start, didn’t think it was going to start. Never had that problem before. Took it to the dealership, they said it was the fuel filter. They changed the filter, still did not start right. So I siphoned all the fuel out of the rig, replaced the filter again myself this time. Thought it had to be fuel. Still had prolonged start. Took the truck to another mechanic and had the fuel tank steam cleaned. Lots and Lots of sludge, shale, etc ... bad. Truck did start for them at first. Drove the truck home, now it will not start at all. I have less than 40K on the truck. Anyone have any ideas? Pump? Electronic? The dealership here will probably not have a clue either, had the truck towed there today, not exactly Diesel pro’s. Can you help?
I'll say ... Wow! No codes and no clues make this an expensive (more expensive ) Duramax. The crazy thing is ... I drove it home. That takes fuel. It runs fine once it starts. The start'n thing is the problem.
Ordinarily it sounds like air is getting into the system somewhere and on start up it's not getting enough fuel to fire. Once started the pump keeps up.
Maybe the glow plugs are covered in crap from the bad fuel and can't generate enough heat to fire the motor.
Since it all started with the last fueling, kinda makes you focus on the fuel issues, but could be something entirely different and just a coincidence it happened at the same time as the fueling.
Hopefully the dealer will figure it out. Once they tell you something you can bounce it off of DMAXALLI for the straight scoop. You might want to repeat the question in the ASK DMAXALLI section and hopefully he can give you some clues.
I feel your pain check out my 2 threads you will see what I went threw all becouse I ran out of fuel and my guage said otherwise your problem sounds different but if you have a good dealer they should figure it out if not tow it to Eric in MI. he will fix it
I have the exact same problem as you! I'm just happy I'm not the only one (sorry for that). I'm taking mine to the dealer on Wed. Dec 3rd. They seem to think the same thing. (air leak). I hope it's not the injectors that I hear so much about.
I have an 03' Dmax with 33,000 miles on it. My last truck was a 98' chev with a 350, 181,00 miles on it. (NO problems ever) Lucky?
it started at 5:30am but at 7:30am all it would do is crank? I also have 33,400 miles on it. The dealer just called me and said the rear battery is bad. (Yes it's under warranty) The mech said the truck doesn't have enough battery amps on 1 battery to start. They replace the battery and it started and ran perfect!
TommJr, I also had a 97 GMC Yukon that I sold with 186,500 miles on and it ran perfect when sold. These will last with the correct maintance.
THats weird that they say it needs two batteries. When i bought my 02 Dmax they forgot to hook up the front battery and i only found out when i wanted to jump start somebody. I never even knew that the battery was disconnected.
I have an 04 Dmax, Sat nite wife and I were in Boise for dinner, came out and truck would not start, would crank but no fire, after about 5-6 minutes of trying she fired right up, stopped at Hastings went inside came out and same thing, what the heck, drove truck into Boise Sunday, came out same thing, but this time it thru a code, drove truck to my lube shop and pulled a code of crankshaft position sensor, called dealer and they will take care of it. Just my experience and something to look for. HTH.
I had the same problem with my 03 when I changed the filter. If you don't get that top oring on just right the filter will suck air and effectivly deprime the system. When you screw the filter in go slow and make SURE the oring is seating properly. I had to keep pushing the oring in with a scribe while seating the filter. Try it it just might work.
Not sure if this is applicable to the Dmax, but my dad always told me the 6.2's needed to turn at least 100 rpm to start. I would think that it would start with one battery if the engine was warm, I would think it would only need two if it was cold and engine oil was thick.
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