Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

won't start cause of cold

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Old Jan 29, 2010 | 04:23 PM
  #1  
tb dmax 01's Avatar
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From: clermont county ohio
Default won't start cause of cold

Okay i went to go out and start my truck this morning to let it warm up before i left for school it started but only ran for about a minute the it shut off...i am pretty sure the fuel line has water that is frozen in it. i have a turbo heater on it right now and i put garbage cans on the side to try to block the heat. then one of my friends told me to check the fuel filter and when i prime it it gets fuel... any suggestions would help thanks
 
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Old Jan 29, 2010 | 05:21 PM
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cumminsdad08's Avatar
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try replacing the filter with a new one, and let that heater get under the truck all the way back to the tank. might have gelled up somewhere along the lines.
 
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Old Jan 30, 2010 | 10:16 AM
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ya it sounds like you have some summer diesel left over in your tank or lines which gelled up on you.
 
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Old Feb 4, 2010 | 11:27 AM
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tb dmax 01's Avatar
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well i had the turbo heater on it for about 2 hours. then my buddy came over gave me a jump and it started right up.
 
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Old Feb 4, 2010 | 11:34 AM
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DIRTYMAX2004's Avatar
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i would put some power service diesel 911 in it if ure not goin to replace the fuel filter. I recommend you replace the filter though. when they gel it usually messes them up.
 
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Old Feb 15, 2010 | 11:09 AM
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tb dmax 01's Avatar
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okay i replaced the filter and put some de-gel and icer in the fuel tank it hasn't had any problems lately the guy i talked to told me to put that in the tank about once a month.
 
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Old Feb 15, 2010 | 12:38 PM
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BriteWhiteRam's Avatar
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i would run a little anti-gel in every tank, it would be cheap insurance
 
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Old Feb 15, 2010 | 12:43 PM
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I run a little Howe's in the tank with every fill up during the winter
 
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Old Mar 4, 2010 | 04:13 PM
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I'm in South Fla and mine is doing the same thing. I bleed it, then prime and i'ts fine for a few days. It's my understanding that there is some type of vacuum leak, either from the bleeder screw, WIF ( water in fuel sensor) or the petcock. Mine will run for a few days after priming, and once primed it starts right up. Symptoms were it would start then shut off after a few seconds and require priming. Seemed more prevalent after it was cold out. Thinking it's a small pinhole in the fule filter up top, or the bleeder oring shrinking when its cold causing the vacuum leak.....

---AutoMerged DoublePost---

It seems that if it were not a fuel issue,priming would not solve the problem as it does now...
 

Last edited by GSL4FD; Mar 4, 2010 at 04:13 PM. Reason: Automerged Doublepost
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Old Mar 4, 2010 | 10:40 PM
  #10  
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The fuel filter housings have been known to crack. I think i have a few laying around if you need one.
 
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