Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

Runs Good, Then Runs Crappy, Then Dies, Then Takes Forever To Start

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Old 12-31-2008, 09:36 AM
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Default Runs Good, Then Runs Crappy, Then Dies, Then Takes Forever To Start

This is on an 82 6.2. I got half and half #1 and #2 in it, can't be gelling up, or can it?? IDK what else it could be. Started and ran good yesterday. I'm at the end of my rope.
 
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Old 12-31-2008, 10:07 AM
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add some antigell just in case.......................I have read that the new ULSD gells easier than the old stuff with sulfer in it

A jug of antigell is cheap...............try it
 
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Old 12-31-2008, 10:08 AM
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Removed the fuel line coming from the fuel pump (electric) and going the fuel/water separator and no fuel is even coming out. So, the tank must have enough ice in it to plug off the pick up tube??
 
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Old 12-31-2008, 10:10 AM
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Originally Posted by Whitmore
add some antigell just in case.......................I have read that the new ULSD gells easier than the old stuff with sulfer in it

A jug of antigell is cheap...............try it

Did twice the recommended amount when I filled both tanks yesterday. Can't be bad fuel, cause I've been getting fuel from there (Cenex) the last 12 years and no problems as of yet. Gonna have NAPA bring me some Power Service 911.
 

Last edited by wildbill; 12-31-2008 at 10:17 AM.
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Old 12-31-2008, 10:28 AM
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Removed the fuel/water separator and she's full of ice . So that means everything before it is iced up as well.
 
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Old 12-31-2008, 10:55 AM
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that sucks.... it's 74* here today.....
 
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Old 12-31-2008, 12:14 PM
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Got lucky, just the separator was iced up. Filled a new one up with 911 and 2 stroke, re-bled to the secondary filter and she fired right up.


Just a reminder to ya'll: Drain your fuel/water separator periodically!!!
 
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Old 12-31-2008, 06:29 PM
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Thanks for the tip. How cold was it when you had this happen?
 
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Old 12-31-2008, 09:10 PM
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yeah it you have a water separator in the line and get some water in the fuel it will freeze up the line. i was thinking fuel problem from the get go
 
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Old 12-31-2008, 09:50 PM
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Another reason that I am glad to be in SOUTHeast TeXas....


Glad ya got it figured out!!
 


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