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

engine problems?

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  #1  
Old 06-05-2010, 04:23 PM
dodgeflatbed's Avatar
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my buddy is looking to buy an '85 6.2L of another friend. for some reason when the truck is warmed up, and should be running better, it lags and will only do 5-15 mph... is this a major problem or an easy fix????
 
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Old 06-05-2010, 04:29 PM
Woody35's Avatar
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this sounds more like a transmission problem then a engine problem, does it shift. do a compression test. whats the fuel flow like?
 
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Old 06-05-2010, 05:21 PM
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Does the truck sputter when it is doing 5-15? Sounds more like a fuel flow problem to me. Unless the engine needs completely rebuilt there isn't much that can be a major problem.
 
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