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

Hesitation upon acceleration.

  #1  
Old 12-04-2013 | 06:31 AM
SurlyQue's Avatar
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Default Hesitation upon acceleration.

My 2000 6.5 will sometimes hesitate almost like it's missing when I accelerate. It will almost always happen if I've parked on a slight incline or decline and if it's been left for an hour or so. Doesn't happen in the morning or when taking off from a completely cold start. I've checked the threads and it seems like it might be the PMD or a fuel pump issue. Has anyone else experienced this and if so how did you get rid of it?
Thanks!
 
  #2  
Old 12-05-2013 | 11:31 AM
racer55's Avatar
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I would first look at the fuel pressure reaching the IP,and for air getting in th fuel.
 
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