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2000 GMC Sierra 1500 SL 4.8L Poor Idle Quality, Hesitation, Misfire
Posted to GM Driveability on 8/9/2007 4 Replies

hello there, thanks in advance for any responses. i have a gmc sierra, 4.8 v8, with missfires on warm up, at idle, have 56-57 lbs of fuel pressure, koeo, misfires are on cyl #2, and #7, only. intermittnely on #8, replaced the fuel pressure regulator, diaghram ...

4 Replies Received (View Replies)

  Related Documents & Media  2000 GMC Sierra 1500 SL

 
Message Closed w/FIX

car Vehicle Data

2000 GMC Sierra 1500 SL

VIN IGTEK14V9Y
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursHot, Idle

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2000 GMC Sierra 1500 SL

VIN IGTEK14V9Y
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire
OccursHot, Idle

Trouble Codes

P0300Multiple Misfire Detected