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2005 GMC Safari 4.3L Misfire, MIL Lamp on
Posted to GM Driveability on 9/21/2012 21 Replies

I have an 05 Astro. Just installed a new jasper 4.3 and an install kit. Engine ran fine just the thrust bearings were bad. I now show misfires on #1 and #4 cylinders but only @ [...] rpm free reving or light or heavy load. The vehicle does not feel or appear t...

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  Related Documents & Media  2005 GMC Safari

 
Message Closed w/FIX

car Vehicle Data

2005 GMC Safari

VIN 1GKDM19X65
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load, Cruise, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2005 GMC Safari

VIN 1GKDM19X65
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load, Cruise, Intermittently

Trouble Codes

P0300Multiple Misfire Detected