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1999 GMC Jimmy SL 4.3L Number 4 cyl
Posted to GM Engine on 7/22/2009 16 Replies

I pulled codes and found P0304 and P0300. Misfire counts on scanner immediately rise. I checked the normal stuff(spark output, fuel pressure,and injector balance). All were acceptable. I then swapped plugs and wires, still no change, I performed a compression ...

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  Related Documents & Media  1999 GMC Jimmy SL

 
Message Closed w/FIX

car Vehicle Data

1999 GMC Jimmy SL

VIN 1GKDT13W3X
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedNumber 4 Cyl
ConditionsMisfire
Message Closed w/FIX

car Vehicle Data

1999 GMC Jimmy SL

VIN 1GKDT13W3X
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedNumber 4 Cyl
ConditionsMisfire