× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1989 GMC motorhome 454CID Poor Idle Quality, Hesitation, Misfire, MIL Lamp on
Posted to GM Driveability on 4/5/2005 25 Replies

I am having a problem with this motor home burning through the #8 spark plug wire boot. This problem first appeared on a 1500 mile trip, but only on the last 200 miles of a 400 miles leg. It started cutting out and possibly backfiring on accelleration, but idl...

25 Replies Received (View Replies)

 
Message Closed

car Vehicle Data

1989 GMC motorhome

VIN 721LK44399
Engine454 / 8 cyl
DeliveryCARB / 4bbl
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursHot, Under Load, on Accel, Idle
Misc.Southwind Motorhome
Message Closed

car Vehicle Data

1989 GMC motorhome

VIN 721LK44399
Engine454 / 8 cyl
DeliveryCARB / 4bbl
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursHot, Under Load, on Accel, Idle
Misc.Southwind Motorhome