× 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
2008 Chevrolet Express 1500 5.3L Poor Idle Quality, Cuts out, Misfire
Posted to GM Driveability on 7/25/2013 8 Replies

Bogs down on acceleration, fouls spark plugs, O2 sensors hung on rich. Have cleaned throttle body and it helped a little; removing the air filter also helped, but it still bogs down. Converter temperatures are similar at about 1000 degrees F. Driver's side con...

8 Replies Received (View Replies)

  Related Documents & Media  2008 Chevrolet Express 1500

 
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Express 1500

VIN 1GCFH15448
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Misfire
OccursUnder Load

Trouble Codes

300
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Express 1500

VIN 1GCFH15448
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Cuts Out, Misfire
OccursUnder Load

Trouble Codes

300