× 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
Re: '91 Buick Skylark 2.5 unusual backfiring - need ideas.
Posted to Technical Discussion Forum on 6/3/2003

Hi Brian; I had this problem on an 89 Celebrity with a 2.5L. It had just started giving problems with an occasional jerk on acceleration. I scope tested the secondary ignition and pulled the plugs looking for carbon tracking but everything looked good. Then I ... Login to read more.