× 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: Best Answer
Posted to Emissions Forum on 12/1/2010 2 Replies

[...trimmed text...]

the words ping , pre-detonation , and a stuck thermostat all come to mind . i've had many cars overheat on the dyne and pass just fine . i've had cars ping like hell during the asm test and pass fine... Login to read more.

2 Replies Received (View Replies)