× 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: p0172, back pressure question
Posted to Technical Discussion Forum on 7/7/2015

Late closing to this. I found the issue with this car. Timing chain guide broke and intake cam jumped 2 teeth. Wish I could of seen this earlier. Timing chain did not make noise except slightly on start up. Vehicle had been run like this for awhile as the two ... Login to read more.