× 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: Ford Transit 3.5L- underboost
Posted to Technical Discussion Forum on 4/30/2024 6 Replies

Thank you both for the tip. I checked backpressure on both banks by removing a spark plug on each side and using my WPS in-cylinder. Indeed the cats are clogged. I observed up to 7 psi backpressure at about 2000 rpm and had 3.2psi at idle. Thank you both! Login to read more.

6 Replies Received (View Replies)