× 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: 1998 Jeep grand cher. 4.0l P0121 and bucks at 5300 rpm
Posted to Technical Discussion Forum on 10/27/2006

5300 RPM between gears? Whazzup with that? You're probably on the rev limiter. What's the freeze-frame on the P0121 say?

Happy trails, Login to read more.