Question about 2003 Jeep Grand Cherokee
That sounds to me like the catalytic converter is going out. suggestion, take it to a muffler shop and have them check it out. As for the ticking and missfiring, mine has done the same thing for a while and I keep throwing out a vacuum leak as well as Throttle position control, cruise won't work as cruise, it will actually slow down on hills from 70-40 mph, but I know both are the problem, solution, the throttle position control is under the air intake, take the air box off of the throttle body and replace it after having autozone run a check. From there..... find someone good at mufflers as well as vacuum leaks and fix it. lol.
Posted on Jun 18, 2008
Tips for a great answer:
Jan 08, 2016 | 2003 Ford Windstar
Nov 11, 2012 | 2003 Chevrolet Impala
Oct 31, 2012 | Cars & Trucks
Dec 28, 2010 | 1998 Ford Escort
Mar 10, 2010 | 2002 Jeep Grand Cherokee
May 23, 2009 | 1992 Land Rover Range Rover
Feb 18, 2009 | 1997 Toyota Land Cruiser
Dec 22, 2008 | Volkswagen Golf Cars & Trucks
282 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: