Question about 2002 Jeep Liberty
I have a 2002 Jeep Liberty Sport 4WD 6 cyl. I have had it to a Jeep dealership and two other mechanics with no answers. The check engine light has come on since September 2008. Numerous things have been done to try and cure the problem to no avail. My check engine light is currently on and I don't know what else to do. The dealership tells me the next step is to pull apart the cylinder which alone will cost $1,000 and then to look at it and fix it will cost over and above that. Ridiculous especially after I spent almost $1500 already on it and they haven't fixed the problem. The things that were done is cleaning the fuel system (twice), doing a compression test that came back fine, flipping the coils (not replacing it), changed spark plugs, 6 cylinder tune up, switched injectors to see if I would get the same code (which I did), cleaned combustion chambers. I really like my Jeep but I don't know what else to do or where else to go.
If its the 4.0 engine......Replace the spark plugs
Posted on Aug 24, 2010
P0302 is a cylinder #2 misfire. when they swiched the coils did the misfire follow the coil or did it stay on cyl.#2. if the problem stayed with #2 they need to pull the cylinder head and check the valves with known good valves. have them install it into the cylinder head with valve lapping compound and run a pattern. if the cylinder head comes out with a good pattern replace the valves with the new pieces and reassemble the motor. if not the vehicle will need a new cylinder head
Posted on Jan 10, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 08, 2015 | 2005 Jeep Liberty
Nov 28, 2015 | Cars & Trucks
Nov 01, 2015 | 2005 Jeep Liberty Sport
Jun 21, 2013 | Chevrolet Cars & Trucks
Jun 09, 2013 | Cars & Trucks
Dec 26, 2010 | 2002 Jeep Liberty
Sep 12, 2010 | 2002 Jeep Liberty
May 31, 2010 | 2003 Jeep Liberty
Dec 29, 2009 | 2002 Jeep Liberty
Jun 01, 2009 | 1998 Jeep Wrangler
1,225 people viewed this question
Usually answered in minutes!