Loving it so far, such a great vehicle for daily driving and messing around town in. This one has 85k miles and is a 2002 w/ the HO 4.7. It currently has two problems I am pretty confused about as I've searched around.
1. CEL due to 2 EVAP codes, one is for a small leak, one for large. I looked several times for vacuum hoses that looked cracked or completely off and could not find anything wrong. I went ahead and changed gas caps and it did not help anything. I went to change out the PCV valve just for the hell of it and although it's an 02 I had the older style/short PCV Valve (http://www.wjjeeps.com/pcv_wj.jpg
). Kind of puzzling, seems odd that it would need a new canister if thats it, but who knows? Getting 13.5 MPG around town and peaking at 18.1 on the highway. May be worse than normal due to this.
2. Service Tire Pressure Monitoring System...I clear the code every time I start it. There are no tires reading high or low pressure and readings are consistent among all 4. This is the lesser concern of the 2 problems but would still like some kind of an idea?