98XJSport
Destiny is the rising sun
- Location
- Western Maine
I have a 98 4.0 XJ. Every once in a while, after I drive home from work, I get a check engine code. What happens is 1. I stop after driving at normal operating temp. 2. I start the jeep after about 5-10 mins, and it seems normal. 3. Suddenly my temp guages jumps from 210 to 260 and usually gives me the check engine code.
My question, is it possible to get this temp jump from a mechanical defect, ie waterpump stalling or such? Ive replaced the t-stat, flushed the rad, and replaced the engine coolant temp. sensor, with no real positive results. The first time I checked the code for this problem it gave me the coolant temp. sensor, but I haven't been able to check it again because of the inconsistancy of the problem. Note, it also only lasts for about 5 or 8 turns of the key. Also, it seems to drive...not right, like its not shifting right. Any ideas?
My question, is it possible to get this temp jump from a mechanical defect, ie waterpump stalling or such? Ive replaced the t-stat, flushed the rad, and replaced the engine coolant temp. sensor, with no real positive results. The first time I checked the code for this problem it gave me the coolant temp. sensor, but I haven't been able to check it again because of the inconsistancy of the problem. Note, it also only lasts for about 5 or 8 turns of the key. Also, it seems to drive...not right, like its not shifting right. Any ideas?