Think I am going to try and pick up an aftermarket electric temp gauge with sensor tomorrow and swap out the stock sender in head and see if that reads accurately.
So we may be onto a bad gauge/sensor. Hooked up the obd scanner and set live data for coolant temp. Started a trip to the store watched it climb to 160-170 degrees on the scanner even though the gauge inside said 215. By the time i reach the store the gauge says 240 but the scanner says 205...
Ok just started on a cold engine. Ran it up to temp. Gauge reads 240ish. Scan tool says 205. Infared at housing says 190-195. It seems to be acting better but i did drive it last night and it turned the aux fan on by itself and my obd scanner showed coolant up to 217 and more if i kept driving...
Thermostat housing is around 175. Closer to 195 at the actual sensor. Gauge reads 240+ my obd scanner says 210. Why would the air not burp out or move at all? I have been goin through this for 2 weeks. Obviously by those readings youd think im not running hot. But that doesn't keep my gauge from...
I got the radiator from advance auto. But even the old one not leaking gave the same results I just ran it again this morning and it went up to 240 degrees. Both upper and lower hoses didnt really feel hot as they should i feel like they are full of air and cant really feel fluid in them. If its...
Some updates, still have not fixed this.
I changed the head gasket and tried another new water pump. Still no signs of coolant in oil or white smoke. Runs perfectly smooth and normal but temp is still going to red.
Did a compression test afterwards
1-150
2-140
3-150
4-160
5-145
6-150
This was...
I only get the lean code at 250+degrees from overheating i assume. Runs perfectly till then
Im considering doing a head gasket job anyway its only $60 for the felpro kit locally. 4.0 has 174k miles on the original gasket. Havent pulled the trigger on it tho because i have no signs of a bad...
It was just running perfect a week ago so no transmission slips, no odd tail pipe colors, no timing adjustments and no check engine lights. The engine runs perfectly normal and not until 250 degrees idling does it throw a lean code just in last day or so. I haven't been able to drive in several...
1996 jeep cherokee 4.0. Ive only had it 2 weeks. The first week it ran perfect, then one day i noticed the temp gauge creeping up and got it home. Hoses felt swollen like thermostat was stuck changed it first no difference. Here we are now. Ive read all over forums and seen same symptoms but...