beakman
NAXJA Forum User
- Location
- Rivals, KY
hi all...
I've worked on lots of cars, trucks and even tractors over the years, but I haven't seen this before:
I'm driving down the road in my 98 xj, 4.0 auto tranny, and the temp gauge bottoms out. If I sit at idle for a minute it goes right to normal. I think at least once when I was going up a fairly steep hill (on the highway) it also went to normal. But I didn't see that, I just *think* I saw it falling as I reached the top.
I've seen plenty of vehicles get hot while driving and then cool off when idling, but never the other way around.
I just replaced my AC compressor and let it sit in the driveway idling a while, and even the hood was hot as hell when I shut it off.
Whatcha think? Maybe a bad water pump? Maybe when it sits still, physics takes over and the water circulates well enough for the temp to be right, but at speed it can't keep up with the heat being generated?
I mean, it could be the sensor, I guess. If the sensor is bad then the efan wouldn't come on enough, or at all. I'm going to let it cool and go see how it behaves next.
Thanks in advance!
Oh, and RIP our 99. My wife had a wreck on the interstate a week ago. The wife is fine, but the xj is totaled. The xj gave us 11.5 years and about 300k miles (bought her with only 16k on it). The only mechanical things she ever needed was one radiator, one starter and one alternator in all that time. Thanks for the memory, old girl.
I've worked on lots of cars, trucks and even tractors over the years, but I haven't seen this before:
I'm driving down the road in my 98 xj, 4.0 auto tranny, and the temp gauge bottoms out. If I sit at idle for a minute it goes right to normal. I think at least once when I was going up a fairly steep hill (on the highway) it also went to normal. But I didn't see that, I just *think* I saw it falling as I reached the top.
I've seen plenty of vehicles get hot while driving and then cool off when idling, but never the other way around.
I just replaced my AC compressor and let it sit in the driveway idling a while, and even the hood was hot as hell when I shut it off.
Whatcha think? Maybe a bad water pump? Maybe when it sits still, physics takes over and the water circulates well enough for the temp to be right, but at speed it can't keep up with the heat being generated?
I mean, it could be the sensor, I guess. If the sensor is bad then the efan wouldn't come on enough, or at all. I'm going to let it cool and go see how it behaves next.
Thanks in advance!
Oh, and RIP our 99. My wife had a wreck on the interstate a week ago. The wife is fine, but the xj is totaled. The xj gave us 11.5 years and about 300k miles (bought her with only 16k on it). The only mechanical things she ever needed was one radiator, one starter and one alternator in all that time. Thanks for the memory, old girl.
