Hi,
I tried searching for this but didn't really come up with much.
I've got a 2001 LHS with 180,000 miles. i changed the water pump/timing belt after i got the car at about 160,000 miles as it was not done at 100k.
A while back i had a coolant leak at the thermostat housing due to the gasket deteriorating so it was no big deal and i just replaced it myself. Previous to that the car would warm up just fine.
Then i noticed the car was not warming up (its winter and about 20 degrees or colder at the time). The temp gauge would show no increase in temp. brrrrrr
i suspected the thermostat may have failed in a stuck open state - which it was when i replaced it about a week ago.
Now i get maybe one line up in the temp gauge - scan gauge shows a reading of about 160 degrees and thats after an hour of driving on the highway. Also the temp gauge would jump up to nearly normal temp randomly, and the heat inside the car would come and go as well......
so i thought maybe i didnt bleed all of the air out of the system, i bled it again and there really wasn't much air.
At this point im not sure what to do. Maybe i happened to get a faulty thermostat?
Let me know if you have any ideas!
Thanks,
Josh