Think I found a solution. When I replaced my thermostat last week I did run the heat with the radiator cap off for 5 minutes, but I didn't run the a.c.
I decided to run both again and a lot of air bubbles came out (along with almost a gallon of coolent).
Anyways, I left the car cool off for...
I have the same issue with my 2001 Jeep Cherokee.
The radiator is brand new. The thermostat is brand new.
When I accelerate the thermostat gauge drops from 195 to about 130/140. Then when I come to a complete stop it goes back up to normal.
Any suggestions on what the problem could be...