Jeff1
NAXJA Forum User
- Location
- New Palestine, IN
I recently installed a new thermostat in my 95 xj with a 4.0. The temp climbed steadily to 195 at idle, and then sharply dropped to about 150, then steadily climbed up to 195...then dropped again, then climbs up again, then drops again. It keeps doing this regardless of whether I'm at idle or driving. My first hunch after searching here was air in the system. Is this possible in an open system? I thought any air in the coolant system would bleed off itself. I did install the thermo correctly. (the little bleed hole at 12 o'clock.)
Could my thermo be cycling like this? opening..closing...opening ...closing.? I have a three core radiator, a high flow pump from Flowcooler, and I used a 50/50 mix of antifreeze. I wouldn't think i could be cooling thsi rapidly.
Could this cause me to go from open loop to closed loop on and off with the temp fluctuation like this? The gauge didn't do this before I changed the thermo.
It may not be doing any harm...but its driving me nuts watching it go up down up down all the time...
Any suggestions??
Could my thermo be cycling like this? opening..closing...opening ...closing.? I have a three core radiator, a high flow pump from Flowcooler, and I used a 50/50 mix of antifreeze. I wouldn't think i could be cooling thsi rapidly.
Could this cause me to go from open loop to closed loop on and off with the temp fluctuation like this? The gauge didn't do this before I changed the thermo.
It may not be doing any harm...but its driving me nuts watching it go up down up down all the time...
Any suggestions??