Temp still rising

Asked by Feb 22, 2017 at 05:51 PM about the 1999 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

I changed the thermostat in my 99 Jeep Grand
Cherokee Laredo 4.0L & my temp gauge is still
raising plus no hot air when I run the heat. Coolant
low light doesn't come on anymore & I flushed the
old antifreeze during the thermostat repair &
replaced it with fresh fluid. HELP ME PLEASE!!! I
need my Jeep working

2 Answers

COUPLE THINGS, THE WATER PUMP MIGHT NOT BE PUMPING COOLANT THROUGH THE ENGINE ANYMORE. WITH NEWER VEHICLES THE PROPELLERS ARE MADE OF PLASTIC AND THEY STOP WORKING AFTER A WHILE. NEXT, CHECK TO MAKE SURE YOUR FANS ARE COMING ON. LASTLY, IF YOUR VEHICLE HAS ONE...A COOLANT TEMPERATURE SENSOR.

86,945

All what Atuminaro says above is true, but after a coolant flush & thermostat change, you would need to purge the coolant system from air pockets. Check this video out.... youtube.com/watch?v=xeTgmdRkQtY

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