Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: my thermostat gauge is reading very cool. on 2001 Ford Ranger

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
when it has been running for at least 5 min.then it will suddenly go to hot and the check gage light appears.then i have to turn my heat on to cool it down
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
The first thing to check is to see if it has any coolant in the radiator. If there is no coolant the coolant sensor will not register on the dash gauge. If it's full of coolant I would monitor the thermostat to see when it opens. A sticking thermostat, or one that opens at the wrong time could cause this issue.
Didn't find what you were looking for?