1998 Ford F-150 Repair Question
Asked on November 28, 2011
Can you tell me what would make the temp. gauge rise when i hit the gas but fall when i let off. i have a ford f150 w/ v6 4.2
I can let it idle for ever and it wont run hot. if i drive it once i get over 35mph the gauge starts going up but when i let off the gas it goes back down.
Asked by chrshuckabyAnswer
Replied on November 28, 2011
cold be a bad sender or a bad ground. make sure the coolant level i s full as well.
Replied on November 28, 2011
if the sensor is bad, could i just be getting a wrong reading or is the engine really running hot. it never does steam up or boil.
Replied on November 28, 2011
i thinkit would be a wrong reading. some of these sensors if you have the worn gmix of antifreeze screw up their readings. I doubt the engien is running hot , if it was it would be low on power and other indications. The only thing i can think of other than that would be a water pump impeller is slipping on the shaft whe speeding up. you can always manually check your temp while running at idle as well.