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 35 mph the gauge starts going up but when I let off the gas it goes back down.
Monday, November 28th, 2011 AT 3:20 PM