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1999 Ford F-150

Tiny
WWYD2003
  • MEMBER
  • 1999 FORD F-150
Engine Cooling problem
1999 Ford F150 V8 Two Wheel Drive Automatic

Engine is overheating but already replaced the radiator and took out the thermistat and the water punp isn't leaking and also if I take off the radaitor cap it doesn't overheat only with it on.?
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Thursday, August 19th, 2010 AT 7:00 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
It should have the t-stat replaced. Sometimes it allows the coolant to flow too fast and not have a chance to cool. However, what concerns me it the fact that it doesn't overheat with the cap on. Have you checked for a possible headgasket problem?
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Thursday, August 19th, 2010 AT 8:37 PM

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