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2003 Ford F-150

Tiny
VTMEHO
  • MEMBER
  • 2003 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 52,342 MILES
Hello heres my question somtimes my truck over heats and does not blow heat and goes in to limp mode then I shut it off and wait about 2 mins and restart my truck and the over heat light goes off and I still have no heat then I put the truck in neutral and rev the engin a few times and then I have heat also in the am when I go warm it up it fun for 10 to 15 mins and I have no heat then I drive it and it and then it over heats my service light comes on when I look it up it says over heat sencer indecated it over heated. I replace the thermastate and radator and cap brought it to a ford dealer and they dont know what and why it happens any help would be great thank you and have a great day emilio ps truck has a 4.6 v8
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Thursday, January 27th, 2011 AT 10:02 PM

1 Reply

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
The cooling system may have a slight clog, it could be in the radiator or heater core. What I would do is drain the system with the engine cold and disconnect a heater core hose and back flush the system. Kits are available at most automotive stores. If the truck is heating up ther possibly be a clog in the heater core or it might have a vapor lock.
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Wednesday, March 2nd, 2011 AT 4:15 PM

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