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1991 Ford F-150 Boiling Radiator?

Tiny
XJAZZIE
  • MEMBER
  • 1991 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
I noticed that after driving for about 30 minutes the water in the reserve was boiling, I have no idea what could be going wrong with it. Also the idle is very high and I am unable to get it to normal, everyone I've asked has no clue on why it does it.

Thnk you in advance :)
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Tuesday, July 7th, 2009 AT 8:37 PM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Could be related.

The high idle could be caused due to a vaccum leak. Th is will cause it to run lean. A lean running vehicle will run very hot. This can cause it to overheat and boil your water. Check the radiator cap and make sure the fluid is properly mixed.

T-stat could be bad also.
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Tuesday, July 28th, 2009 AT 1:11 PM

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