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1994 Ford Explorer Cooling System

Tiny
CASI
  • MEMBER
  • 1994 FORD EXPLORER
  • 6 CYL
  • 2WD
  • MANUAL
  • 15,600 MILES
My 1994 Ford Explorer Sport, 6cyl, 4.0L Pushrod, had oil build up in the radiator. But not in the oil pan. I flushed out the radiator and cleaned out most of the oil. However, now I notice that I have coolent leaking out of the tail pipe. Everyday I have to add some more coolent. I can not drive it for more than 45 to 1 hour before it show its overheating. What do you suggest its causing the problem?
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Tuesday, March 4th, 2008 AT 2:18 PM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Do you see white smoke comming out of the exhuast? If yes, have a block test done, this will detect hydrocarbons from the exhust, in your antifreeze, another test is to use a radiator pressure tester to see how fast pressure builds in the radiator, both these tests will decide if you have a blown head gasket, or cracked head.
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Tuesday, March 4th, 2008 AT 2:28 PM
Tiny
CASI
  • MEMBER
  • 2 POSTS
I did notice white smoke when the truck was over heating. I normally do all my own mechanice work on my truck. How difficult is it to do a block test? And what kind of tools are needed to do it? Thank you.
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Saturday, March 8th, 2008 AT 5:41 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
It's a chemical kit you buy at a parts store, just follow the directions.
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Sunday, March 9th, 2008 AT 8:21 AM

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