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1992 Ford Explorer Fluid in Radiator

Tiny
WOLFN69
  • MEMBER
  • 1992 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
I have a Brown fluis in my coolant. There is no oil loss no foam on oil cap. Transmission slips a little. Is this Trans fluid in my radiator, I have no foam on my transmission fluid stick either.
Monday, March 22nd, 2010 AT 6:30 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Is that trans fluid low or contaminated?
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Monday, March 22nd, 2010 AT 7:25 AM
Tiny
WOLFN69
  • MEMBER
  • 2 POSTS
Trans fluid was low, put fix leak in trans and havent had shifting problem since. Just worried about the brown oilly residue in radiator.
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Monday, March 22nd, 2010 AT 9:58 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
The reason I asked about the trans is because the cooler is built into the radiator. I have seen them go bad and cause ATF to mix with the coolant.

As far as it being brown, if it appears there are no leaks, I would recommend having the system flushed. It could be that the coolant is that dirty or a prior owner put a stop leak in it.

Let know what you find.
Joe
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Monday, March 22nd, 2010 AT 10:33 AM

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