5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

cooling bad

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Old 07-09-2005, 09:42 PM
  #1  
3stangs
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Default cooling bad

here go's my problem.
A month back my waterpump started leaking and I replaced it. The waterpump was only a year old. Now my heatercore is busted and i will be replacing it soon. I've also noticed a brown oilly look in the radiator, but that could be some stuff i put their. Also
my car runs a little warm. I have no oil leaks as far as i can tell but it still useing oil. Their is no water in the oil and the car does not smoke, nock, or rattle. The mustang runs strong and has a set of 410 gears and a tighter tranny ratio. The car is a 94 GT 5.0 . I,m scared something might be wrong with it, maybe i'm just paranoid.

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Old 07-09-2005, 09:49 PM
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stanglx2002
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Default RE: cooling bad

you need to flush the cooling system and put new fluid/water in it and i would upgrade to a 180* thermostat too
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Old 07-09-2005, 09:55 PM
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Default RE: cooling bad

why up to a 180 and not down to a 160.
Thanks I'll try that.
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Old 07-09-2005, 09:56 PM
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Default RE: cooling bad

160 is to low you wont get into closed loop so the lowest you can go is 180
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Old 07-09-2005, 09:58 PM
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Default RE: cooling bad

do you have any ideas about it useing oil?
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Old 07-09-2005, 10:01 PM
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Default RE: cooling bad

what do you mean using oil
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Old 07-09-2005, 10:18 PM
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Default RE: cooling bad

I haft to put a half a quart in a month but I see no oil leaks? Is it possible for a car to use oil that ways. IT turns a lot of RPMs do to the tranny ratio and 410 gears in the rear.
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Old 07-09-2005, 10:30 PM
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Default RE: cooling bad

only use a MR GASKET STAT you can order them from advance auto 8.95 part # 4364

as for the oil first try putting in a new high flow pcv valve and clean the screen...and pull the hose from the valve cover to the throttle body and pull a cap on it..this may help
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Old 07-09-2005, 10:38 PM
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Default RE: cooling bad

thanks I'll try that
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Old 07-09-2005, 11:03 PM
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Default RE: cooling bad

it helped my car so i recommend the same thing
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