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Why is my car hissing of steam out of the radiator?

Tiny
JOEDALFONSO
  • MEMBER
  • 1966 FORD MUSTANG
  • 59,000 MILES
. Overflow when the temp is not high? Also my oil pressure drops when the engine warms up.

- car takes 3 or 4 tries to get idling
- once idling, idles a little rough but not for long ( 30-60 sec. Of high reving)
- when heat gets to norm. It idles fine, starts to steam from hose of rad overflow, temp does not go up, and the oil pressure drops.
-oil pressure very slow to drop.
-oil pressure gauge on the dash shows pressure dropping
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Monday, April 2nd, 2012 AT 6:48 PM

4 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Is temp gauge working right? Is radiator cap good? What oil do you use?
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Monday, April 2nd, 2012 AT 7:15 PM
Tiny
JOEDALFONSO
  • MEMBER
  • 3 POSTS
Gauge works fine. I think it's the rad cap. I think I use 5W-30 oil( I just bought it), which kind should I use for this make and model?
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Monday, April 2nd, 2012 AT 7:43 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Wrong oil for that older engine. I'd use 10-40 or 20-50 depending how hot a climate your in. If hotter 20-50
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Tuesday, April 3rd, 2012 AT 3:20 AM
Tiny
JOEDALFONSO
  • MEMBER
  • 3 POSTS
Thanks
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Tuesday, April 3rd, 2012 AT 6:50 AM

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