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

1966 FORD MUSTANG
59,000 MILES
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JOEDALFONSO
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  • 3 POSTS
. 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
Apr 2, 2012 at 11:48 AM
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FIXITMR
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is temp gauge working right? is radiator cap good? what oil do you use?
Apr 2, 2012 at 12:15 PM
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JOEDALFONSO
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  • 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?
Apr 2, 2012 at 12:43 PM
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FIXITMR
  • ✓Experienced Mechanic
  • 9,989 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
Apr 2, 2012 at 8:20 PM
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JOEDALFONSO
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Thanks
Apr 2, 2012 at 11:50 PM
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