Question about 1966 Ford Mustang

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68 ford mustang

Loses water no leaks no steam no broken hoses.does not run hot wont start whn turnd off needs to be jump started

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Hi there!

This isn't going to be good news Im afraid. These symptoms are typical of head gasket failure.

Head gaskets can fail on one of 3 ways -
#1 Rupture to outside from cylinder - Lots of oil, steam, fire maybe - it's pretty obvious.
#2 Rupture from cylinder into an oilway - You burn lots of oil, blue smoke, lack of power, oil forced out of fillercap, dipstick, air filter gets black.
#3 Rupture from cylinder into coolant channel. You use water - but no leaks under car. White steamy exhaust on starting, Coolant overheats quickly and appears to boil. Inspection of coolant is sometimes oily.

Yours sounds like #3

It probably needs the cylinder head off and the gasket replaced. Quite a time consuming job, but DIY-able with the correct tools.

You can check the compression of the cylinders first just to make sure it is this and not leaks somewhere else -

Check out PetesPonies post on the mustang forum about leaks around the intake manifold. It may be easier to check this first.

Thanks for using Fixya! If it solves your problem, please rate as such. Thank you.

Posted on Jul 03, 2008

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