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post #1 of 3 (permalink) Old 08-12-06, 09:23 PM Thread Starter
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Blown head gasket

I am helping a friend with his '97 Crown Vic that apparently has a blown head gasket. I know nothing about Fords and have never even worked on one but I can probably figure it out. Can anyone suggest a DIY guide somewhere on changing head gaskets on these 4.6l V8 engines?
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post #2 of 3 (permalink) Old 08-14-06, 08:20 AM
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Re: Blown head gasket

while its not impossible, it is very unlikely you have a blown headgasket.
what diagnosis has been done? do you have intermix in the radiator or engine oil?

If you have a dead cylinder (engine is skipping/missing) you most likely have a valve train issue. Usually a valve will stick and/or a valve spring will break which causes the cam follower for that valve to "pop" off.

Do a compression or leak down test to isolate the cylinder then pull the valve cover and see whats going on.
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post #3 of 3 (permalink) Old 08-19-06, 08:20 AM
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Re: Blown head gasket

Also check the intake manifold. Is it all black plastic or does it have the updated design with the aluminum crossover?
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