I have a 2000 Ford Mustang. It recently overheated due to a radiator leak. and i blew
one of my head gaskets. Well my dads been working on it and he has gotten it all
back together. He got a new battery. New head gaskets.and everything. well we have
gotten it started a couple times. but it seems to not want to idle correctly. We had
some milky looking oil on the dipstick on the oil. Is there anything else we can do. He
is thinking i have a cracked block or head. I was trying to see if there could be
anything else we could do before we trash it.?
pressure test the cooling system...see if it leaks down first...
when he had it started the coolant wasn't at all like it had been before.
Didn't you have the heads pressure tested and milled while you had them off? If you didn't chances are high that the gaskets you just replaced are blown again, mating surfaces must be flat and very clean for the head gaskets to seal properly. And if you have aluminium heads it is very critical. After everything is fix properly it may take a few oil changed to get all of the water contaminated oil out of the block.
yea he didn't have that done. so could that be it? we have to replace the gasket again?
As I'm not there to see it for myself, it is hard to make a "yep that's it" diagnosis, but as I stated above the possibilities are very high. If you do decide to do it again make sure to get the heads checked and if they aren't cracked have them milled. While the heads are off look at the cylinders bore closely, any bluing color is bad, and look for any small cracks. If you locate any of those then the engine needs replaced.
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