i have a cadillac with a northstar engine 1997 deville but my head gaskets are bad. and have (coolant to oil) how can i clean the engine. those heal.a.seal works on fixing bad heads if not, is there any thing that will work. with out paying $2,500 for the work.
Nope! Shell out the cash to have it done. Well, you could remove the heads yourself and just take them to a machine shop. That would save you some scratch. Make sure you drain your oil and replace it with new and do so again after about 100 miles of driving. Keep flushing the oil system until your oil is clean.
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