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drolston · 12-05-2020, 03:19 PM

Not unusual for a few head bolts to leak for a while after rebuild. Most of the time the leaks will stop themselves, without having to pull the heads. A bottle of Bars Leaks might be worth a try. I just fixed the thermostat housing leak in my wife's 2008 Mustang, for which the dealer wanted $850 to replace a $30 part. Okay, it is a b**ch to get to.

12-05-2020, 03:19 PM	#2
drolston Senior Member Join Date: Jun 2014 Location: Williamsburg, VA Posts: 1,811	Re: Headbolt Not unusual for a few head bolts to leak for a while after rebuild. Most of the time the leaks will stop themselves, without having to pull the heads. A bottle of Bars Leaks might be worth a try. I just fixed the thermostat housing leak in my wife's 2008 Mustang, for which the dealer wanted $850 to replace a $30 part. Okay, it is a b**ch to get to.