Car started to over heat today.

IHateHacks · 10-02-2007, 09:04 PM

Run a block test to rule out a blown head gasket. Then pressure test the cooling system. Your overheating vehicle will fail one of these 2 tests.

If you really think the thermostat is bad, change it. They are cheap and easy to do on a 7M. Then take the one you took out and boil it in a pot of water and see if it opens, then you will know for sure if the thermostat is bad or not.

A stock cooling system holds about 9 quarts. Its 8.6 for an 87 non turbo 5spd

10-02-2007, 09:04 PM	#6
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Run a block test to rule out a blown head gasket. Then pressure test the cooling system. Your overheating vehicle will fail one of these 2 tests. If you really think the thermostat is bad, change it. They are cheap and easy to do on a 7M. Then take the one you took out and boil it in a pot of water and see if it opens, then you will know for sure if the thermostat is bad or not. A stock cooling system holds about 9 quarts. Its 8.6 for an 87 non turbo 5spd Last edited by IHateHacks; 10-02-2007 at 09:14 PM.