Question about 1988 Volvo 240
Well, it could be a clogged radiator, stuck thermostat, bogus fan clutchbut it is disconcerting that it heats up at highway speeds and cools down when slowing down. This really sounds like a blown head gasket to me. Combustion gas is seeping into the coolant and overheating it. I would have a reliable shop check your coolant for the prescence of carbon monoxide. They can check it w/ a simple test kit. There should be no CO in the coolant.
Posted on Apr 21, 2009
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Posted on Jan 02, 2017
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