Question about 1991 Volvo 740

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I Do not know what the part im trying to fix is called

Well my Wife's volvo sprung a coolant leak from a black plastic something that looks like a plastic door knob and it is located behind the engine and i don't know what the part is called would you please help me... its hard to get help when you have know clue what your doing...

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If this is on the drivers side back of engine you should be talking about the heater control valve/there should be a small vac line hooked to it/replace the heater hoses to

Posted on Aug 26, 2008

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I have a 1986 240 dl volvo, when i start the car the temp gauge goes right to overheat, after sitting all night, within 3 seconds? what could cause this


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