4 replies to this topic

[cbpldc]

My wife just called and has taken the 940 Wagon on its maiden voyage after a head gasket repair. She said the head coming out is kind of warm, but not hot, and she's been driving for over 2 hours and hasn't ever gotten really warm. Where should I start? Do I need to flush the heater core, or should I look elsewhere? The car is a non-turbo automatic 1994.

Thanks,
Chris

[cbpldc]

Solved. Turns out the PO removed vacuum from the heater control valve and wired it shut. I simply removed the wire until I get some more daylight to repair it properly.

Chris

[Three Fat Tigers]

IIRC vacuum applied to that valve causes it to close.

[cbpldc]

Or keeps it open. I haven't had time to check out why it was wired shut.

I'll need to look at the vacuum routing. Any info on that?

Chris

[Three Fat Tigers]

The vacuum line is an hard plastic line that runs through a rubber grommet somewhere below the the firewall heater hose connections; from there it goes to the control panel (if you have MCC, manual controls) or to a solenoid valve pack mounted approximately behind the glove box (if you have ECC, electronic controls)