Mechanics

MERCUARY ISSUES

1993 Mercury Cougar

Heater problem
1993 Mercury Cougar 6 cyl Two Wheel Drive Automatic

I have a 1993 mercury cougar that runs great but there's a slight problem with the heater. There is none. I really cant figure out what it is but here's the lowdown on what it does

the buttons work ok but the the off button sticks
there is a hissing noise when I turn on the other switches but no heat

the compressor works great

the radiator full and topped off

the thermostat is stuck open

thank you for your time
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Jkrich14
December 21, 2008.




Hissing noise indicates vacuum leak. Check vacuum hoses for any signs of leaks. Replace thermo.

Bluelightnin6
Dec 21, 2008.


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