MERCUARY ISSUES

1993 Mercury Cougar

Tiny

jkrich14

December, 21, 2008 AT 11:24 PM

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

FOUND 4982 RELATED QUESTIONS

No Heat

37 ANSWERS
5 IMAGES

1 Answer

Tiny

bluelightnin6

December, 21, 2008 AT 11:29 PM

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

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