1993 Mercury Cougar Repair Question
Asked on December 21, 2008
1993 Mercury Cougar 1993 mercuary Issues
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
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
Answer
Replied on December 21, 2008
Hissing noise indicates vacuum leak. Check vacuum hoses for any signs of leaks. Replace thermo..