1997 Mercury Mountaineer No Cold air or Heat

1997 MERCURY MOUNTAINEER
137,000 MILES • V8 • AWD • AUTOMATIC
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MIKE93457
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My vehicle, blows air like normal except that there is no Cold air when the ac is on, also the Compressor doesn't turn on and when you try to have heat, there is no hot air either. What could this problem be? I'm stuck with air blowing, but there's no Cold or Hot air available. Thanks
Oct 3, 2009 at 6:46 PM
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IMPALASS
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Hello –

Let’s check one at a time………….

For the heat…..how is the coolant level………

Is the engine overheating at all……or is it running really cold even after driving for awhile

Have you ever changed the thermostat

With the vehicle at operating temperature, please turn the heater on high and feel the heater hoses going into the firewall…..is one hot and the other cool or not nearly as hot as the other?

Have you put AC gauges on the AC system to see if it is properly charged
May 18, 2017 at 1:13 PM