My dad put a wire from the battery to the switch that plugs into the AC clutch to check the air conditioner. When the wire touched the switch, it got hot and smoked a little. now my Jimmy will not sta

Marvin

• 85242 Answers
• Posted on Jul 25, 2008

SOURCE: air conditioner not cooling

Is 1 of the 2 AC (under the hood) lines cold? if so you may have a blend door problem, that door is in the dash air duct distribution system, it mixes are between the hot heater core and the cold AC evaporater core to give the set or desired air outlet temp, When you turn the defrost on does it blow hot/cold as the lever is moved back and forth? The compressor turning off and on is normal cycling of the system, when it reaches a preset pressure in the low side line, a pressure switch will open and compressor will "cycle off" when the press starts to rise to a preset limit the compressor will "cycle on" and so on. I assume you have an electric bled door, older cars and trucks use a cable operated mechanical door.

SOURCE: Kia Rio - Heater not working fan works but noise coming from fan.

open glove box and make sure that none of the papers from that can get down to blower motor

Joe Lamb

• 463 Answers
• Posted on Mar 28, 2009

SOURCE: my 89 gmc 1500 will not turn over

Did you check your ground wire?If ground is good check to make sure your solenoid wire which is purple usually if it is broke if not get a test light and have someone turn motor over to crank position and check if power there if so more than likely ground problem.If solenoid has no power move to fuses under drivers dash..

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Ronny Bennett Sr.

• 6988 Answers
• Posted on Jun 28, 2009

SOURCE: Fuse is OK but air conditioner doesn't work '94 GMC Yukon.

yes alow presure switch is likely on GM and it could be out of freon ,safe way to tell is to put a set of gauges on it and it will tell by passing the low side switch will just destroy the compressor if it is out of freon

SOURCE: AC trouble

the best way is to take it into an ac shop without a manifold gauge set adding freon is just a guess you have a leak because freon never wears out it just leaks out. also the right way to do it would require having your system vacuumed out for at least 30 min. to get out all the moisture and air.