Question about 1998 Ford Taurus

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AC works when car is cold but will not start after car is hot. If I leave the car for an hour the AC works again...

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Sounds like either the a/c relay , ON/Off switch or possible a high pressure switch.
All of these can be checked with a voltmeter.
Relay must have B+ going to it and leaving it .
On/off switch when removed from connector and bypassed with jumper wires should turn on system.
High pressure switch should have B+ on both sides of its terminals when system is on.
If your gonna do the diagnosis and repair yourself
you must do these tests when the vehicle is hot and a/c fails to turn on.
If you determine its the high pressure switch. I recommend you farm the job out (unless you have a recovery machine and a set of manifold gauges). It will be safer and cheaper to repair. Good luck.

Posted on May 27, 2010

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Hope this helps, it it does please leave feedback and vote Thank You and Good Luck

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