AIR CONDITIONING

1999 Toyota Sienna

Tiny

kohllink

June, 14, 2011 AT 8:32 PM

A/c light blinking. Jumped the compressor 37 psi low and 170 high side. When a/c is engaged with the a/c button the compressor comes on a few seconds then gets overridden by something. Sensor? Or a/c amplifier gone bad? Is here a low pressure sensor that I need to check? Where is it located?

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2 Answers

Tiny

Wrenchtech

June, 14, 2011 AT 11:00 PM

This will not be something you will have much luck finding. The compressor has an RPM sensor that the control head monitors. If the compressor stops or slows down for any reason, the control head will shut the system off. Very difficult to determine what caused it.

Tiny

kohllink

June, 15, 2011 AT 12:10 AM

Is the compressor shot? The rpms do slow down when the compressor is engaged.
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