Compressor want engage

DALLAS2300

MEMBER
2006 MERCURY MILAN
120,000 MILES

How do I know when the ac pressure cycling switch is bad (not working) any more I put a new a/c clutch relay fuse in and compressor still want click on but when I take the relay fuse out and bridge slot 30 & 87 the compressor comes on can somebody help me

3 Replies

SATURNTECH9

MECHANIC
30,869 POSTS

I wouldn't jump the compressor like that dangerous. Have you checked the high and low ac pressures?You could be low on charge causing the ac compressor to stay off.

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Sunday, August 21st, 2011 AT 10:36 PM

DALLAS2300

MEMBER
5 POSTS

How do I check the high and low pressure

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Sunday, August 21st, 2011 AT 10:43 PM

SATURNTECH9

MECHANIC
30,869 POSTS

With a ac gauge set it sounds like your pretty green when it comes to ac on cars. Iam not saying that to be mean just concern that you may hurt yourself there is gas under high pressure that could hurt you if you wernt careful or just didnt know. The high low switch also shuts the compressor down because of too high of pressure so jumping to by pass that could hurt or kill you.

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Sunday, August 21st, 2011 AT 10:55 PM