I recently in the last few days replaced the entire ac system Dryer,Hoses Condenser, Compressor..all new high and low switches put the correct amount of pag 46(8oz) in system and a new orifice tube. Vacced down for two hours and its sat for 1 hour everything sealed great all new o rings with Nylog lubricant, System would only take about about 27 ounces of the 134a the sticker on cowl says.Compressor will not engage. How do you jump compressor. My gauge readings are about 150 on High port the low pressure gauge shows about or near 3/4 around the dial. Any ideas?

 

did compressor come with new clutch?

 

Everything is new flushed evap good alos and blew out with air. and let dry Going to go over all fuses and relaysonce again Is there just two fuses or some say there are as many as 5? 2004 fx4 5,4.

 

hmmm. So when you turn, A/C on, clutch will not engage correct?

 

there is a 2 prong plug on either the hi or low side...cant remember but, up-plug it and jump the 2 pins...your compressor should kick on.

 

Oaky as I have stated the compressor will not engage. Both Hi and low are screw in with prongs sp which one is jumped the high or low? How many fuses and re;ays/

 

yes

 

Okay if I jump it and it turns on where should I look for problem the switch?

 

may need a kick start to get the rest of the required Freon in.

 

low freon or pressure switch could be bad