AC Compressor Problem ???

[97explorersport]

My AC compressor is recycling every 2/3 seconds and makes the idle go up and down. I recently had a AC recharge could there be a leak causing the system failure?? Thanks for any info

[fogetaboutit]

Did you figure this one out yet? My 2001 sport trac is doing the same thing. I had a code p0171 and p0174 found and fixed a vacuum leak didn't resolve the problem. I still have the p0171 code. I re-charged the air condition. That didn't work. It may not be the air compressor. Turning on the air conditioner puts a load on the engine and may be making the real problem more noticable but heck if I can find the problem. Looked at and checked the MAF. Looked at all the vacuum lines I can find. Changed the PCV. I hear horror stories about taking this to the dealer with a p0171 code. The dealer likes to just change parts until they find if they find what the problem was.

[97explorersport]

Originally Posted by fogetaboutit

Did you figure this one out yet? My 2001 sport trac is doing the same thing. I had a code p0171 and p0174 found and fixed a vacuum leak didn't resolve the problem. I still have the p0171 code. I re-charged the air condition. That didn't work. It may not be the air compressor. Turning on the air conditioner puts a load on the engine and may be making the real problem more noticable but heck if I can find the problem. Looked at and checked the MAF. Looked at all the vacuum lines I can find. Changed the PCV. I hear horror stories about taking this to the dealer with a p0171 code. The dealer likes to just change parts until they find if they find what the problem was.

High Pressure switch was bad. Replaced the switch and all is well once again

[bacchus_00]

Originally Posted by 97explorersport

High Pressure switch was bad. Replaced the switch and all is well once again

hi, i have a 98 explorer sport when is cold the a/c works but the compresor clutch works for about 10 secons and then stop to work for another 10 seconds and so on , ...... i change the swith located at the top of accumulator .and the problem still there... is that switch the high pressure switch?
Thanx
german

[shorod]

Have you had the pressures checked in your A/C system to make sure they are where they should be? You could be low on R-134a or overcharged. Start with the basics before replacing parts.

-Rod