Hey guys i've been having issues with ac compressors. I've had 6 ac compressors on my 06 pickup. It had the factory on that went to crap at about 80k a dodge *********** put on a new one that lasted about 5K ($650), they said it was past 1 month old so it was out of parts warranty. I called a junkyard and got one for $200 (i know not the best place to get a compressor but they had a 1 year replacement warranty). I had to install 3 of these. Since i was putting the used ones on myself, i got to thinking that i wasn't doing something right. So i took the pickup to a good local mechanic and had them flush the system put a new filter dryer and a new compressor on at the end of summer last year. It was about 80 the other day and i tried to kick it on and it doesn't work. I checked the 134a and it's ok. So its going back to get it's 7th compressor installed. It now has 125K.
It's bad enough that if i could get anything out of the pickup in trade i would get rid of the d*mn thing. But since i can't get hardly anything out of it does anyone have any suggestions?
Thanks in advance!

 

I'd say you've got some issues still,

Even flushing properly things can remain. What type of oil are the putting back in the system? Did the first compressor leak or was the failure catastrophic?
I'm asking as if the system has experienced "black death", then you need to replace all the hoses and condensor. R134a systems are less tolerant than R12 and the use of teflon melts in a failure and coats the inside of the system. So, assuming a good flushing- replace or rebuild the hose coming off the compressor. On the suction line, put a screen filter. One caveat here is no way to flush a condensor which is a parrallel flow.

Make sure the system hold a good vacuum. 1hr below 200 microns with the pump off(leave the gauges and sub-micron gauge attached). Then charge the system by weight.
Type of oil and vicosity and total volume per the dodge service instructions.
If the compressor is a sanden- they have good USA techsupport and you might search it or call them for suggestions beyond what I have listed.

Why do you say it's a bad compressor now? What are the pressures ? Temp inside and outside?

Michael