A/C Compressor Replacement

[EVH5150]

Last month the clutch on the compressor siezed up while running the controls on defrost. So for now I disconnected the electrical connection to the clutch so I can still run defrost. Anyhow what would a new compressor cost and what's involved in changing one. Would like to change it this spring before it gets too warm
BTW, it's a 94 Caravan with a 3.0 liter motor. Thanks

[EVH5150]

Thanks for the help. That's exactly why I want to do it myself. I dont want to pour a grand into an 11 year old van. Unfortunately that's what we have to live with. It's a good van with the exception of the compressor. Thanks again.

[dramey_2004]

You can install it yourself on that there should be 2 service ports on top of the compressor on the low side in and high side out if so you can tightin those all the way in witch will shut off the lines from leaking out and you can swap it out fairly easy.

[A. Souphound]

Originally Posted by evictor

When I read your post, I had to look to make sure that I did not post it. I had the exact same problem with a 1997 caravan. I have checked around the WEB and found that prices for the compressor range from $150 to $400.00 depending if you want new or re-built. I still have to call and see what the cost would be to have a local shop recover the Refridgerant before I swap out the compressor and then what they would charge to evacuate the system and recharge it. My guess is I am going to complete the job myself for under $500.00. The dealer wants over a grand. Access to the compressor is very easy since it is located on the lower front of vehicle. It evens has it’s own V belt so do not have to remove the drive belt.

Good Luck. If anybody has any further tips I would love to hear them.

Just one other thought: EVH5150 said his compressor siezed, bringing in the possibility of metal in the system. If there is a possibility, the system should be flushed to prevent another compressor failure.

[EVH5150]

Originally Posted by A. Souphound

Just one other thought: EVH5150 said his compressor siezed, bringing in the possibility of metal in the system. If there is a possibility, the system should be flushed to prevent another compressor failure.

Well, what started out as a faint high pitched squeal whenever the clutch engaged the compressor while the a/c was on over the summertime. Never thought anything of it. I knew it wasnt the belt that runs to the compressor because when I listened for it I couldn't hear it from the engine compartment, just from inside the van. Then one day, I had the van warming up in the driveway with the defrost on when it gave one big squeal ant the engine died. I started it up and it did the same thing. So I poped the hood and started it up again and thats when I realized The clutch would engage and the belt squealed. Anyhow, enough rambling...
What's the cost of getting the system evacuated and flushed?
Thanks for the info too.

[wafrederick]

Do not get a new a/c compressor,They do not last.Get an used one from a junkyard.My father has more luck with used ones than new ones.The used a/c compressors last longer.Four Seasons makes new a/c compressors and they are junk.

[A. Souphound]

Originally Posted by EVH5150

Well, what started out as a faint high pitched squeal whenever the clutch engaged the compressor while the a/c was on over the summertime. Never thought anything of it. I knew it wasnt the belt that runs to the compressor because when I listened for it I couldn't hear it from the engine compartment, just from inside the van. Then one day, I had the van warming up in the driveway with the defrost on when it gave one big squeal ant the engine died. I started it up and it did the same thing. So I poped the hood and started it up again and thats when I realized The clutch would engage and the belt squealed. Anyhow, enough rambling...
What's the cost of getting the system evacuated and flushed?
Thanks for the info too.

EVH5150,
Sorry, I don't know what it would cost to flush the A/C system at your location. But I would check a couple of things to determine if flushing is necessary. I have heard of the compressor shaft siezing at the clutch and not causing an intermal disintegration of the metal.
I would remove the compressor head, and examine the compressor for damage (metal) or real black sludge. If either exists, it should be flushed.

[beckeja]

Originally Posted by dramey_2004

You can install it yourself on that there should be 2 service ports on top of the compressor on the low side in and high side out if so you can tightin those all the way in witch will shut off the lines from leaking out and you can swap it out fairly easy.

I am getting ready to start this job of replacing my a/c compressor on my Dodge Caravan and after reading your message was intrigued. How do you tightin the service ports down and this will keep the coolant from leaking out? The a/c lines are connected to the compressor and obviously will have to be removed to swap out the compressor. So the service ports must be relatively close to the compressor?

Thanks for the info.