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A/C Compressor Shim Fix: Bread Clip

Let’s talk A/C Compressor Shim Fix

breadclipSo, I am fairly sure my car is having an issue with the compressor disengaging and then not re-engaging when it should. I am not sure if anyone else has heard about the bread clip shim fix, but I am planning to try that this weekend. My main question, what tool would I use to measure the clutch gap? I have seen that the correct gap should be around .3 -.4 mm. I don’t have anything to measure that and was just wondering what I would need to pick up. Would a spark plug gap tool work or do I need something else?

2000 S70 – Question about A/C compressor shim fix

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I shimmied mine using a hack saw blade. I broke off 3 pieces about 1″ long clamped the clutch and pushed them in with my fingers between the 2 bolts. I revved my engine to about 3500 rpms and it doesn’t look like they will come out. If they do I will apply some adhesive but at this time all is working well.

Liz Hough says:

My AC works like a freezer when you first turn it on and then it goes down to warm air blowing.

Sean, did you follow the link below the post? It goes to the Volvo Forum where there are four pages — currently 45 posts — of Q and A on this shim fix. Here’s the forum AC Shim Fix link in case you missed it above.

sean borner says:

I am looking for detailed instructions on the bread clip or zip tie fix! I have the same issue on 98 V70 wagon. Cold air blows great and turns to warm air…..turn it off for 3 mins and cold air again!

Esivik, having the same issue with my 2001 V70XC, What is the ziptie fix and where can I find the instructions on how to do this repair.

Thank you

I was having the same problem with AC compressior on/off with the loss of cold air. I followed the threads and determined I could shim clutch plate out, I used zipties, just seemed easier and now I have cold air again, really pretty simple, 1 hour turn around. This was done on a 2001 v70cx.

I have a 1998 S 70, and was having the same problems. After some research, figured I will try the bread clip trick, and what do you know! It works! I also found some pictures of someone who used zip-ties; so I used both.

Guy Pearson says:

Before any shimming try measuring the voltage to the clutch coil. I have fixed three 850’s with the problem by wiring a relay that provides a solid 12v to coil triggered by the clutch wire. I found that the coils where only getting 8-9 volts. All three are still working fine after a year or so.

Got the exact same car, v70 xc 185k miles, and the same ac problem. Volvo mechanic told me I might need a new ac compressor / clutch. would be $1200 installed.
Curious to know what you did to fix it?

Hi –

2002 Volvo V70 XC, A/C sometimes works for a few minutes, but begins to switch to warm air. I do not think it’s the R134a, and I’ve seen people talk about a shim??

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