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01 Volvo S60 A/C no condensate - compressor cuts off
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comnavguy
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Jun 28, 2011, 12:11 PM
Post #1 of 18
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01 Volvo S60 A/C no condensate - compressor cuts off
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2001 Volvo 2.4T with 153,000 miles blows 40 degrees with Dallas temps 90 - 100 R.H. 50% to 60% until driven a few miles and then the compressor cuts off. Then I turn off all the A/C controls for few minutes and then turn the A/C back on and it blows ice again for another few miles.
Whether sitting still or rolling there is zero condensate coming from the car and there is no dampness on the carpets.
So far the A/C does not cut off if I sit in the car for 10 to 15 minutes idiling.
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Hammer Time
Ultimate Carjunky
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Jun 28, 2011, 12:17 PM
Post #2 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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40 degrees is too cold. You probably have a bad cycling switch.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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comnavguy
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Jun 28, 2011, 8:12 PM
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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Thanks, but it still doesn't make sense. I can sit in the car for a long time with the AC blowing ice UNTIL I start to drive it. Within a couple of blocks it quits. I haven't taken it on the highway to see if it re-starts itself, but I can stop the car, cut it off for a few minutes and upon restart, the AC is blowing cold again and will continue blowing cold until it starts to roll again.
And where is the cycling switch on this car? Please don't tell me it's in the compressor
And I still have zero condensation .
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Hammer Time
Ultimate Carjunky
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Jun 29, 2011, 3:03 AM
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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If it runs that cold without cycling, it will freeze the evaporator.
Turns out your uses a temp sensor in the evaporator. That should be cycling the compressor off if it gets too cold.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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comnavguy
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Jun 30, 2011, 8:27 AM
Post #5 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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OK. I just bought a new, accurate themometer. The temp at the center vent is 48.
I can let the car sit and idle for 20 to 30 minutes and it stays at 48 to 50 with the high side pressure steady at 250 PSI. The OLD book I have calls for Volvo pressures from 406 to 450 PSI, years 95 thru 99. I do not have year 2001.I
The minute I push the RPM above 2000, the compressor cuts off and will not start again until I turn the car off, let it sit for a few minutes and re-start.
I now suspect a defective high pressure switch but can not locate iit in the high line.
Can you tell me where that switch is located so I can replace it?
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Hammer Time
Ultimate Carjunky
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Jun 30, 2011, 11:11 AM
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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No way on the 450. That will just kill a compressor. Even your pressures are a bit on the high side.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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comnavguy
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Jun 30, 2011, 12:36 PM
Post #7 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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Exactly on the pressure, but that's what Haynes has in their manual (doorstop) for years up to 1999. In that same book, years earlier than 95, the highest pressure is 227. I've never seen any pressures on anything going to 400.
So, I still suspect the high pressure cut off switch is defective. I know it's in the high line, but it would be very helpful if you or someone could tell me where and save me from having to remove several shrouds to trace the line.
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Hammer Time
Ultimate Carjunky
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Jun 30, 2011, 1:24 PM
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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I think that they are telling you is the high pressure cutoff is in the 400s. I believe it uses one pressure sensor that reads all pressures and it looks like it's in the liquid line, behind the right front headlamp.
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comnavguy
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Jun 30, 2011, 8:53 PM
Post #9 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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That MUST be it. Volvo is the only car group in the Haynes manual with pressures that high, and only on vehicles from 95 to 99. I'll take the headlight out to see if the sensor is in that area. I hope.
Thanks for everything.
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Hammer Time
Ultimate Carjunky
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Jul 1, 2011, 2:56 AM
Post #10 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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Just follow the line from the condenser.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Jul 1, 2011, 12:28 PM
Post #11 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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Pay attention to HT - he knows what he's doing,
Tom
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comnavguy
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Jul 4, 2011, 7:21 AM
Post #12 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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I put HT in a class by himself. The best.
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Tom Greenleaf
Ultimate Carjunky
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Jul 4, 2011, 10:44 AM
Post #13 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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No argument. Just think for a moment................. we are all volunteers and not paid here! NOT JUST AN AMERICAN SITE BUT GOD BLESS AMERICA. Happy fourth,
Tom
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comnavguy
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Jul 4, 2011, 5:58 PM
Post #14 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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It IS the clutch. Lots of troubleshooting and hair-pulling.
I tapped the clutch with a huge screwdriver and it engaged. Ran the RPM up and the clutch disengaged. Let he engine go back to idle, tapped the clutch again and it engaged.
NEW CLUTCH required.
Thanks guys/gals for all the suggestions and help.
I've never seen a clutch fail in this way. Live'n learn.
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Hammer Time
Ultimate Carjunky
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Jul 4, 2011, 7:06 PM
Post #15 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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Make sure it's not just too much air gap. Sometimes you can move the plate closer and resolve that. It still needs to have clearance.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Jul 4, 2011, 11:27 PM
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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3.5 to 4-5 ohms at clutch it''s - otherwise it's excessive clutch air gap as Hammer said,
Tom
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comnavguy
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Jul 14, 2011, 4:19 AM
Post #17 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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I think this guy is going to buy a new compressor, but can you tell me how to adjust the air gap on compressor clutches? Also, is the 3.5 to 4.5 Ohms the coil resistance?
We're on our 14th straight day of over 100. NEED cool.
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Tom Greenleaf
Ultimate Carjunky
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Jul 14, 2011, 4:31 AM
Post #18 of 18
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Re: 01 Volvo S60 A/C no condensate - compressor cuts off
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If you buy new with clutch (highly recommended) it should be all adjusted but check. Gap is usual in general .020 +/- and your are correct on ohms. Spin oil thru any replacement oil prior to installation, measure what comes out of old one and the condition of it. Follow any suggestions that come with compressor.
I did not re-read the whole thread so your call on if this is a compressor problem or not. Quick re-read of no condensate? Compressor may not be the issue. Go by pressures at the temps. See top post for CHARGING PROCEDURES may help,
T
(This post was edited by Tom Greenleaf on Jul 14, 2011, 4:43 AM)
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