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Discussion Starter · #1 ·
Last summer, I blew my hose from the condenser to the compressor. I had it replaced and the AC system recharged and I was back on the road again.<p>At around 70K, the previous owner had the evaporator replaced under warranty.<p>Soon after I had the AC hose replaced, I began having problems with my AC not cooling from time to time when I had it on auto control. If I turned the system off, and then turned it back on, it would cool again. Conversely, if I shut the engine off for a few minutes, it would start cooling again. I took the vehicle back to where I had the AC hose replaced and the AC recharged and they checked for leaks with dye and found none.<p>I know my heater core needs to be replaced shortly as I can smell the anti-freeze from time to time.<p>Now, even though I had my thermostat changed a couple of years ago, when its cool and I turn up my heat, I don't get any heat unless the temp is set to 80 or in the red.<p>Anyone have any ideas where I should start troubleshooting?<p>Dan<br>98 S70 GLT 166K<br>
 

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Re: AC Problem? (usblues007)

Have a dealer/indy check your ECC (electronic climate control) unit for fault codes. You might have a busted cabin temperature sensor that is messing with the ambient air temp.<br>
 

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Re: AC Problem? (850arrrsaylikepirate)

The gap has gotten too wide on your compressor's clutch. <p>It gets hot and can no longer engage itself. Started happening to my car last summer. I removed the shims from the clutch and it was perfect. <p><br>You can either remove the shims from inside the clutch (hard expensive) or use fabbed up clips to actually push the pulley closer to the clutch (easy, ghetto).<p><br>Ghetto: <A HREF="http://volvospeed.com/vs_forum/index.php?showtopic=80181" TARGET="_blank">http://volvospeed.com/vs_forum...80181</A> <p>The "right" way: <A HREF="http://volvoforums.com/forum/showthread.php?t=6665" TARGET="_blank">http://volvoforums.com/forum/showthread.php?t=6665</A> <p>Looks hard, but you can tackle it if you're mechanically inclined and have some patience.
 

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Re: AC Problem? (usblues007)

Thanks everybody for your suggestions. I took my S70 to an import indy shop who told me it was my ECC module and wanted to charge me like $1100. I purchased a used one and that didn't solve my problem either. I bought some feeler gauges and checked my clutch gap which was was more than 0.6mm. I printed off the instructions on removing the clutch and re-shimming and I paid $153 for the labor to another auto repair facility. Everything works great. Nice to have constant cool air. I got $175 back of the $200 I spent for the used ECC module. Usually they don't take back electronic parts.<p>Again, thanks everybody. These message boards save me hundreds of dollars. My S70 GLT is mechanically strong, but the vehicle is only worth about $4,000. It doesn't make sense to go to the dealer or an indy and spend a thousand dollars on sometime of repair anymore.<p>Dan<br>98 S70 168K
 
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