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Technical Discussion Forum For the discussion of technical questions about Professional Cars and their repair and maintenance. Posting in this forum is limited to PCS Members and / or Site Supporters. We encourage all website users to become members of the Professional Car Society and / or become Site Supporter.

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  #11  
Old 11-19-2018, 12:50 PM
Steve Loftin Steve Loftin is offline
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Vacuum hoses were checked first and found to be good.

We've had no luck finding the individual replacement components. The garage I use did a nationwide GM parts search and found three NOS complete climate control units, priced at around $400, $535, and $1,000. We missed the least expensive one, so I but the bullet and ordered the $535-ish unit (plus labor; from somewhere in Washington). It comes with a 30-day warranty, so I hope it works.

I only plan to do this once. If this one fails, I just won't drive the car in cold weather--OR--I'll use the old "golf tee to plug the vacuum hose" method of switching from A/C to heat.
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Old 11-19-2018, 01:21 PM
Peter Grave Peter Grave is offline
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Will be interesting to see if control is the problem. Glad its returnable move quick when you get it.
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  #13  
Old 11-19-2018, 10:23 PM
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You get it and it works I'll got your old one from you. Maybe i can make one out of two.
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Old 11-26-2018, 09:38 PM
Steve Loftin Steve Loftin is offline
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Quote:
Originally Posted by Steve Loftin View Post
The garage I use did a nationwide GM parts search and found three NOS complete climate control units, priced at around $400, $535, and $1,000. We missed the least expensive one, so I but the bullet and ordered the $535-ish unit (plus labor; from somewhere in Washington). It comes with a 30-day warranty, so I hope it works.
There are actually two of these NOS complete units available at the middle price--$518, actually (plus shipping). Is anyone here interested in the second one?
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Old 11-26-2018, 09:40 PM
Steve Loftin Steve Loftin is offline
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The shop I'm using has been in business since 1959. The current owner started working there (for his father, the founder) when he was 13.

Here's what they are using to diagnose and repair the climate control system:
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Old 11-27-2018, 07:20 AM
Paul Steinberg Paul Steinberg is offline
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Old 11-27-2018, 07:25 AM
Paul Steinberg Paul Steinberg is offline
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test..............
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Old 11-27-2018, 12:02 PM
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The book is handy. I used the factory service manual on the first one walk threw what should do what to what to get this to do that. Way more complicated the nessary.
This other one up here they bypassed the factory controls pot in a toggle switch to engage the compressor and another one to turn the blower on. The only good thing they did was install a pressure switch to shut off the compressor if it gets low. I may never get it stright.
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