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‘05 1500 4.7 AC clutch fried

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Old 08-12-2018, 01:15 PM
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Default ‘05 1500 4.7 AC clutch fried



Went for a haircut (4-5 miles from home). Left the place and about 2 miles up the road I thought I smelled an electrical fire smell. Didn’t see any smoke, so thought it was another vehicle. Then I noticed the AC flow was warming up.

Got home and popped the hood and smelled the odor strongly. I noticed something black spattered on the alternator, which I assume is melted plastic. The pulley was still spinning by the serpentine belt, and I can spin the clutch by hand.

I know the clutch needs to be replaced. Do you think that’s wise, or ahould I have the system evacuated and just replace the entire compressor? It’s the stock unit- almost 174K miles.
 
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Old 08-12-2018, 01:20 PM
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I would be tempted to replace the whole unit.....
 
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Old 08-12-2018, 01:25 PM
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I am tempted, but after dropping big $$$ on timing chain and cover, rear end rebuild, water pump, fan clutch, U-joints, L & R front wheel hubs (and one or two things I can’t recall), I would rather spend less than $100 on replacing the clutch. I just have a nagging feeling it’s a band-aid, but a cimpressor, accumulator and evac/recharge is a little $$$ compared to just a clutch.

Ever see one fry like that?
 
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Old 08-12-2018, 03:37 PM
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Likely the coil shorted, and melted. You *might* be able to get away with just the clutch. Keep ya goin' for a little while at any rate. I will grant, that's a lot cheaper than a compressor, etc...... It's a gamble though. Compressor might be bad already, or, it might last another 175K miles.
 
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Old 08-12-2018, 03:49 PM
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Any idea where to locate one? I’m not finding anything on the Internet. I see up to 2002 and then I think from 2008 & up.
 
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Old 08-12-2018, 05:11 PM
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Get the make/model off your compressor, and go to the manufacturers site. If nothing else, you should be able to at least get a part number, and you can then search on that.
 
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Old 08-12-2018, 06:14 PM
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It's a Denso 10S17E. Found one for $137 and change. Not too many options.
 
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Old 08-12-2018, 06:17 PM
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Hopefully that'll take care of it for a few years. You can rent the tools to remove/install the clutch at your local parts store.
 
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Old 08-12-2018, 07:26 PM
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I made my own to hold it so the nut can be removed. I just had it off months ago to replace the pulley bearing.
 
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Old 08-18-2018, 11:55 AM
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Default Simple job...not so simple

Went to rem & repl the clutch this morning. Removed the bolt and hub easily. The snap ring for the pulley was full of burnt clutch. It was a PITA to get off but I finally got the snap ring pliers in the holes and removed it. The pulley took a few taps with a soft-faced hammer and slid off.

Went to remove the coil and saw the compressor shaft was cracked from the 12:00 to 6:00 position at the snap ring groove. So a clutch change is now a new compressor, accumulator, etc..

it was dead in the driveway so had to have it towed. Damn.
 



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