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> 2015 Silverado AC issues
trackbird
post May 22 2021, 12:59 AM
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Apparently all of those letters I keep getting in the mail about class action law suits about the 2015 (and similar) Silverado trucks have some merit. My AC isn't cooling (now that the weather is warm) and close inspection revealed a cracked high pressure AC line at the compressor. I figured this out after putting gauges on it and finding 18 psi on the low pressure side (it should be around 35 psi). It seemed to be leaking freon almost as fast as I was putting it in. Ultimately, I ordered new high and low pressure lines (from the compressor and to the compressor), an expansion valve and drier assembly. Add in freon and new belts and I'm looking at about $550 in parts...give or take.

Apparently these trucks are known for compressor issues, high pressure line issues and there's a weld in the condenser that's known to crack. I sprayed soapy water on the condenser and I didn't see any bubbles. Tomorrow, I'll tear it all apart and swap out the lines. I'm hoping this doesn't turn into an all day event....

I've also learned that we now have "stretch fit" belts that don't use an idler pulley. I hadn't run into this before and sadly I didn't find it in time to get the proper tools delivered. However, my neighbor is a former dealer tech and a newly minted Matco dealer. He happened to have a few of the tools GM used to send with new belts, so he gave me a set of those so I can hopefully get the belt on without too much drama.

I'll keep you posted.
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GCrites80s
post May 24 2021, 01:02 AM
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I need to learn how to do this since I don't want to pay an A/C shop to get my IROC's A/C working (getting to old to live without it, hot weather makes me way too tired) for the first time since about 1999, maintain my Colorado's (it's going to turn 10 this fall and is still on the original charge) and if the Civic's going to need charged every 3 years I don't want to have to pay the dealer $350 every time it needs it. But they all take different refrigerants!

I think one of the biggest problems with new cars is that if something does happen to them nobody knows anything about them since they act up so little. Including the dealers. Dealers can fix LSes like MFers by now but if something goes wrong with a new LT none of them have ever seen it before and they have to fly an engineer in (real story) who even then might not know. You get 15 years down the road though and I'll be able fix the damn thing. Dealer training simply can't forsee this stuff because there's no precedent. Like that fix for vapor lock on the carbureted 3rd Gens that GM came up with using some zany contraption after like 5 years of work but now everybody on TGO knows how to fix super easily for $6. I don't remember the details.
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langss
post May 24 2021, 03:49 AM
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QUOTE (GCrites80s @ May 23 2021, 08:02 PM) *
I need to learn how to do this since I don't want to pay an A/C shop to get my IROC's A/C working (getting to old to live without it, hot weather makes me way too tired) for the first time since about 1999, maintain my Colorado's (it's going to turn 10 this fall and is still on the original charge) and if the Civic's going to need charged every 3 years I don't want to have to pay the dealer $350 every time it needs it. But they all take different refrigerants!

I think one of the biggest problems with new cars is that if something does happen to them nobody knows anything about them since they act up so little. Including the dealers. Dealers can fix LSes like MFers by now but if something goes wrong with a new LT none of them have ever seen it before and they have to fly an engineer in (real story) who even then might not know. You get 15 years down the road though and I'll be able fix the damn thing. Dealer training simply can't forsee this stuff because there's no precedent. Like that fix for vapor lock on the carbureted 3rd Gens that GM came up with using some zany contraption after like 5 years of work but now everybody on TGO knows how to fix super easily for $6. I don't remember the details.

Funny you mention the 3rd Gens.... I got my 84 Z28 HO in November of 83 spent all of January 84 at the Dealer for Warranty repair. One of my buddies down at work picked up his 84 Z28 HO just before Christmas, so the two cars are only about a 1000 S/N's apart. He gets a recall notice for the Vapor Lock problem, they have his car about a month. The fix was an Electric Fuel Pump in the tank, and a relocated fuel line. I inquired and was told my car did not fall into the affected list of S/N's.We both had the exact same bucking and stalling issues. Only difference was mine stopped and his still did it even after the fix. That's some GM engineering right there.....
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Posts in this topic
trackbird   2015 Silverado AC issues   May 22 2021, 12:59 AM
GCrites80s   Ugh, my Civic is charged with the new stuff (R-123...   May 22 2021, 07:28 PM
langss   QUOTE (trackbird @ May 21 2021, 07:59 PM)...   May 23 2021, 04:30 AM
trackbird   I replaced both lines from the compressor, the exp...   May 23 2021, 09:44 PM
GCrites80s   I need to learn how to do this since I don't w...   May 24 2021, 01:02 AM
langss   QUOTE (GCrites80s @ May 23 2021, 08:02 PM...   May 24 2021, 03:49 AM
trackbird   QUOTE (GCrites80s @ May 23 2021, 09:02 PM...   May 25 2021, 01:27 AM
GCrites80s   I hear yard sales have more R12 than you'd thi...   May 25 2021, 04:12 PM
KCG   QUOTE (trackbird @ May 21 2021, 08:59 PM)...   May 25 2021, 08:00 PM
trackbird   QUOTE (KCG @ May 25 2021, 04:00 PM) QUOTE...   May 25 2021, 10:32 PM
GCrites80s   Argh finding a gauge that does all 3 is tough. The...   May 26 2021, 01:29 AM
GCrites80s   So what about this for R-12:https://www.autozone.c...   May 26 2021, 01:38 AM
trackbird   https://www.autozone.com/a-c-charging-and-r...319_...   May 27 2021, 01:01 AM
GCrites80s   I didn't think about the contamination possibi...   May 27 2021, 01:22 AM
trackbird   QUOTE (GCrites80s @ May 26 2021, 09:22 PM...   May 28 2021, 01:41 AM
CrashTestDummy   QUOTE (GCrites80s @ May 26 2021, 08:22 PM...   Jun 12 2021, 09:46 PM
trackbird   QUOTE (CrashTestDummy @ Jun 12 2021, 05:4...   Jun 13 2021, 12:10 AM
GCrites80s   Gotcha. I'll look for that style.   May 28 2021, 02:36 PM
Eredin   I had a 16 Sierra and got tired of the payment and...   Jun 30 2021, 01:13 AM
trackbird   QUOTE (Eredin @ Jun 29 2021, 09:13 PM) I ...   Jun 30 2021, 01:45 AM
Eredin   QUOTE (trackbird @ Jun 29 2021, 08:45 PM)...   Jul 2 2021, 01:04 AM

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