Rocket Man's 02 Denali Build Thread AKA "THE BEAST"

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Rocket Man

Rocket Man

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F it,ordered the rear off Amazon. It will be here same day as the front. If I don’t need it I’ll return it. Damn, those parts aren’t even listed on the dealer sites with the rest of the ac components, they’re under a separate category called “ ac and heater module assy “ and I still can’t find the rear one listed at all. I ordered a Four Seasons rear evaporator.
 

RAMurphy

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I installed the compressor yesterday and forgot to get a pic. It’s Denso OEM. I’ll have to pull the wheel again to blow the lines out, I’ll get a pic then. The accumulator is Genuine GM OEM. The insulation blanket is pretty rough. The back half isn’t bad so I hit it with brake clean. The front half I ordered from Amazon, 2 day delivery. The one I ordered states it doesn’t fit my truck but I cross referenced the OEM #15074674 with this 15-10614 so I know it’s right.

The front lines will be easy to flush. It’s the rear ones I’m concerned with. I’ve seen videos of guys just blowing them at the firewall and having the fluid come out the return line but I’ll be disconnecting them at the rear and cleaning them separate and cleaning the rear condenser too.

Anyway that’s where I’m at. Next will be flushing the lines and then assembling everything.
@Rocket Man Good call on the Denso, that is the compressor I used to replace my blown OEM compressor. Sounds like you are making good progress.
 

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I have no idea, I didn’t even know what an evaporator was until you mentioned it and I looked it up. I thought the condenser did the heat exchanging. I don’t really know sh*t about AC. Well, I hope I can just flush it. Crap I should probably replace it. Why did you replace yours?
@Rocket Man There was no way I was going to go through the pain of replacing the evaporator. I just spent extra time flushing them out. The lines were easy. I was worried about the evaporator, so I flushed them out both directions. I spent the time to ensure they were dried out completely. Still running and cooling strong after 10 years. Bob
 

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It’s off by 1/4”. I originally had a Spohn adjustable panhard but when I installed a girdle on the rear diff it didn’t clear. I have a QA1 panhard in it now that has a bend where it goes around the diff. The side to side isn’t really noticeable to me.
Man, I can’t find this for the life of me..! I remembered you had a QA1, but cannot find it now..! I figure I need to girdle mine asap or my rear end is going down in an ugly, crackling mess of glory.. can you please share part numbers.?
 
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@Rocket Man There was no way I was going to go through the pain of replacing the evaporator. I just spent extra time flushing them out. The lines were easy. I was worried about the evaporator, so I flushed them out both directions. I spent the time to ensure they were dried out completely. Still running and cooling strong after 10 years. Bob
I was thinking the same, that’s why I ordered them on Amazon. I figure I’ll flush and as long as they seem clear and there’s no debris coming out I’ll be gtg. I just wanted to be covered parts wise. It’s nice when I can find stuff on Amazon that I might need, since they make returns so easy and at no charge for shipping. I just returned a high pressure switch to RA that I ordered wrong ( I wanted the low pressure switch) and shipping cost me $4.50 for a $12 part plus I have to wait until they receive and process it. Amazon credits my account within a couple hours of dropping it off at the shipping place, and there’s no charge for shipping either direction.

Edit: thank you for sharing your experience, it makes me feel a bit better should I decide to just flush them. Your help is appreciated. :)
 
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Rocket Man

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Man, I can’t find this for the life of me..! I remembered you had a QA1, but cannot find it now..! I figure I need to girdle mine asap or my rear end is going down in an ugly, crackling mess of glory.. can you please share part numbers.?
The girdle was a TA Performance TA 1807A. It’s the low profile one and you still need the QA1 5262 panhard bar to make it fit.


 

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I have no idea, I didn’t even know what an evaporator was until you mentioned it and I looked it up. I thought the condenser did the heat exchanging. I don’t really know sh*t about AC. Well, I hope I can just flush it. Crap I should probably replace it. Why did you replace yours?
Had a leak at the solder joint, freon was escaping. Think you gotta take 1/2 the dash apart to replace it. There is a hack, but I doubt you'd want to do it.
 
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Rocket Man

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So I did some disassembling and flushing this morning. Didn’t spend a lot of time on it after my initial flush incident. I started by doing the evaporator and had no idea that it was gonna blast right back at me out the opposing hole with so much force. It hit me in the face and went all over that side of the engine bay. Good news is it looks like a good degreaser but bad news it stings in the eyes. I regrouped and rigged 2 different size drain hoses and finished the evaporator. I blew it out with air afterwards. The fluid has some microscopic silver metal, super fine. It’s coming out clear after the flush.

I started to flush the lines I removed and noticed the evaporator line has been rubbing on the frame for some reason. It’s not leaking and might be ok to reuse but I’d feel better replacing it. It would suck if it started leaking in a year after all I’m doing to the AC. I ordered a new OEM one off Amazon. It won’t be here until Friday so now I have all kinds of time to get this done. :p

My eye is stinging so I’m on break until further notice. ;)

Required compressor pic attached.
 

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RAMurphy

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So I did some disassembling and flushing this morning. Didn’t spend a lot of time on it after my initial flush incident. I started by doing the evaporator and had no idea that it was gonna blast right back at me out the opposing hole with so much force. It hit me in the face and went all over that side of the engine bay. Good news is it looks like a good degreaser but bad news it stings in the eyes. I regrouped and rigged 2 different size drain hoses and finished the evaporator. I blew it out with air afterwards. The fluid has some microscopic silver metal, super fine. It’s coming out clear after the flush.

I started to flush the lines I removed and noticed the evaporator line has been rubbing on the frame for some reason. It’s not leaking and might be ok to reuse but I’d feel better replacing it. It would suck if it started leaking in a year after all I’m doing to the AC. I ordered a new OEM one off Amazon. It won’t be here until Friday so now I have all kinds of time to get this done. :p

My eye is stinging so I’m on break until further notice. ;)

Required compressor pic attached.
Sorry about the slight mishap. That most likely happened to me too, but that was a long time ago and I have forgotten so much in the past ten years. Good luck as you press forward.
 
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Rocket Man

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Great news. Just ensure that you are confident you blew out all the flushing agent and it is dried out. Like I said, I spent extra time on the evaporators.
It will be sitting for a few days waiting on parts so it should dry out especially considering it’s gonna be close to 100 a couple days. I blew it out real good, I have a 25 gallon compressor.
 
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Installed the condenser, perfect fit. There’s so much going on there with the intercooler, condenser, oil cooler and radiator. Good thing the trans cooler got moved down behind the lower bumper opening.
 

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So I did some disassembling and flushing this morning. Didn’t spend a lot of time on it after my initial flush incident. I started by doing the evaporator and had no idea that it was gonna blast right back at me out the opposing hole with so much force. It hit me in the face and went all over that side of the engine bay. Good news is it looks like a good degreaser but bad news it stings in the eyes. I regrouped and rigged 2 different size drain hoses and finished the evaporator. I blew it out with air afterwards. The fluid has some microscopic silver metal, super fine. It’s coming out clear after the flush.

I started to flush the lines I removed and noticed the evaporator line has been rubbing on the frame for some reason. It’s not leaking and might be ok to reuse but I’d feel better replacing it. It would suck if it started leaking in a year after all I’m doing to the AC. I ordered a new OEM one off Amazon. It won’t be here until Friday so now I have all kinds of time to get this done. :p

My eye is stinging so I’m on break until further notice. ;)

Required compressor pic attached.

i ordered the same flush kit, so hopefully ill have just as good of luck

where did you find a green ac belt? are you using the stretch belt or with the tensioner? (i just wanted to match the reg belt not really a huge deal)

ordered new driers for mine (for cab and chiller) and a new orifice tube also...should have prob done so before running with new compressor but o wel
 
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i ordered the same flush kit, so hopefully ill have just as good of luck

where did you find a green ac belt? are you using the stretch belt or with the tensioner? (i just wanted to match the reg belt not really a huge deal)

ordered new driers for mine (for cab and chiller) and a new orifice tube also...should have prob done so before running with new compressor but o wel
Amazon for the belt, it’s a Gates Fleet Runner. I have the tensioner.

And yes I guess they say to use a new accumulator/ dryer if you replace the compressor according to alldata.
 

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Amazon for the belt, it’s a Gates Fleet Runner. I have the tensioner.

And yes I guess they say to use a new accumulator/ dryer if you replace the compressor according to alldata.
ahh thats why, im using stretch belts and couldnt find a greeny to match.

i think im more worried about the drier for the chiller - its been off a few months in garage, but prob still soaked up plenty of moisture into the desiccant
 
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ahh thats why, im using stretch belts and couldnt find a greeny to match.

i think im more worried about the drier for the chiller - its been off a few months in garage, but prob still soaked up plenty of moisture into the desiccant
Yeah if it’s been exposed to the atmosphere then it was done long ago. It doesn’t take long when it has unlimited moisture to suck on. The new one I bought had a vacuum on it. I loosened one of the seals they had on it where it connects and it went “whoosh” so I sealed it back up. It’s gonna be a few days before I install it.
 

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Yeah if it’s been exposed to the atmosphere then it was done long ago. It doesn’t take long when it has unlimited moisture to suck on. The new one I bought had a vacuum on it. I loosened one of the seals they had on it where it connects and it went “whoosh” so I sealed it back up. It’s gonna be a few days before I install it.
yea i need to try and get a part no off it or something, its just a universal one with 3/8 oring fitting in and out, but where its mounted ive got to replace it with one pretty much the exact same size +/- 1/2"
 
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I figured I’d get everything flushed except the line I ordered. Everything was going good until I got to the rear. I looked underneath the rear floor where the lines connect to, I’m assuming, the rear evaporator. I figured I’d just flush everything in place, no sense to disconnect the lines and flush the evaporator separate. So I loaded 3/4 a quart of cleaner, hooked up a hose to the return line to collect in a bucket, and hit the button on the tool. I was ready this time but I was expecting it to come out the return line. It did not. It shot back out of the line I was putting it into. Something is completely blocked. Not sure if it’s the evaporator or the lines but I’ll bet which one it is. I pressure washed that area and removed the nuts holding the lines on. The big one came off. The small one not so much. I shot it with WD and waited a bit, put some vise grips on the block and tried twisting and pulling. Nothing. It’s hot out there so I am on break again. Ill pull the interior panel tomorrow morning and get that line off. Then I’ll figure out wtf is going on. I do have a new evaporator on order if needed. But that line needs to come off. Maybe if it soaks overnight. It’s not an easy spot to get to as far as prying and such.
 

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