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White Elephant 01 8.1 burb.

If I remember correctly, the explanation was that the bump stop were progressive or something? They were supposed to give a little after the initial bump.
 
Yeah, I was under the impression they had issues.
Mine rides great, and I've checked the module for codes.
Fingers crossed
 
Yesterday, in 117° ambient, while loading the boat, the ac on 01 wasn't cooling while idling. Just moving 5-10mph in the parking lot made the ac work better, 25-35mph and it was even better.
Check the freon charge this morning and was right on the money for 96° 55 and 250. So that leaves air flow on the condenser. Fan clutch is unknown age, but I certainly can hear it while towing uphill in the heat, coolant temp runs a rock solid 205. Whole cooling system, except fan clutch is new July 22, AC, compressor, condenser, and accumulator new June 23.
Before I lay out a $100 on a new gm clutch, I am going to remove this aftermarket grill insert.
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These may be cool and look good in Ca, am thinking in AZ the air restriction might too much. Will post my findings.
 
My e-fan subs cool better at standstill than my clutch fan one does. You need a clutch that makes the fan loud at idle. I find that kind of obnoxious, but at 117, it's a no-stone-left-unturned kind of thing, I suppose.
 
If I was a regular in 100+ temps I'd get rid of the clutch all together and go solid mount fan.
 
Yesterday, in 117° ambient, while loading the boat, the ac on 01 wasn't cooling while idling. Just moving 5-10mph in the parking lot made the ac work better, 25-35mph and it was even better.
Check the freon charge this morning and was right on the money for 96° 55 and 250. So that leaves air flow on the condenser. Fan clutch is unknown age, but I certainly can hear it while towing uphill in the heat, coolant temp runs a rock solid 205. Whole cooling system, except fan clutch is new July 22, AC, compressor, condenser, and accumulator new June 23.
Before I lay out a $100 on a new gm clutch, I am going to remove this aftermarket grill insert.
View attachment 482003

These may be cool and look good in Ca, am thinking in AZ the air restriction might too much. Will post my findings.
Most of my cars are having this problem right now, all but the ones the have e fans.
I still prefer the engine driven fans for all around but an additional e fan should be part of the solution for me
 
Update remove the aftermarket grill accent piece
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blew some of the bugs off the condenser
20240725_110412.jpg

Went and put the boat in storage, seemed a little better but not good enough.
Going to do a stock replacement fan clutch. Current clutch has some resistance, won't spin a whole rev when given a quick push by hand.
If the ac still won't cool at an extended stop then it'll get an electric pusher fan on the condenser.

20240725_105127.jpg
 
Can you see any excessive fibers and dirt stuck in the front of the radiator? I know that you aren't having engine cooling problems, I am thinking about the reduced airflow through the condenser at idle from the junk in the radiator fins.
I have found that quite often the cotton like fibers collect in the front of the radiator more than in the condenser.
 
Can you get a heavy duty version? That would probably help.
 
Radiator was clean there is @1" between the condenser and rad. I went a head and blew off the rad from between and from shroud, with my custom made OSHA approval denied air blower.
20240725_105135.jpg
 
I'm curious about what you come up w/ as I have a similar problem w/ my 4th gen Camaro. I have 2 e-fans and replaced the motors w/ some gm branded ones. Not much improvement. 35+mph no problem.
 
It's amazing how many radiators/condensers get plugged with dirt out west here. Solved many problems with a good pressure washing.
 
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