Reckless

iTrader: (7)

I have installed all new compressor, accumulator, and condensor. The A/C works fine while cruising, but blows warm air at idle. System checks out fine otherwise. Not sure if the idle speed has anything to do with the compressor clutch? It seems fine above 1000-1200 rpm.

Is there anything in the tuning? This has only been a problem since installing the 416 LS3. Before that the a/c was great.

2002_Z28_Six_Speed

iTrader: (20)

Do you have efans?

My AC was crap at idle with the manual fan.

dsmmace

Check the pressure switches.

tgui

My NBS had this issue. The fan clutch was bad. I got this OEM piece from Amazon. AC was perfect after!

Reckless

iTrader: (7)

Sorry I am using F-Body fans with Nelson harness.

Reckless

iTrader: (7)

I'll give this a try. Thanks

tgui

Ahhh ok. NM then!

2002_Z28_Six_Speed

iTrader: (20)

Can you tell if the compressor is cycling when it gets hot. I'd bet not enough pressure, the pressure switches are bad, or tuning issue.

When I installed a cam I had to fumble some of the numbers around to keep the AC on at idle.

MikeGyver

iTrader: (5)

Did you use good refrigeration practices? In other words, pull a good vacuum, purge the air out of your A/C manifold and hoses when charging, and weigh in the correct amount? Had to ask.

Reckless

iTrader: (7)

I used the machine we have at the shop. It's pretty much fool proof

I think it might be the "stall saver" feature in the PCM Idle section of HP Tuners. Going to zero out that area and see what happens. I think it will fix it.