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Username Post: AC blowing hot        (Topic#353035)
Posts: 1

Age: 30
Loc: Tampa Florida
Reg: 09-05-18
09-16-18 01:34 PM - Post#2746341    

I have a 2015 chevy 1500 LT Z71 40k on it and the ac just started blowing hot, im thinking Freon but not sure there is a green fluid with sliver flakes on the fan and some belts. Any and all info might be helpful before I take it to the dealer

"2nd Year" Silver Supporting Member
Posts: 126
Loc: Portland, OR
Reg: 04-16-13
09-16-18 04:45 PM - Post#2746374    
    In response to Redhead88

These vehicles had a high condenser failure rate. There is a bad weld that causes the problem. I was lucky and mine failed before the warranty was up. It could cost as much as $1000 at the GM dealer. Maybe a private shop would be less expensive.

Super Senior Member
Posts: 14143
Loc: Baltimore, MD
Reg: 11-27-04
09-16-18 07:18 PM - Post#2746390    
    In response to dgstarr

First see if you have pressure in the system. Take the cap off of the high pressure side service port and press on the valve with a small screwdriver. The refrigerant should come out at a rapid rate and the small amount lost if it is still full won’t hurt. Also see if you can tell if the clutch is engaging on the compressor. If the compressor clutch is engaging (the part of the hub outside of the belt and pulley is spinning with the belt), and there is pressure in the system you may have a stuck blend door or defective control switch. Not usual for these years, but possible. The green fluid could be dye from the A/C system, though it would be unusual to be on the engine side of the condenser since it would have to go past the radiator to get there, unless a hose or hard line is leaking. Look for a wet hose or line that might have dye on it as well. If the clutch isn’t engaging but it seems like the system has refrigerant in it, it could be a bad control switch or a bad pressure switch or simply be low on refrigerant.

Friends don’t let friends drive Fords.

1999 Silverado Z71 4X4 extra-cab short bed
1983 Malibu Fauxmad - tubbed
1978 El Camino Kustomized
1972 Monte Carlo
1957 210 handyman wagon
1957 Nomad sport wagon
1957 Cameo Carrier

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