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Ac Stalls Engine


howudodat

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92 LS400,

if I start the car with AC in auto, the engine starts and immediately stalls.

if I start the car with NO AC, the engine runs fine

if I start the AC after the car is running, the engine stalls

if I hold the RPM's at ~1500 the engine wont stall, but noticeablly loads down

no cold air blows out.

I'm thinking the compressor has gone bad, or frozen and is loading down the system. I wanted to see if anyone else has seen this problem before I invest in a new compressor.

Peter

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I would also advise to NOT turn it on anymore. If it's got so much load resistance on it now to stall the entire engine, then I can only imagine the amount of strain it's putting on all the other components...aka....drive belt and possibly the timing belt.

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