Aircon on....motor dies AU3

[kcej]

I have an AU3 wagon and when you turn the aircon on, the motor dies...its almost like theres an electrical short in the aircon that robs the engine of spark without blowing a fuse.
Before we realised the connection between the two, there was a burning smell on one occasion when it happened, as if there were wires overheating and melting the insulation.
Can anyone suggest a possible cause/ place to look first?

[ayeyew]

Alternator or ISC would be my guess

[bodes-sh]

unplug the a/c clutch and see if it still does it...? it is a 2 pin plug in the side of the a/c pump. the compressor may be cactus and seizing up?

[EvilChief]

edit: never mind ...

electrical burning is very destintive in it smell, it really bites ur nose.

doe steh car die also if u hold the revs up and turn teh AC on?

[kcej]

Thanks guys, I'll try your suggestions and see what happens and post the answers

[aye you]

describe cuts out, does the engine seem to struggle and then die, almost like stalling, or just cuts out entirely?

[kcej]

Originally Posted by aye you

describe cuts out, does the engine seem to struggle and then die, almost like stalling, or just cuts out entirely?

From memory I think it was more of a struggle, but hard to tell as driving at the time......will try it in neutral tomorrow morning and report

[Mr Hardware]

idle up solenoid gone?

[kcej]

Problem is solved thanks

Compressor was seized, When aircon was turned on, clutch engaged, locked pulley, belt screamed to a halt and stopped the engine.....

Smell must have been belt burning the one time I did it at revs and engine didn't stall immediately.......all other times it was at idle and motor stopped.

I've removed the wiring plug to avoid mishaps in the short term, but will fit a new compressor soon.

Thanks again guys