toyotar alpharad idling 1000rpm,and then air condition switch on rpm go down to 500rpm and engine dies...please answer...how to repair?
Jun 10, 2012 at 3:38 AM
when aircond is on, engine dies
2000 TOYOTA 4RUNNER
MR.YAR.PINE.THU
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BET IT DIES IN "DEFROST MODE" TOO!
USING YOUR FINGERS AND THE ENGINE OFF!!!! SEE IF THE INNERMOST PART OF THE COMPRESSOR PULLEY WILL FREELY TURN.....IF IT DOES NOT, THE COMPRESSOR IS LOCKED UP
.....OR YOU CAN WATCH THE COMPRESSOR PULLEY WITH THE ENGINE RUNNING, WHILE YOUR BUDDY TURNS ON THE A/C---SEE IF THE PULLEY STOPS TURNING---AGAIN, IF THE PULLEY STOPS, THE COMPRESSOR IS TOAST
WHAT HAPPENS?
THE MEDIC
USING YOUR FINGERS AND THE ENGINE OFF!!!! SEE IF THE INNERMOST PART OF THE COMPRESSOR PULLEY WILL FREELY TURN.....IF IT DOES NOT, THE COMPRESSOR IS LOCKED UP
.....OR YOU CAN WATCH THE COMPRESSOR PULLEY WITH THE ENGINE RUNNING, WHILE YOUR BUDDY TURNS ON THE A/C---SEE IF THE PULLEY STOPS TURNING---AGAIN, IF THE PULLEY STOPS, THE COMPRESSOR IS TOAST
WHAT HAPPENS?
THE MEDIC
Jun 10, 2012 at 3:58 AM
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Could be the compressor JF and also an idle up solenoid malfunctioning not increasing the idle speed to compensate for the additional electrical load on the compressor-we wait and see
Jun 10, 2012 at 4:17 AM
Is the MIL indicating? Seems the idle control systenm is not working correctly. The idling speed at operating temperature should be around 700 with or without A/C.
Misfiring or a non performing cylinder can result in that as well.
Misfiring or a non performing cylinder can result in that as well.
Jun 10, 2012 at 12:03 PM