Question about 1992 Toyota Pickup

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Truck idles wierd with a/c on

My 1992 toyota pick up runs fine but when i turn on the a/c it starts idleing funny and goes up to about 1500rpm then drops to 700 then back up to 1500 and does this untill i turn the a/c off

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Your a/c coolant may be getting low causing the compressor to cut on and off.

Posted on Jun 05, 2009

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In this series of truck they used an idle up solenoid mounted on the side of the carb and is controlled by a vacume switch. If the idle setting is too high the cut out switch will shut off vacume and idle drops and goes up again because it is too low for the load. This will go indefinitly till you have the idle set down on idle solenoid screw.this is basicaly a very easy job if you know where the screw is. Dont set wrong one

Posted on Jun 02, 2009

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These details will help.

Thanks.

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1 Answer

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