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1999 Chevrolet Tahoe Base 2dr

1999 Chevrolet Tahoe
Trim Info:
Rear Wheel Drive, 2 Door
14 mpg city / 18 mpg hwy
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May 22, 2013, 4:55 am

Jim C

Question: How to determine which actuator has gone bad

Recently I have developed a problem with the air conditioner. In the front of the car, the air will initially blow cold on both side of the car through the dash; however, after a point in time, the air on the drivers side will blow hot while the other vents continue to blow cold air. Through some simple research I think there is a problem with one of actuators (of which I think there are five under the dash). Can someone tell me (1) which of the five actuators has gone by, (2) whether it can be reached without taking the dash off, (3) the part number for the actuator and (4) whether or not I used use an OEM as as replacement or if there is a good aftermarket product. Thanks, Jim

May 25, 2013, 12:34 am

Richard W
Expert Mechanic

It's the actuator next to the gas pedal. Real easy to change. But buy the new one from the dealer.

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