Question about 2004 Pontiac Vibe
I started my car this morning and I heard a clicking noise under the dash on the passenger side. I thought maybe it had something to do with the fan blower but even when i shut it off i can still here it. I watched all the guages and everything else seems to be ok. I even checked the windshield wipers thinking it may have something to do with that. what could this be?
Turn the fresh air/ recycled air switch on and off and see if it goes away. Most likely it's that controller.
Posted on Apr 16, 2009
There is a servo that opens and closes an air valve in the heating system. It's a two wire connection and presumably the only way the computer knows when the valve is open or closed is to sense high (stall) current in the servo motor. This is a poor design because it stresses a plastic secondary gear in the servo and can cause a couple teeth to break off. Now the gears skip (making the clicking sound) and the motor never stalls so computer never shuts it off and the clicking continues. It's an expensive part (of course) but I fixed mine by reversing the secondary gear so that the bad section is never encountered in the 180 degree travel. To find it, take off the glove box and it'll be right on the left side under there.
Posted on Apr 26, 2015
Most likely the fuel pump relay making noise
Posted on Jan 31, 2009
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