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 Blinking Temp

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Yardley
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Age : 58
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PostSubject: Blinking Temp   Wed Jul 05, 2017 7:05 am

The digital readout on my AC/outside temp blinks for about a minute when I start the car. It is a '96 Riv. Also, while that is happening there is a rhythmic squeaking sound coming from behind the center of the dash, like an air door is trying to seal or move.

Any ideas? Normal for a 96?
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stydel311
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Name : Michael
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PostSubject: Re: Blinking Temp   Thu Jul 06, 2017 11:02 pm

Yardley wrote:
The digital readout on my AC/outside temp blinks for about a minute when I start the car. It is a '96 Riv. Also, while that is happening there is a rhythmic squeaking sound coming from behind the center of the dash, like an air door is trying to seal or move.

Any ideas? Normal for a 96?
The blinking indicates there is a fault in the climate control system, what you are hearing is probably that fault. One of the blend door motors is most likely failing.
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IFallsRon
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PostSubject: Re: Blinking Temp   Sat Jul 08, 2017 3:54 pm

The blinking and noise started this week with my 97. The noise started when the temp was warm enough for me to turn down to the lowest setting. If I move the temp from 60 to 65, the noise goes away. The blinking generally stops after a few seconds when the gauge adjust for ambient outdoor temperature.
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stydel311
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PostSubject: Re: Blinking Temp   Sat Jul 08, 2017 11:56 pm

Are you using the climate control on automatic? I leave mine set to 70 most of the time and usually only touch the vent button to run the ac compressor or not.  When the flashing stops is normal, I believe it only flashes for 60 seconds to indicate that there is a trouble code and then goes to normal operation.
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IFallsRon
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PostSubject: Re: Blinking Temp   Sun Jul 09, 2017 8:11 am

stydel311 wrote:
Are you using the climate control on automatic? I leave mine set to 70 most of the time and usually only touch the vent button to run the ac compressor or not.  When the flashing stops is normal, I believe it only flashes for 60 seconds to indicate that there is a trouble code and then goes to normal operation.

I use auto for AC but mostly it is in the off position. When I hit auto, the system goes rock and roll until I can manage temp and fan speed.
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albertj
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PostSubject: Re: Blinking Temp   Mon Jul 10, 2017 8:59 am

Yardley wrote:
The digital readout on my AC/outside temp blinks for about a minute when I start the car. It is a '96 Riv. Also, while that is happening there is a rhythmic squeaking sound coming from behind the center of the dash, like an air door is trying to seal or move.

Any ideas? Normal for a 96?


Is this normal, hmmmmm....?

When I am  trying to figure out if something is normal or not, I think to myself, "if I was buying this car new and it did this during a test drive, would I still consider buying it?"

Albertj

PS: I think this climate control issue is def one for the factory service manual.  I dimly recall some sort of HVAC-self-test-calibration action in the FSM but I don't think this is it.
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