Clicking In The Dash Of My Chevy Impala

Question: My headlights, tail lights and interior lights flash on and off constantly. I used to be able to pull the light switch on to stop it. Now it does it regardless if light switch is on or off, with a clicking noise under the drivers side dash. Then with car off clicking sound stayed on and drained the buttery overnight? 2001 chevy impala 3.8L.

Answer:
Yes, this is a very common problem on your Impala. You car has a bad Body Control Module(BCM). It is located under the drivers side of the dash. The BCM control all of those lights your are having problems with, along with many other things. You need to have it replaced. Once replaced, it will need to be programmed to your car and have the theft system relearned. I would suggest having this done at the dealer, or a large well equipped shop, since programming cannot be done at most small local shops.

Chevy Impala

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A/C Problem with my 2006 Chevy Impala V6 3.9L.
When I change the temperature of the A/C I hear under the dash it starts to make a loud clicking noise. It starts on one side and moves to the other side. While it is doing this the AC is still blowing cold fine but the noise is very loud. Don't want my battery to go dead.

Answer:
Did this noise just start all of a sudden, or has it been doing since car was new? Is the interior of the car very hot before you turn the A/C on? If the interior is extremely hot then the clicking could just be the fact that the cold air is making things creak. But more likely is a faulty temperature door actuator motor.

Question:
OK my car has standard tansmission shifting. Driving today i went outside and turned my Impala on but the car will not move out of the park gear at all like its stuck in park. Does not matter what gear i put the shifter in. 2007 also with a check engine light.

Answer:
If the shifter will not come out of park, you have a problem with the shift interlock. This system is what prevents shifting from park until you press the brake pedal. This problem may be a shifter solenoid, release solenoid in the steering column or a wiring problem with this circuit. See if you hear a clicking sound when pressing the pedal. If you do then the problem is in the release solenoid on the shifter.

With the check engine light on, you need to have the computer scanned for codes in order to find out what system is having a problem. Without that we cannot be of much help to you yet. Also check all the fuses as a preliminary diagnostic stating point.

Question:
Ok so I recently brought a 2001 Chevy impala and I love it but the a/c and the heater aren't blowing well. I took it to the mechanic and without looking at it he said, if its blowing cold but not hard its the blower motor. With that being said I installed a new blower motor and I fired it up and I had the same problem, so now I'm back to investigating. 2001 Chevy Impala V6. Repairs= Changed the Heater and A/c blower motor and the cabin vents.

The dial that controls the speed works well but I noticed that the dial that changes the direction of airflow doesn't work. The airflow to my feet is good but the airflow through the dash vents are poor. Please help!:( With any advice could you please provide a brief tutorial or something, I'm sort of a DIYer. Thanks so much in advance.

Answer:
Sounds like you have a mode door actuator problem. That can affect the airflow you feel as well. The actuator is bolted to the outside of the heater case and attatches to the mode door that is inside the heater case which control the direction of flow from floor to vent to defrost.

To inspect or repair this actuator, you need to remove the lower dash trim on the left side of the dash. A few 7mm screws and push in clips is all that hold most of it on. Once the lower panels are removed you can get up under there and look to find the actuator/door on the side of the heater case. If you have dual zone temperature control, be sure not to confuse the left side temperature actuator with the mode actuator as they look the same.


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