Problem with my 2004 Chevy Impala. Check engine light/Traction Control.New brakes and rotors all around. I got into my car a week ago and turned on the radio after turning on the car and it came on but I have no sound at all. My chimes that indicate low fuel, and seat belts are also affected.

I checked the fuses and breakers to no avail. The connections to the power amp are also intact. As well my traction control light and warning comes on every time I make a right turn and there's a grinding noise when I drive the car over 25 MPH.



Just so i am clear, the radio has a display, you can change stations, see clock, etc, but no sounds That's correct. I looked at all the relays and fuses and everything seems in order.

I was using my blue tooth with the radio for hands free cell phone operation, but that ceased when the system went out. No chimes for seat belts, low fuel or any other alert happens now. HELP !


OK. Then this is either an amp problem, or radio problem.
The audio system controls the chimes also.
You would need to bypass the amp and connect the speaker wires from the radio, to the speaker wires going from amp to the speaker,
to determine if the radio is outputting any sound. The radio sends speaker output to the amp, then the amp sends it to the speakers.


I have a 2005 Chevy Impala. The check engine light is on, a mechanic a work checked and the code that comes up is P0449.


Answer: OK, well, the code is a problem in the evaporative emissions system vent valve solenoid. Either a problem with a bad solenoid, of the circuits that control it. these solenoid valves are quite common to fail, bu the only way to be sure would be to use a scanner that can control the system, and use a test light to test for power and ground. Usually it is a bad solenoid valve.

This part is located attached to the vapor canister, inside the lf. rear fender. Is accessed from under the car.


Be Social With Us !

Leave your comments

Post comment as a guest

    • Guest - chelsea

      I just replaced the battery in my04 impala but the battery light is still on

    • In reply to: Guest - chelsea

      The battery light on your car does not mean the battery is bad, it means the alternator is not charging the battery, so the voltage is low. You need to check the alternator output. Most likely it is bad and needs to be replaced.

    • Guest - mike

      The car starts then it shuts off. What could be the problem?

    • Guest - Tech

      In reply to: Guest - mike

      That could be a million things ! Need more information.

    • Guest - Robert

      My wife has a 2006 Chevy Impala LT. She was driving the car today and her traction control light came on then the service engine soon light came on, and then the two following messages appeared " Service Traction Control" and then " Reduced Engine Power" . The car then began to drive very sluggish and as she arrived home, I saw the car sputtering. Do you know what this could be?

    • Guest - Tech

      In reply to: Guest - Robert

      This problem with your Impala could be several things. A problem in the emission system will turn on the check engine light, and that will disable the traction control system- depending on the problem and code stored in the computer.

    • Guest - Franklin

      Chevy Equinox had the same type of growling noise in the front that changes when you're turning. Had one of the front wheel bearing hubs replaced and took care of that problem. Now my ABS light is off the dash as well.

    • Guest - j.l rogers

      2001 Monte Carlo my car crank one day will crank the next but will crank 2 days , and stop

    • Guest - Answer

      In reply to: Guest - j.l rogers

      Could be many reasons for this. Bad ignition switch, faulty starter, loose battery cables, security problem with the Passlock sensor- ignition cylinder, aftermarket alarm, etc. Would need to know if the security / theft light is on when you try to crank and then release the key to the on position- not turning to off. The light should not be on or blinking.

    Latest Articles

    2014 Chevy Cruze Diesel for ...

    It's been a little over a year and a half since General Motors first confirmed plans to offer a ...

    Joe Flacco Wins New Corvette ...

    Super Bowl XLVII MVP Takes Home Chevrolet Corvette StingrayPresented by local Chevrolet dealer who ...

    New GM recalls 2012 cars over ...

    Report Receipt Date: JAN 24, 2013NHTSA Campaign Number: 13V023000Component(s): AIR BAGSVehicle ...

    GM Recalls Chevy Express And ...

    Summary:General Motors (GM) is recalling certain model year 2013 Chevy Express and GMC ...

    How Things Work

    Power Steering- Electric- How Does It Work

    The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions.


    Common Engine Codes

    Code P0101 or P0102 Mass Air flow Sensor

    The mass air flow (MAF) sensor is an air flow meter that measures the amount of air entering the engine. The powertrain control module (PCM) uses the MAF sensor signal in order to provide the correct fuel delivery for a wide range of engine speeds and loads. A small quantity of air entering the engine indicates deceleration or idle.