Top 20 2001 Chevrolet Impala Questions & Answers

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TRY THIS! 30-MINUTE LEARN PROCEDURE 1. Turn ON the ignition, with the engine OFF. 2. Attempt to start the engine, then release the key to ON, vehicle will not start. 3. Observe the SECURITY telltale. After approximately 10 minutes, the telltale will turn OFF. 4. Turn OFF the ignition, and wait 5 seconds. 5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes. The vehicle is now ready to relearn the Passlock(TM) Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK. 6. Start the engine. The vehicle has now learned the Passlock(TM) Sensor Data Code and/or password. IMPORTANT: The vehicle learns the Passlock(TM) Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

COOLANT SENSOR !

Most of the time you have a fuse for low
beams and high beams if both are out at same time it's usually a fuse.

Usually valve body is stuck,flush?did they change trans fluid and filter if not recommended you change filter and a bottle trans x it helped a 2001 impala ls I had transmission was good till the day sold it

Heater fan or coolant fan ?

ECM has nothing to do those thing's . Probably not A BCM problem either . Did the Garage check for DTC'S - diagnostic trouble code's ? DTC B3064 or B3069 DTC B3127 DTC B3128, B3133, or B3138 DTC B3132 DTC B3137 DTC B3272 Did they test the electrical circuit's for these componets ? Looking at a wirng diagram to see what if anything these have in common ,power feed , ground etc. maybe . What kind of garage did you take it to . Just to let you know ,replacing any module on your vehicle would need programming , dealer .

Programming problems with the PCM. Anytime you change an engine or other major component it must match exactly with the PCM . If the pcm was replaced with the engine, then the message being received from the ignition module is not recognizable and the pcm will not shut off the engine. Either the PCM has to be re flashed by a professional to match your old ignition module.

Check for interior lights at hat are on, do it at night. Common issues are lights in the sun visors, trunk and hood are also common as is console and glove box lights.

The ignition key contains a coded transponder chip which is read via an antenna around or close to the ignition/steering lock and the code in the key must match the code in the car's immobiliser memory in order to start the car. As the key came from a different car it will need recoding. Sometimes the chip is moulded in plastic and sometimes it is possible to take the key apart - in that case you should be able to fit the chip (like a grain of rice) to your new key. If you are lucky placing the original key close to the new key while trying to start might just make it work. Good luck!

check the harness at the door hinge

The dimmer switch is bad .

Believe it or not, new thermostats can be bad. Did you maybe get some adhesive on the thermostat preventing it to open fully? Is the thermostat installed with the crown up? The only other thing that I can think of, if it's a closed cooling system and the wrong radiator cap is installed, it won't hold the pressure, therefor overheating. The other thing may be the water pump. Many times the impellers will wear down internally causing to low of water flow.

You can get the solution of your problem from ToolsNyou.com They provide the manuals of car repair.I was also facing a problem in my car.They helped me by provided the service manual.Go to that link and try it once. http://toolsnyou.com/

Very common problem on these cars. REplace the hazard switch

Sounds like the anti theft system is engaged.

https://s8.postimg.org/5js3uvryd/park_lamps.jpg Click on the link. Did you check fuse circuit for voltage? Use a test light with headlamp switch on to check for voltage. See the park lamp relay, I'm not saying the relay is faulty, but, you might be able to use jumper wire on load side of relay, if lamps work, the problem is on control side of relay, for some reason. The load side of relay is that line with arrowhead. There could be other issues.

Have you had the ignition switch replaced under recall yet??? Get this car to a dealer!!! http://www.gmignitionupdate.com/product/public/us/en/GMIgnitionUpdate/index.html

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I swear this used to happen to me. I'd hit the top of the dash and it would stop. No lie