20 Most Recent 2003 Chevrolet Impala Questions & Answers

u will find a lot of wiring diagrams and circuit diagrams help books and stuff like this at reliable-store
the girl in the chat box can help u instantly... im a frequent buyer there since Im a mechanic so take help from there

2003 Chevrolet... | Answered on Nov 18, 2019

The obvious problem is it is not the correct one. Carefully compare the old one with the new one - if not the same, take the old one back to where you purchased the new one and get the correct one.

2003 Chevrolet... | Answered on Nov 03, 2019

gee not codes to read
leaves you with ECU or a module fault
fuel pump or fuel pump relay
bad fuel
while hot.. coils packs or crank angle sensor might be worth testing

2003 Chevrolet... | Answered on Oct 04, 2019

Left side of engine near starter.

2003 Chevrolet... | Answered on Oct 03, 2019

Hello Anonymous,

Please find your information here: http://bbbind.com/free_tsb.html

Fill in the details about your vehicle to locate the correct schematic for your entertainment (Audio system) 11752936-k2yvcyjwveyxs0psxzc0l3es-3-3.jpg

2003 Chevrolet... | Answered on Jun 03, 2019

Before replacing parts there is a specific way to start diagnostics an a professional grade scan tool is a must ! a code reader can not access the body control module , or the EBCM - electronic brake control module or instrument cluster ! All these modules communicate on the class 2 serial data bus.
Begin the system diagnosis with Diagnostic System Check - ABS . The Diagnostic System Check will provide the following information:
The identification of the control modules which command the system

The ability of the control modules to communicate through the serial data circuit

The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
The traction control switch is a input to the body control module, with a scan tool hooked up an looking at BCM data ,check for conformation the traction control switch is turning on an off !
SERVICE TRACTION SYSTEM The IPC illuminates the SERVICE TRACTION SYSTEM indicator in the message center when the electronic brake control module (EBCM) detects a malfunction in the traction control system. The IPC receives a class 2 message from the EBCM requesting illumination. The SERVICE TRACTION SYSTEM indicator illuminates for 60 seconds when the condition is present. The IPC sends a class 2 message to the radio in order to activate an audible warning.
TRAC OFF The IPC illuminates the TRAC OFF indicator when the following occurs:
The electronic brake control module (EBCM) inhibits the traction control system due to a malfunction in the traction control system. The IPC receives a class 2 message from the EBCM requesting illumination.

The body control module (BCM) detects that the traction control switch has been pressed (signal circuit is low). The BCM sends a class 2 message to the EBCM in order to disable traction control. The IPC receives a class 2 message from the EBCM requesting illumination. The BCM sends a class 2 message to the radio in order to activate an audible warning.

2003 Chevrolet... | Answered on Apr 28, 2019

The "check engine" light tells you that the ECM (computer) senses a fault in one of your cars systems. You need to find out what the OBD (onboard diagnostic) code is to determine the problem. The auto parts store will scan for the code, but most will not reset the computer. You can do that yourself by disconnecting the battery for a half hour or so after the repair has been done. If the fault isn't repaired the code will reset and the light will come back on.

2003 Chevrolet... | Answered on Apr 24, 2019

sounds like your not getting any power from battery at all, who ever replaced the starter didn't connect your cable from battery correctly. one hot cable runs from battery to starter , you can start there, check battery and fuse, in not a mechanic, but I've changed a few starters on Chevy truck, hope this helps, good luck!

2003 Chevrolet... | Answered on Apr 23, 2019

sorry but impala ball joints are not pressed in they are secured by rivets

2003 Chevrolet... | Answered on Apr 16, 2019

Tip & How-To about Cars & Trucks
Resetting a Vehicle Anti-Theft System
This is how you reset an anti theft system if you have the anti-theft light on, or your car is cranking, but you have no spark.

Doing a full reset of the anti-theft system.

Disconnect both battery leads for at least two hours.
Hold the negative and positive leads together for 5 minutes to fully discharge any power.
Put the key in the ignition, but not turned on. VERY IMPORTANT!
Connect the positive lead.
Connect the negative lead in one swift movement.
Wait 15 minutes for the system to fully reset.
Posted by Andrew... on Jan 14, 2018

Resetting Vehicle Anti Theft System

2003 Chevrolet... | Answered on Mar 23, 2019

30-35 Watts @ 4ohms

2003 Chevrolet... | Answered on Nov 13, 2018

make sure wiper motor is grounded if ok check wires for loose or bad ground

2003 Chevrolet... | Answered on Sep 01, 2018

possible door switch open or loose

2003 Chevrolet... | Answered on Sep 01, 2018

Looking at a wiring diagram it look's like it's a possiblity . Free wiring diagrams here http://www.bbbind.com/free-tsb
Test the electrical circuit's using a DVOM - digital volt meter .

2003 Chevrolet... | Answered on May 31, 2018

GM vehicles from 2003 to 2006 had instrument cluster problems were gauges showed wrong data , indicating overheating , wrong speed or no speed , low or no oil pressure etc.... Taking to a qualified repair shop that has a professional scanner that can view coolant temp. data to the PCM an from the PCM to the instrument cluster , rather buying parts the vehicle doesn't need . An trying to guess the problem instead of diagnose the problem . Your vehicle may not even be overheating ,if your just going by the temp gauge.

2003 Chevrolet... | Answered on May 27, 2018

sounds like its being starved. check the fuel line and filter. also the fuel pump. could be the pump wnem it gets warmed up not giving pressure or the filter is blocked. same for the air filter. could also be too much air is in the mix broken vacuum line or gasket on manifold.. if any hissing sounds can be herd with engine running that is the sound of leaking air into engine. some times you cannot hear it or see it, you will need to spray carb cleaner over different areas if the engine sound changes or cuts out itt were the leak is.

2003 Chevrolet... | Answered on May 03, 2018

Have fuel pressure checked. Check for spark when it won't re-start by using a tool designed to check spark or hold ignition wire barely away from module , while someone tries to start engine in short bursts. Try not to make contact with vehicle besides this hand and keep clear of moving engine parts. Best to use rubber glove there is a chance you may be shocked.

2003 Chevrolet... | Answered on May 03, 2018

Have you checked for OBD2 fault codes via the diagnostic connector under the dash in front of driver? Do that first.

2003 Chevrolet... | Answered on May 01, 2018

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