Question about 2003 Chevrolet Impala
Chevy doesn't have a inertia switch . If the engine dies after a wreck the fuel pump shuts off because the PCM doesn't see a crankshaft position sensor signal . The engine has to be running or cranking . GM Fuel Pump Relay Testing YouTube
Posted on Dec 12, 2016
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Posted on Jan 02, 2017
If it only happens when braking, then it is definately you brake system. Most likely you rotors and pads need replacement. If you can do car work, then this is not a difficult job, but requires some wrenches. The parts can be purchased a lot cheaper on-line. A shop will get you for $300-$800. I bought all my parts for my 2001 VW passat for $200 shipped to my door. Good Luck.
Posted on Jan 21, 2010
After you replace the ignition switch turn the key to start the car and release leave the key were it stops after trying to start wait 10 minutes until security light goes out turn key to full off position then repeat the above procedure two more times for a total of three on the 3rd attempt to start car wait for light to go out then turn key to full off positoion wait 10 seconds then try to start car body control module should learn new pass code and the car should start.
Big john, J@J Automotive
Posted on Mar 02, 2010
I have replaced the radiator in my 2003 Chevrolet Impala LS. The car started running hot and shut down. Took it to a radiator shop and found a crack in the radiator. I have replaced 2 thermostats in the car already. I noticed water running from under my car today and it seems it was coming back out of the overflow. I am stumped as to what is going on with this car.
Posted on Jul 02, 2010
You will need to pull the control head out and replace the tiny bulbs that are hard wiried to the circuit borad inside, this requires very good skills in solder repair. The light bulbs are available from Radio Shack, the part number is 7219
Posted on Feb 23, 2012
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