Problem Reports

Chevrolet Impala

Report: Engine Starts and Stalls Due to Secutiry System Fault

Chevrolet Impala Problem

13 Reports

Model Years Affected: 2000, 2001, 2002, 2003, 2004, 2005

Engines Affected: 3.4L V6, 3.8L V6

Average Mileage: 125,288 mi (35,000 mi - 236,772 mi)

The engine may start and stall with the security light flashing. This is commonly caused by a failed passlock sensor which is part of the ignition lock cylinder. A secondary cause could be the ignition switch itself. Worn contacts inside the ignition switch can cause voltage drop issues which can affect the passlock system. Proper diagnoses should be performed before replacing any parts.

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Report #1

marypdx, 2001 Chevrolet Impala, 3.4L V6, 100,000 mi
Report #2

Visitor, 2003 Chevrolet Impala, 3.8L V6, 60,250 mi

Passlock caused the engine to not start, as it was flashing the security light. I was tired of waiting the 10-15 minutes for the light to go solid. My mechanic replaced the key tumbler with a new passlock on it after discovering the wires and connectors on it were corroded (GM used tin connectors instead of gold), and it still won't start or turn over. We had it towed to the dealer to reflash the main computer. Once that was done it starts like new.

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Report #3

Visitor, 2004 Chevrolet Impala, 3.8L V6, 35,000 mi

car won't start - security light flashes- get out of the car close the doors - lock it with remote - leave it alone - wait 10 minutes and try it again - took me 3 times of the car doing this before I realized to leave it alone - don't play with the remote ie: lock and unlock

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Report #4

lil james, 2000 Chevrolet Impala, 3.8L V6, 150,000 mi

Rookie
car wont start due to no fire to the crank sensor and fuel pump

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Report #5

Denner, 2004 Chevrolet Impala, 3.4L V6, 236,772 mi

Rookie
Security light flashes, car won't start

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Report #6

Visitor, 2001 Chevrolet Impala, 3.4L V6, 95,000 mi
Report #7

Visitor, 2002 Chevrolet Impala, 3.4L V6, 200,000 mi

Car would start but once I arrived at one location tried to go to another it would not start had to wait 15 minutes to half an hour,replaced BCM,ignition lock cylinder and switch now engine is shaking real bad horn doen't work, power locks, windows or trunk do not work on it security light is on.

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