Questions & Answers for: Chevrolet Lumina drop signal

After driving for 3/4 of an hour the lights started to dime and then the engine started slowing down and the quit It sounds like the alternator has gone bad and needs to be replaced. The alternator ...

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Question about 1992 Lumina

1 Answer

...engine codes still remaining? IF car restarts right away its gonna be tricky finding out what is dropping out. Engine codes are the best clue to start the hunt for problem. From experience

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Question about 1997 Lumina

1 Answer

...drop out. Hook up your oscilliscope and watch the signal. It should sweep up and down smoothly with no drop outs or spikes. 3. If no problems were noticed, perform a wiggle test. Do this by wiggling ...

...Drop Test Did you hook up a scan tool ? Not a code reader ! Check scan data ? What are the fuel trims at ? adding fuel taking fuel away ? Are the O2 sensors switching like thier suppose to ? 006 O2 ...

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