Question about 2003 Oldsmobile Alero

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2003 Olds Alero Will turn over but not start

They said it was the ignition modulator so they replaced this, still did not start, said it was the fuel pump and they replaced this, still does not work. I have fuel pressure most times but not every time, and sometimes it will start. It has died a few times will driving. I don't want to keep putting money into it so any ideas or suggestions would be helpful.

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  • Kay Galarneault May 14, 2009

    It turns over but does not fire but it seems to be an intermittent problem. No engine codes and no check engine light. As for the ignition modulator they told me that it is what tells the car to fire or start.

  • Kay Galarneault May 14, 2009

    Its the ignition module pack

  • yadayada
    yadayada May 11, 2010

    I have worked on many of these cars and have no idea what you are calling an ignition modulator is. check this and try to explain what it does.

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Hard to determine without a diagnostics test. Since you replaced modulator and fuel pump and have same probelms, I was wondering:
Does it not fire or not turn over at all?

If you are not getting power to fuel pump at all times, that it may be a fualty Computer which can be about $400 to repair. VERY COMMON PROBLEM WITH GMs.

Do you have any engine codes? Or is your check engine light on?

Have you checked all your relays? This is the first thing I would do. You can check them with a digital ohmmeter or voltmeter.

Posted on May 13, 2009

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