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A collection of helpful articles based on reader submissions
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Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by users over the course of many years.
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Lincoln - Mercury
  Jim Grant's Tech Tips

'91 Chevy Cavalier, No Start Parts Drain

Q: I own a’91 Chevy Cavalier that I’ve had no major problems with. In August I was driving and it just gave out. My nephew thought something was draining the battery. He jump started it to get it running. The next morning when I went to start it, nothing! No lights came on and the motor would not turn over. I brought it to a garage and they put in a fuel pressure regulator and fuel injector, that didn’t help. Next an alternator and new battery with no results. Then I got charged for a reman ECM unit & PROM control unit. I’m still without my car! I’m a senior citizen with a disabled son. I need transportation desperately as I make frequent visits to the doctors and cannot afford cabs. So please, if you have any clue to what may be wrong, please advise me. P.S. My nephew says there was no need to replace the parts. What they need to do is find the source that is draining the battery.

A: It is time to call a wrecker and find a new mechanic. From what you’re saying there is a concern. I find it difficult to understand why it would take two months to diagnose and repair a no start problem. But what is more concerning is that your nephew could start the car by boosting the battery. If a vehicle starts and runs with a boost of the battery then why was the fuel pressure regulator and injector replaced? Then to go from a battery and alternator to a computer with new software? Your nephew is right! Before any parts are replaced the cause for the battery drain should be found. Then parts needed to correctly repair the vehicle can be installed. Much of what has been installed in your vehicle does not correlate to the complaint. I would strongly suggest you have your vehicle towed to another repair facility! Also, keep track of the money/parts you’ve paid. You may be asking for consideration once the correct diagnosis is found.

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