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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 ALLDATAdiy.com users over the course of many years.
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  Jim Grant's Tech Tips

'98 Ford Taurus, Check Engine Light

Q: My ‘98 Ford Taurus has a check engine light that the technician says the code reads crankshaft sensor. The sensor was replaced and the light came back on. They guaranteed it was the computer, the computer was replaced and the light came back on. They guaranteed it was the wires between the crankshaft sensor and computer. They were replaced and the light came back on. Any suggestions, the car has been in the shop over 6 weeks.

- John P.

A: It would be helpful if you provided the computer codes, not just the description. Why? There are about a half dozen computer codes related to the crankshaft position sensor, but the problem gets better. Some of the crankshaft position sensor codes have not a thing to do with the crankshaft sensor itself. In fact, with a couple of the codes you could replace computers, sensors and wiring, as many times as you want and it will not correct the problem. The tech could have bad diagnostic information that is misleading or they do not have a handle on your computer system. The guarantee you’re getting is great, but it would be better to have your vehicle back.

 
     
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