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Jim Grant Tech Tips Jim Grant Tech Tips
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.
If you have any questions, please feel free to email us.



Lincoln - Mercury
  Jim Grant's Tech Tips

‘99 Oldsmobile Bravada, Intermittent Airbag Light

Q: I just purchased a used ‘99 Oldsmobile Bravada with 60k miles on it. A few days after driving it home, I noticed that the airbag light would come on intermittently while driving. It seems to do it more when the temperature is above 78 degrees F. When it was in the mid-80’s it was on more than off. In the mornings and cooler than 60 it won’t come on. I have not had the codes pulled yet, but I suspect a bad connection somewhere. Is this a task that can be handled at home? Are there any known problems with this years model group for the airbag components? Do you have any ideas what it could be or what to expect the repair to be so if I need it fixed at a shop I won’t get taken for a ride?

- Ralph

A: Intermittent air bag codes are spiteful things that I wish on no one. When the light goes out the problem is gone and all that is left is a code that may provide some guidance. My first suggestion is not to work on any component of the air bag system unless you really understand them and have the proper equipment and training. There are several common component failures that are known for their intermittency, but there is no way to tell until the codes are checked. My next suggestion is to park the vehicle in the sun or run the heater enough to make the problem occur and then take it to the shop for diagnosis. If you could pull that off you would greatly cut down on diagnostic time. It is much easier to diagnose a broken part than one that is not.

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