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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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  Jim Grant's Tech TipsJim Grant's Tech Tips
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

'01 Pontiac Grand Prix GT, ABS & Traction Lights On

Q: I have a ‘01 Pontiac Grand Prix GT and the ABS & Traction lights came on. Once the brake pedal surged when pressed. I took my car to a Pontiac dealer and the stored code was for the speed sensor. After this was replaced both lights still came on after the car heated up. I took it back to the dealership and there were no stored codes either in current or history. The dealership cannot find any problems at this time. The tech also said that the light has not come on for him and I told him that the car must be driven until it heats up. The dealer still cannot find the problem. Do you know what this might be? I have been on line all day and can't find anything about this problem.

- Brandi G.

A: I will not be able to tell you what is wrong with the ABS brake system or the Traction control system with the information you’ve provided. I’m surprised that with the warning light coming on the way you’re describing that there isn’t a diagnostic trouble code stored in the computer’s memory. Without the diagnostic trouble code information it is next to impossible to determine what service is needed to correct your problem. I will suggest a strategy in finding a solution to your problem. Document the amount of time the vehicle has to be driven to cause the warning light to come on and do this more than once. The reason for this? You want to be able to deliver/drive the vehicle to the dealer with the problem occurring. You do not want to be paying a technician to go driving in your vehicle until the warning light comes on, that can get pricey. If the vehicle is under warranty it is a bit of a battle for the technician and the dealer to be paid/reimbursed by the manufacturer for what could be viewed as joy riding. For a solution to your problem either bring the vehicle in broken or documented in a manner that reduces the time needed to create the problem.

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