Question about 2000 Pontiac Montana

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I broke the car

I tried to hook up the temp guage. I ran a wire from the fuse panel on fender to the temp control sensor. It didnt work. The car now runs bad. Very hard to start and quits when I put the car in gear. Insted of fixing I broke it.

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  • Master
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I was Hesitant to post back on this But, You have sent a Fatal Error back to the Onboard Computer and Hopefully the Dealership can Reset it and it will be Fine. If Not, You will need a New Computer.

Posted on Jan 24, 2009

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  • Pontiac Master
  • 6,982 Answers

By hotwiring the sensor, it is likely that you damaged it. Hopefully, the damage is isolated to that component and has not traveled into the computer or the gauge head itself. First I would change the sending unit, then start tracing the wiring back to determine what actually was wrong. You may get lucky and just changing the unit may fix the problem. To trace wiring, get a good manual with good diagrams. Also, have someone put a code reader on it to see if any codes are present that may be helpful (but remember, you may have set a code by doing what you did as well)

Posted on Jan 24, 2009

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