Starting/ignition

2007 BUICK LA CROSSE
200,000 MILES • 3.8L
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MATT R.
  • MEMBER
  • 1 POST
When I put the keys in the ignition and turn to "on", the instrument cluster goes haywire and if I go directly to "start" it won’t turn over and everything goes haywire. If I wait for about ten seconds, the instrument cluster normalizes and it will start. It began that way and now I have fluctuations in my rpm, going from 900 to 3500 rpm while idling.
Oct 2, 2019 at 3:54 PM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,176 POSTS
Hello,

This is common when the instrument cluster goes out and needs to be replaced. Here is a video of the job being done on a similar car with diagrams below to show you how on our car:

https://youtu.be/_HEC44xENxw

You will need to record the mileage and VIN so the re-builder can program the new cluster. Check out the diagrams (below). Please let us know what happens.
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Oct 4, 2019 at 1:40 PM
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