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I replaced battery, now wrench light is on - 2008 Ford Fusion

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I had to replace my battery about four months ago. Once you replace the battery you have to start the car and let it run for a little while to re-map the "brain." This is stated in the manual that came with the car. I had the same problem though, the wrench light was on and I had no revs when I hit the gas. However, I shut the car off after I let it idle for about 20 minutes. When I started the car up the second time the wrench light was off and the car was operating normally. The car will also shift harshly until the transmission learns how to shift efficiently as well.

I hope this helps.

Posted on Feb 06, 2013

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