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post #1 of 3 (permalink) Old 01-16-2013, 05:05 PM Thread Starter
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Reduced power to engine

When driving in wet weather, sometimes my car won't go over 20 mph and I get a msg about traction and reduced power to engine. The brakes get VERY touchy and even have locked up. I live in Texas, doesn't rain or get cold very often. This is when it happens. It is very scary!
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post #2 of 3 (permalink) Old 01-16-2013, 07:55 PM
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Re: Reduced power to engine

The reduced engine power message comes from the throttle actuator control (TAC) system. It is usually resolved by replacing the throttle body but it could also be a TAC harness issue.

Is the CEL on?

Read it for trouble codes?

The brake issue is a separate problem.
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post #3 of 3 (permalink) Old 01-17-2013, 02:12 PM
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Re: Reduced power to engine

We're sorry you're encountering this reduced engine power concern, c4715. Let us know if you decide to visit the dealership to get this looked into as we're available to work with you through that process.

Sarah (Assisting Michelle), Chevrolet Customer Service


Available Monday-Sunday

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