engine power is reduced

2010 GMC TERRAIN
150,000 MILES • 2.4L • 4 CYL • FWD • AUTOMATIC
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SHAWNCOURSE
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  • 1 POST
Upon cranking it continues to turn over when you let go of the key(in the run position). Radio takes a minute to to come on. Then service stabilitrak control light comes on then reduced engine power is displayed on vehicle information center RPMs will not go over 3,000. When I turn off the engine it keeps running then sputters before shutting off and a strong smell of gasoline comes from under the hood ?
Apr 26, 2015 at 4:08 PM
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HMAC300
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Hello,

It sounds like you have two problems first I would load test the battery and check the cable connection here are two guides to help with that.

https://www.2carpros.com/articles/car-battery-load-test

and

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

For the limp mode poor running I would start with a tune up including servicing the throttle bore. Here are two guides for that as well.

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

and

https://www.2carpros.com/articles/throttle-actuator-service

Please run down these guides and report back.

Apr 27, 2015 at 7:17 AM
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BOOPERIII
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Thanks for this post I had the same problem and the throttle bore was a mess. Once cleaned the car run perfect I love this site.

Jan 21, 2019 at 7:35 PM
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