Question about 2005 Chevrolet Silverado

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My service 4wd scan comes on. any idea what that

I have a 2005 Chevy 1500HD crew cab and my computer flashes the service 4wd every once in a while. I know chevy has had problems with the sensor. Any idea which one and what it is called

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It is called the solenoid sensor, it can keep the truck in a different gear than is shown on transfer case switch. This happened on my chev as well but it wasn't the sensor just a corroded ground cable for the solenoid sensor.

Posted on Sep 09, 2009

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