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How do you repair intermittent shifting between 2WD and AWD-4WD of a 1999 GMC Suburban 1500 SLT during wet weather?

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4x4 engage If you have the electrical (thermal) front axle engagement setup, it losses it's abilty to engage the front axle over time, and really has problems in cold weather. Replace it with a mechanical setup from "4x4 Posi-Lok". Their stuff is pretty much bullet-proof.
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What does it mean if the 'service engine soon' light intermittently comes on accompanied by rough shifting on a 1994 GMC Suburban K1500?

Answer   Sometimes when the "Service Engine Soon" light comes on, depending on the problem the computer will go into "Limp Mode" which are factory settings for different

How do you replace a brake switch on a 1999 GMC Suburban 1500?

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