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Step 1
Purchase a car repair manual for the Chevrolet Tahoe. It helps you with troubleshooting and also gives you instructions for taking everything apart and replacing it.
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Step 2
Use the manual to troubleshoot the problem. Verify your results with the people on the 2CarPros website, or another certified mechanic, and glean tips on doing the repair from them.
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Step 3
Get a second opinion. Mechanics don't know everything. Sometimes when they diagnose a problem with your car, they're wrong. When you ask the second source about the problem, don't mention the initial diagnosis. If the diagnoses conflict, repeat this step with another mechanic until you reach some kind of consensus.
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Step 4
Decide if the repair is worth the money and effort or if you're willing to drive the car around as it is. Depending on the year, Chevrolet has had a variety of bugs in their Tahoe model. Most of them are internal issues that don't have any bearing on the car running properly. It's not uncommon to have faulty instruments or a weak window that doesn't always roll down or roll back up. If it's worth it to you to fix the problem, move on to Step 5. Otherwise, deal with it until you can trade in your Tahoe.
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Step 5
Dismantle the area in your Tahoe that is causing the problem. Replace the parts that aren't working properly using your repair manual as a reference.
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Step 6
Reference the repair manual to put everything back together. Drive the Chevrolet Tahoe to test the repair. If the symptoms still show up, repeat Steps 2 through 5 again until the car works the way it should.
