Chevy Silverado Lock Cylinder Problems
Owners report problems with the lock cylinder on their 2003-04 Chevy Silverado trucks. The problem is either a binding lock cylinder, ignition switch, 
or the park lock cable. The best way to isolate the problem is to remove the shroud from the steering column and then remove the lock cylinder and the park lock cable. Then stick a screwdriver into the lock cylinder bore to engage it with the linkage to the ignition switch. Turn the screwdriver to see if the movement is smooth. If it is, that eliminates the ignition switch.
Next, reinstall the park lock cable and repeat the test. If it now binds, replace the park lock cable. If both of those components check out, the problem is in the lock cylinder. Before replacing, try applying anti-seize compound inside the bore. If that doesn’t work, you’ll have to replace the cylinder.
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© 2007 Rick Muscoplat
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I search it on google and i found it is very nice and much informative blog about auto repairing. Through this most of people solve their automobiles problem by self. I read most of your post these are really helpful.
Mohammad Zohaib Khan from Toyota Deals
Chevy seems to have many problems these days including the key-lock cylinder issue. Auto Repair
Great! I just wonder if you can recommend some blogs or forums about open house sales and appraisals. By the way, nice article. Chandler Locksmith
It’s not just Chevrolet. It’s all of GM, Ford and Chrysler. I have had far better luck with Volvos and VW’s.
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