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2002 chevy trailblazer_ltz
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Hello everyone. I have a 02 tb with ses light on. It says I need a camshaft position sensor. I've changed it two weeks ago and it's still on. I've also changed the camshaft solenoid and crankshaft sensor. The ses light will go off but when I turn off my trailblazer and crank it back. The light comes back on. Any suggestions? Thanks
 

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I did the same and then did oil change with Lucas oil treatment and my light went off about a month later (2days ago) and did another change and my light has not came back on I think in my case I only had 2qts of oil in the engine so I think I just unstuck my timing chain tensioner could have to replace it tho I’m already planing on it
 
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