Letter from GM about the exhaust camshaft position actuator solenoid valve

HotZ28

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Do you have any of the conditions mentioned? If not, it may still be a good idea to have the dealer inspect the wires while under TSB warranty.
 
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Sam14GS

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I don't have any of the conditions stated in the letter. Since the letter says Do not take your vehicle to the dealer unless it has the conditions mentioned, I doubt that they will just check it for free. What does that solenoid valve do ? Where is it located ?
 
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As stated in the letter not to bring it in unless it has the problems, it may be a hurry up and wait which is a issue as no one will know what inconvenient moment that will be. You can call the dealer and express your concern which they may do a customer courtesy inspection or say it's nothing to worry about, it's just how good the dealership may be.

It's not that this is the first time,
15824 - Camshaft Position Actuator Valve (Exhaust) Replacement - 2013 Cadillac & Chevrolet

Here's a quick description of it:
What Is an Exhaust Cam Actuator Solenoid?

it's number #236 on the diagram, no harness.
100826GM00-066.png
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MelsRegal

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I replaced one on a 2008 Pontiac G5. Remove the plastic engine cover, disconnect the wire harness to the sensor, remove the bolt holding it down, clean any debris that might fall in, twist and pull the sensor out. Installation is the same in reverse. Might be a 15 minute job.
 

exarkun

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2014 Buick Regal GS AWD
I got the same letter. As it says, no need to bring it in unless you have the symptoms. It also states they are extending the warranty on that too.
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Eilustre

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Haven't gotten any notice's for my 16' GS. since my rear tail lights were recalled due to condensation and cracking
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