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Multiple Deactivation Soleniod Valve Control Circuit Codes


dtreid

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Posted

New to me 2014 GMC 1500 with 5.3 motor

 

I've got multiple cylinder deactivation solenoid valve control circuit codes:

P3401

P3425

P3441

P3449

 

No misfire codes.  Engine runs great.

 

Any ideas on troubleshooting steps.  Seems like it must be an electrical issue?

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