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engine light flashing & stability light on 2015 Silverado Truck K1500 (shaking and misfiring less than 75K miles)

cmherrera49

By cmherrera49
in Troubleshooting & Recalls

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cmherrera49 New Member

cmherrera49

Posted
Posted

  1. The truck was shaking and misfiring approx. a month ago - engine light flashing and stability light on. We took it in and was told based on miles we need to do a major tune up $1100.  We completed all recommended maintenance on truck.  The truck continued to act up we were now told it was a coil and sensor on # 7? $700 dollars + and drove a couple of days started shaking and misfiring again losing power. Now we are told same problem on 7 (keep in mind we just replaced coil and sensor) and now they said it is also number 4.  Now quoted approx. 1800 to 2000 to fix.  Kept truck at dealer and they are getting ready to replace # 4 coil and sensor.  As they are starting the work they now state it is a valve problem and  will cost approx. $5000 for repair.  We do all regular maintenance on truck warranty ran out at after 5 years7/29/2020 again less than 75K miles.  Any recommendations.  I have contact customer compliance to check on any recalls.  UPDATE : PICKED UP TRUCK today now they said IT IS THE LIFTERS.  This truck has less then 75K miles and he said we might have a heavy foot?? We have never towed anything nor drove off road or even drive very fast.   

     
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  • 3 months later...
T-Town-Z Enthusiast

T-Town-Z

Posted
Posted

Did you ever get this resolved ?   My 2014  acted up about the same, similar codes, vibration, reduced power, etc.  Mine had the P0324 & P0307 (#7 Cylinder misfire code)  I'm at 138,000 miles.  I checked what I could and swapped coils, plugs and wires, then finally pulled the drivers valve cover.  Had the one "dead" valve spring on #7 cylinder which is one of the AFM cylinders.  The dealership is not the place to go for this job if you are off warranty.  

I have the truck sitting at the shop now waiting to get in for a full DOD-Delete cam and lifter swap.  I hate all this expensive and unreliable crap they put in the engines now !

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