Jump to content

2020 Silverado 1500 Custom 4.3L V6 - HELP

Titan2004
 Share

Recommended Posts

Titan2004 New Member

Titan2004

Posted
Posted

New member and not sure if this post is in the correct section but I NEED HELP PLEASE!!!

 

I have a new '20 Silverado 4.3L V6.  Love the truck.  At 3300 miles it started to run rough with trouble shifting.  Next day while driving light came on indicating "Reduced Engine Power".  Kind of ironic coming from a V6 but whatever.  Immediately took to dealer.  They found codes P0106 (00) and P16F3 (00) as history codes.  They found documents related to codes.  Inspected wiring harness from ECM to MAP sensor, all good.  Wiggled harness with engine running, all good. All inline connectors inspected.  Test drove 100 miles, no issues found and truck was released.  Dealer stated GM is aware of an issue but no fix available?

 

At 4800 miles the radio went black, then truck started running rough again.  I had to intermittently put in neutral while driving since shifting was so erratic.  Then radio and cluster went dark and truck completely shut down while driving.  Put in neutral, coasted to side of road.  Removed key and restarted.  Truck went dark again and had to pull over.  Started back up and immediately dropped off at dealer with CEL on.  Got notification from GM that engine/transmission fault detected.

 

Dealer installed new manifold sensor and was ready to release back to me.  No, I'm not convinced that sensor would cause gauge cluster and radio to go dark in addition to truck shutting down completely while driving.

 

Does anyone have any input or advice for me please?  Brand new truck and I'm very frustrated with what is going on.  Thank you

greco2003 Enthusiast

greco2003

Posted
Posted

Sounds like something electrical bad connection, ground, battery. It has had 2 trips to dealer for same issue one more and you can Lemmon it. 

Titan2004 New Member

Titan2004

Posted
  • Author
Posted

Thanks for replies.  Manifold sensor still tripped history code.  They ordered new ECM.  Got lucky and ran into tech.  He said he'll try ECM but suspects its likely a wire rubbing somewhere and will have to trace it.

 

Lemon Law in PA is pretty clear and actually effective.  Yes, they have one more visit after this one to fix or I get refund or replacement.  Won't be easy or fun but I'm prepared if it comes to this.

 

If anyone else has had wiring issues on new Silverados please chime in.  Thanks again 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,866
    Total Members
    8,960
    Most Online
    Greg3160
    Newest Member
    Greg3160
    Joined

  • Who's Online   2 Members, 0 Anonymous, 485 Guests (See full list)

  • Latest Articles

  • Posts

    • MANGOAL
      Mangoal or FitcamX OEM Dashcam?

      By MANGOAL · Posted

      Late reply, but yes—it works on the SLT trim. Compatibility comes down to the plastic shroud shape behind your mirror, not the trim badge itself. On the SLT with auto-dimming, it uses a plug-and-play Y-harness off the mirror/rain sensor power, so no need to run wires down to the OBD port. If anyone's ever unsure about fitment, just drop a photo of your mirror housing and we can double-check it.   Appreciate the detailed feedback on the install! On the windshield glare—we actually took feedback like yours and developed a dedicated CPL (polarizer) filter to cut down dash reflections on sunny days. If you're still running the cam, shoot me a DM. I'd be happy to send a CPL filter over for you to test out—no charge. 
    • davester
      2002 GMC Yukon

      By davester · Posted

      There are no stickers in your glovebox?
    • davester
      Weight limit in bed

      By davester · Posted

      Look at the numbers on the stickers in the door jam...
    • EJS2015
      Actual Full Screen CarPlay on Refreshed Silverado/Sierras.

      By EJS2015 · Posted

      Yes, every time the developer updates his code, you must recompile. I will private message you with the latest because it changes pretty much with every version.
    • Grumpy Bear
      Transmission Temperature Hitting 220s

      By Grumpy Bear · Posted

      After I wrote that reply I went for a ride. 85 F out. So trans started at 85 F and it shifted the same as it did an hour latter at 168 F. I've never actually recorded the to cold to shift point but it is under 32 F before they start hanging on to a lower gear or leaving the converter unlocked. Both intended to heat fluid.    Yes, brake or bake. Absolutely.      Your welcome. True research ended decades ago. Field trials are still in play.    There is a thing called oxidation onset temperature. This is the heat related oxidation not the O2 exposure kind. For mineral oil that starts at 140 F. So what happens after 140 F? Each 20 F cuts fluid life in half! Does using a Full Synthetic improve that? Yes! By how much? Depends on the base oil type and a few other factors. But enough to notice. Some esters are even higher. There are even synergies between types the will raise it higher than any one component is alone.    Then there is "Hindered" oils. Antioxidant additives. Hindered Polyol Esters can sit at 500 F for years in a turbine.   When a blender brags his oil will 'take 500 F" in service he doesn't specify for how long. Water will dance on a 500 F hot plate for several seconds. @newdude put up a chart showing the relationship between fluid temperature and it's life in an automatic transmission. Here's a version of that chart for Group III based oils. These temperatures are those in the pan as observed as 'normal'. that is you drive as you do for as long as you do under what load you ask of it and whatever that temperature is this graph applies to. Flash temperatures of a few minutes isn't what his means.    Note that fluids held at a constant 240 F have a service life of only 20K miles. 220 F explains the factory exchange limit, eh? My equipment I keep under 180 F and I'm good if the cooler will hold it as low as 140 F. But that's me.   

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...