Jump to content

2014 Silverado LTZ electrically falling apart

awallburg

By awallburg
in Troubleshooting & Recalls

 Share

Recommended Posts

awallburg New Member

awallburg

Posted
Posted

Good Day, 

Desperate to find some help here. 

 

2014 Silverado 120k Miles, 6" lift and 35" tires bought from very large lifted truck dealer in Arizona in 2018, It does NOT have trailer braking however an aftermark trailer brake is installed. 

 

NOTE: I have not yet replaced the battery which is 6 years old

 

a Few days after purchasing I started getting stabilitrac warnings on bumps, dealer replaced wheel speed sensors claimed it was good to go. 6 months later it started happening again, I replaced them again myself and within weeks the problem returned... Since this last winter my truck is electrically falling apart the ABS started firing when it should not, even at low speeds, I had to pull the ABS fuse/relay just to safely drive, then the parking sensors started throwing a service system warning and now don't work at all, the 4 x4 warns it needs service but still works fine, and now the final issue that is making me lose my mind is the parking/e brake warning light dings almost constantly, even at high speeds though it does it less, the parking brake is NOT engaged..  In addition the brake warning is followed by the "steering assist reduced drive with care message". though I cant notice an issue with power steering.. 

 

Any feedback is appreciated I am losing my mind, I will be replacing battery by this seems a little much for just battery, I have read about the ground issue could that be it? Bad BCM, or ECM?

PhilB Enthusiast

PhilB

Posted
Posted

If the battery is 6 yo, then that would be my first guess.  You could have a cell going bad in the battery.  You can check the battery cables also as they could have corrosion inside the insulation and causing voltage drops.  I would try a new battery and possibly new cables.

 

With all of the computerized things on these trucks, a slight change in the voltage could trigger many different symptoms from the computer.  

mikeyk101 Senior Enthusiast

mikeyk101

Posted
Posted

Like the others mentioned, new battery is a must at 6 years. Replacing the battery cables is an excellent suggestion too. And definitely inspect the G218 ground on driver's side dash along with checking and cleaning the other grounds especially the one in rear of passenger side front wheel well.

  • Like 1

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

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   1 Member, 0 Anonymous, 321 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...