Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

Recommended Posts

19 Silverado TrailBoss V6:

Several times now the truck stalled out when in park and idling. I try to restart and it turns over but won't start, take the key out and try again a couple minutes later and it works but the check engine light is on. 

Prior to this starting, last week while driving 60mph on highway the truck shuddered/shook a few times and the check engine light came on. 

OBD reads out P16AF & P16A7 as the error codes. 

Dealership said they ordered a new part...anyone having issues like this?

Also, still no fix on the backup camera glitching out. Someone is gonna get hurt and GM has been made aware and I filed it with NHTSA. No fix yet...

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Similar Content

    • By Ja-Rod
      Hey all I'm wondering if anyone has experienced anything similar to my ordeal? So I have a 2020 GMC Sierra 1500 5.3 V8. It only has 1500 miles on it and we just pulled our camper with it which only weighs 4500#. It pulls fine doesn't squat much and I use a weight distribution hitch. We took it to the campsite unhooked and I parked the truck. The next morning I started up the truck and the service engine light came on. After about 5-6 starts it cleared and is no longer on. It seemed to drive fine even when the check engine light was on. I'm wondering if me parking the camper going forward and reverse a few times made the gas mileage so bad it triggered the warning light?
    • By Dgs000
      2007 Silverado 5.3 V8 with AFM with 180,000 miles
       
      Truck had lifter ticking sound and white smoke upon every start up which would go away after a few minutes, no check engine light
       
      Replacement list :
      - headgasket
      - valve gaskets
      - upgraded drivers side valve cover
      - valve stem seals
      - intake manifold gasket
      - exhaust manifold gasket
      - 8 new afm lifters
      - 8 new non-afm lifters
      - head gasket bolts
      - engine coolant temperature sensor
      - spark plugs
      - spark plug wires
      - fuel injectors
      - water pump
      - thermostat
      - cam sensor
      - crank sensor
       
      After completion of engine reassembly no longer had white smoke upon start up and no ticking sound but flashing check engine light code p0300.
      Code p0300 was for cylinder #1, #4, & #7
       
      Moved coil packs between cylinder #1 and #2 to see if coil packs was bad but no change. Set engine at TDC before installing the rocker arms. 
       
      All bolts have been properly torque and no parts have been left unplugged or uninstall.
       
      Any possible advice would be helpful 
    • By Tom_1991
      Golden Gate Bridge, what a perfect place to have your vehicle stalls on.  😂😂
      ========================
      This is not the 1st time it stalls, see:
      94' 454 stall while driving and knock sound under the cab
      ========================
      Before this fault down, I have changed the fuel pump (thanks to <riverbanks>), the original one is weak, I can easily block the fuel pipe with thumb, I think it is almost fail. Changed a new one, very strong, I can't block the fuel pipe with thumb.
      ========================
       
      Model= 1994 Chevy Suburban K2500 Silverado
      Engine= 454 TBI
      Transmission= AT
      Fault down des. :
          Location= Veterans Blvd. tunnel NB, Golden Gate Bridge(GGB) NB, Alexander Ave. NB, Calif.;
          Transfer case pos.=2H
          Coolant temp.= around 210(heated up), normal operation temp., enough;
          Engine Oil= normal pressure, enough, just changed (incl. filter);
          Trans. oil= enough, just changed(incl. filter);
          Fuel= enough, #87 from Chevron or Shell, I only fuel my vehicles in these 2 brand, I've burnout old fuel, now is new fuel in tank;
          Symptom= engine stall, hear knock sound from under the cab.
              Veterans Blvd. tunnel: attempt to shift to N then crank, crank no start, stop on drive way (no emergency stop area) shift to P, crank, start, shift to D(O/D Off), continue the road.
              GGB: multiple time of stall, after some times of stall, found the engine sounds like intake or exhaust jammed, and very weak power.
              Alexander Ave.: stall when down hill with O/D off, but back normal later.
              Inspection at break down site: Air cleaner is okay, filter is new, fuel pump relay contact is okay.
              Inspection at home : OBD scanner get DTC 54 and 32.
      =====
      Current status=sounds like intake or exhaust jammed, and power is weak; when drive next to a wall or something, can hear the sound like bleed pressure of a tire, this sound can't be heard when the vehicle is not moving.
       
      I gonna check ignition system, incl. distributor, coil, spark plugs and wires, to check if there are any bad contact, but I suspect bad contact can't cause this problem.
       
      I am afraid one more thing have broken while on GGB .😂😂
       
    • By Tom_1991
      Model= 1994 Chevy Suburban K2500 Silverado
      Engine= 454 TBI
      Transmission= AT
      Fault down des. :
          Location= Albany, Berkeley, Calif., I80E;
          Trans. pos.= D (O/D Off);
          Transfer case pos.=2H
          Last operation= OD  --> D, fully release throttle pedal;
          Speed= around 40 mph;
          Coolant temp.= around 210(heated up), normal operation temp., enough;
          Engine Oil= normal pressure, enough, just changed (incl. filter);
          Trans. oil= enough, just changed(incl. filter);
          Fuel= enough, #87 from Chevron or Shell, I only fuel my vehicles in these 2 brand, I've burnout old fuel, now is new fuel in tank;
          Symptom= engine stall, hear knock sound from under the cab.
              Attempt 1: shift to N then crank, crank no start, pull over, shift to P.
              Attempt 2: crank, start, shift to D(O/D Off), accelerate, around 40mph, stall and knock sound again, pull over, shift to P.
              Attempt 3: crank, start, shift to OD, accelerate with little throttle, around 40mph, stall with knock sound again, pull over, shift to P.
              Inspection at break down site: crank, start, noticed check engine light is on, press throttle pedal to 2000 then 3000 rpm, no knock sound, inspected engine driving belt area, belt and all pulleys are okay. 
              Inspection at home (Towed): OBD scanner get DTC 54. Inspected drive shaft for both front axle and rear axle, no loss.
          Repair attempt=
              Change: fuel pump relay (as DTC 54), spark plugs, ignition wires, ignition coil (noticed serous oxidation on the terminal to distributor), all from AC Delco, OE or above product line, purchased via O'reilly or Autozone store.
              Clean: distributor, all terminals (outer for ignition wires and inner for roter), rotor.
      Current status=normal.
      Other info. maybe useful=I found a maintenance label on wind screen, its next maintenance supposed to be on 05/22/2014 at mileage 153,000. But now is early 2020, 151,000, so most time it was just sit there.
      Question=
          Is this only the fuel pump relay?
          What is the knock sound?
          Is there any thing I should inspect or replace a new one?
    • By KNJ
      Hi! In April, my Yukon was throwing codes P0172 P0175. Local GMC dealer in Louisiana "fixed", by replacing some sensor. Traveled to PA, codes came back on. Local GMC dealer fixed by replacing BCM, body control module in June. Now my check engine light is back on! Power train Warranty ran out 2-3 weeks ago. Also had extended warranty, which also ran out at 5 years, which was Sept. Code onstar says its throwing now is P0430, all of the codes from I can find are related to exhaust system. My question is are these 3 codes related??? Could this be something they will have to fix under warranty, given it's related and has been worked on several times? 
      If not, what does this mean? Catalytic converter bad? Help! My husband is being laid off in the next week. So, obviously finances are tight. Yes, obviously itll be fixed regardless, just trying to plan and cut back elsewhere if needed. This has been a great vehicle! As luck has it, trouble starts when warranty runs out. 
       
      Really wanting to trade, but waiting on new body
       
      Adding mileage if matters, 91K
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Forum Statistics

    221,461
    Total Topics
    2,372,967
    Total Posts
  • Member Statistics

    209,179
    Total Members
    8,960
    Most Online
    Doug Martini
    Newest Member
    Doug Martini
    Joined
  • Who's Online   103 Members, 0 Anonymous, 2,484 Guests (See full list)



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.