Jump to content

Won't start ?

B.R.67

By B.R.67
in Troubleshooting, Warranty & Recalls

 Share

Recommended Posts

Pinnacle Enthusiast

Pinnacle

Posted
Posted
8 minutes ago, Colossus said:

They aint that good either.  They have their issues. 

List them here

  • Like 2
  • Replies 243
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

tystaples
tystaples

I have the same issue, started yesterday on my 2020 Denali 1500 with the 6.2. I purchased the truck new the end of April and it currently has 4900 miles on it. Crank and crank with no start. I did eve

tbarn
tbarn

A video of it not starting is of no use to the dealer or GM. It's not that they don't believe you but they cannot duplicate the concern. Watching it not start isn't any help diagnosing the issue.

econometrics
econometrics

True, but if you have a video with indisputable proof that the error is occurring, it will at least leverage them to take you more seriously and give more time to do tests needed to try and replicate

Posted Images

Cpl_Punishment Senior Enthusiast

Cpl_Punishment

Posted
Posted
6 hours ago, Colossus said:

They aint that good either.  They have their issues. 

Other than the cam tower seal leak, most seem to be self-inflicted. 

Pinnacle Enthusiast

Pinnacle

Posted
Posted
11 minutes ago, Cpl_Punishment said:

Other than the cam tower seal leak, most seem to be self-inflicted. 

Thats been really addressed I havent seen it on a 2019 or 2020

  • Like 1
Icetracer Enthusiast

Icetracer

Posted
Posted

I had this same issue happen yesterday! 2020 Sierra 1500 SLT with 3.0l diesel. 800 miles on it. 
 

Once it stopped clicking, like 5 seconds long, I tried it again and it started. Very unsettling...

Kiwialaska New Member

Kiwialaska

Posted
Posted

I’m joining the no fire club.

 

2020 TB with 3500miles and 4 weeks old.

 

About a week ago it wouldn’t start, would turn over fine just not fire. I thought I ran it out of gas, I had dine 400miles on a tank but the gas gauge had 1/8 left and the computer said I had 90miles of range. I  got a jerry can and 2gal of gas and put it in then it started fine, drove to the gas station and put 18gal in. With a 24gal tank I should have had 4gal left when it wouldn’t start so I think the gauge and computer were right.
 

Then four days ago with 7/8 of a tank. It would turn over and not start again. Doing a bit of problem solving myself I figured there’s a vacuum is in the tank that the fuel pump wasn’t over coming (I can’t remember if the fuel pump came on when I opened the door or not). So I got out and opened and closed by the gas tank, then I started normally. It’s been at the dealer for three days now. Very very frustrating from a new truck. I was very close to buying a tundra but the chev was a couple grand cheaper. Kind of regretting that now.

KZ3 Enthusiast

KZ3

Posted
Posted

So far 1200 miles since they changed out the fuel pump module in my new TB and no issues.  Not a lot of miles, but at least it's better than the 200 it made it the first time. 

  • Like 1
mg2020at4 Enthusiast

mg2020at4

Posted
Posted (edited)

62 days out of service. Five attempts to fix. The last time they ‘fixed’ it I went to pick it up and it did it infront of the service manager. Spent a month trying to figure out what was causing the problem. Fuel control modules, steering column sensors, etc etc. All the while I am making payments. Now I finally initiated the process with gm regarding a buyback and that has been a month and a half long fiasco. Finally yesterday their ‘remedy’ is that they offered a field service tech to inspect the vehicle. A field service tech has been looking at the vehicle for two months. LAUGHABLE. 

 

Went out this morning and got this. 

 

GMC you have a problem with these vehicles and instead of doing the right thing you are screwing consumers. 

Edited by mg2020at4
  • 2 weeks later...
Pat Boles New Member

Pat Boles

Posted
Posted

I can now be added to this as well. 2020 1500 Sierra AT4 6.2L. I have had it 2 months, and just over 3,000 miles on it. I have the exact same issue. Attempted 4 times until the low battery light lit. It was towed to the dealership.

Majbu New Member

Majbu

Posted
Posted

I have the same issue with my 2020 Silverado in the last two weeks.   I have been able to let it sit a minute and it starts with the keyless remote.   The dealer is trying to replicate the problem today and let people know if they find a solution.  

tystaples Enthusiast

tystaples

Posted
Posted

I have the same issue, started yesterday on my 2020 Denali 1500 with the 6.2. I purchased the truck new the end of April and it currently has 4900 miles on it. Crank and crank with no start. I did eventually get it to stay running on the 5th or 6th go by pressing the pedal once it started to sound like there was some ignition taking place. CEL came on and I was sent an email from Onstar to get the truck serviced. I drove it another 120 miles with multiple starts and stops with no issues. I made the appointment and brought it in this morning and when the dealer tech was going to drive the truck in to the shop it wouldn't start for him so I had instant validation of the complaint.

 

This is what was relayed to me by the service advisor after 2.5 hours: 

*This is a known emerging issue they're working on with these vehicles and other GM models though this is the first one my dealer has seen.

*The tech had to do extensive electrical testing to send data back to GM engineers.

*GM doesn't know exactly what the problem is but the current fix is to replace the ECM and fuel pump assembly. Suspected issue is somewhere in the circuit between the ECM and fuel sender electronics.

*The good news is the the ECM is on the shelf. The bad news is the fuel pump is backordered so my brand new $70k truck can't be relied on to start when I need it to. I left it at the shop so it will sit in their way until they get it repaired which could be 5 weeks! 

 

I'm a former automotive engineer and manager for OEMs and tier 1 suppliers. I worked in electrical design, product improvement, quality and manufacturing. I currently own 4 auto repair shops as my 2nd career when I got tired of the stress and corporate politics. I'm telling you this because I have a pretty good insider view on how things work when problems happen. I will tell you with 100% certainty that people at GM, Ford, and Chrysler get VERY worked up when there is a problem with the trucks because they are the cash cow that drives sales for the entire brand. I'm sure this is getting a ton of attention to get a fix in place ASAP. I hope it happens soon because I'm pretty disappointed. I love my new truck and want to drive it... FWIW I traded in a 2018 Sierra 1500 SLT and had no issues in 60k miles. My 2013 Ram was basically problem free for 150k miles (only broken exhaust manifold bolts and dead stereo/touchscreen after 120k).

 

 

  • Like 4
Colossus Senior Enthusiast

Colossus

Posted
Posted
On 6/30/2020 at 3:14 PM, tystaples said:

 

I'm a former automotive engineer and manager for OEMs and tier 1 suppliers. I worked in electrical design, product improvement, quality and manufacturing. I currently own 4 auto repair shops as my 2nd career when I got tired of the stress and corporate politics. I'm telling you this because I have a pretty good insider view on how things work when problems happen. I will tell you with 100% certainty that people at GM, Ford, and Chrysler get VERY worked up when there is a problem with the trucks because they are the cash cow that drives sales for the entire brand. I'm sure this is getting a ton of attention to get a fix in place ASAP. I hope it happens soon because I'm pretty disappointed. I love my new truck and want to drive it... FWIW I traded in a 2018 Sierra 1500 SLT and had no issues in 60k miles. My 2013 Ram was basically problem free for 150k miles (only broken exhaust manifold bolts and dead stereo/touchscreen after 120k).

 

 

Very cool.  What type of auto repair shops do you own?  Also, welcome to the forums.  What kind of 13 Dodge did you have?

Pinnacle Enthusiast

Pinnacle

Posted
Posted
On 6/30/2020 at 4:14 PM, tystaples said:

I have the same issue, started yesterday on my 2020 Denali 1500 with the 6.2. I purchased the truck new the end of April and it currently has 4900 miles on it. Crank and crank with no start. I did eventually get it to stay running on the 5th or 6th go by pressing the pedal once it started to sound like there was some ignition taking place. CEL came on and I was sent an email from Onstar to get the truck serviced. I drove it another 120 miles with multiple starts and stops with no issues. I made the appointment and brought it in this morning and when the dealer tech was going to drive the truck in to the shop it wouldn't start for him so I had instant validation of the complaint.

 

This is what was relayed to me by the service advisor after 2.5 hours: 

*This is a known emerging issue they're working on with these vehicles and other GM models though this is the first one my dealer has seen.

*The tech had to do extensive electrical testing to send data back to GM engineers.

*GM doesn't know exactly what the problem is but the current fix is to replace the ECM and fuel pump assembly. Suspected issue is somewhere in the circuit between the ECM and fuel sender electronics.

*The good news is the the ECM is on the shelf. The bad news is the fuel pump is backordered so my brand new $70k truck can't be relied on to start when I need it to. I left it at the shop so it will sit in their way until they get it repaired which could be 5 weeks! 

 

I'm a former automotive engineer and manager for OEMs and tier 1 suppliers. I worked in electrical design, product improvement, quality and manufacturing. I currently own 4 auto repair shops as my 2nd career when I got tired of the stress and corporate politics. I'm telling you this because I have a pretty good insider view on how things work when problems happen. I will tell you with 100% certainty that people at GM, Ford, and Chrysler get VERY worked up when there is a problem with the trucks because they are the cash cow that drives sales for the entire brand. I'm sure this is getting a ton of attention to get a fix in place ASAP. I hope it happens soon because I'm pretty disappointed. I love my new truck and want to drive it... FWIW I traded in a 2018 Sierra 1500 SLT and had no issues in 60k miles. My 2013 Ram was basically problem free for 150k miles (only broken exhaust manifold bolts and dead stereo/touchscreen after 120k).

 

 

Good to see another one from the industry,  Have you seen camshaft scaring on the Hemis from 2009 to 2014?  TIPM was a big problem and still havent been changed out.  

NHM25 Enthusiast

NHM25

Posted
Posted

I may have everyone beat on my timeline to frustration. Just purchased new 2020 GMC AT4 from Van GMC Buick in Scottsdale 3 DAYS AGO! The assembly date is June 20, 2020! It ran great the first two days... day 3, won't start. Total of 170 miles on the truck. Same issues that everyone has noted. Came outside, tried to open her up with the key fob and the battery was completely dead. Had to open manually. Push start did not function, no power whatsoever... basically a $65k brick in my driveway.

 

Connected battery to wife's Explorer and got the dash to light up but it wouldn't start. Tons of error messages. Kept trying to start it and it finally lights up... but was running very rough with knocking. This morning, started it up and it ran great. Dropped it off at dealer and they tell me there are no codes, it's running fine, the alternator and the battery look good. So I send them the videos below and a link to this thread... No word yet but will keep you all posted. So incredibly frustrating. Love the truck but now have to worry about this... what happens if it doesn't start when my family and I are in the middle of the woods camping/hunting? Ridiculous. 2020 could not get any worse. 

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

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,949
    Total Members
    8,960
    Most Online
    Gkistler
    Newest Member
    Gkistler
    Joined

  • Who's Online   2 Members, 0 Anonymous, 892 Guests (See full list)

  • Latest Articles

  • Posts

    • Gkistler
      2015 Sierra Denali L86 cyl 5 misfire at idle

      By Gkistler · Posted

      Hi friends - first time poster. I have a 2015 sierra Denali with 150k miles, I’m the second owner and she’s given me 75k of great service. I run a pulse AFM disable device. Starting Thursday when I exited the freeway after a short local ride it started idling rough, with an obvious misfire shake and was down on low end power.  I got it home and hooked it up to my scannner and found no codes but in live data a pretty bad misfire on cylinder 5. I replaced the coil, plug and wire with all new OE replacements (Delphi gn10165 coil, acdelco wire and 41-168 plug). It’s still behaving the same way after firing the parts cannon at it.   I know cyl 5 is a non AFM cylinder so I am not thinking this is AFM related but I’m kinda at a loss. injector? Bent pushrod? It’s running too well over 1k rpm to suggest those IMO. Has anyone chase this issue before and what was it? Any suggestions? 
    • zibzer2
      Pulsating Noise 4Cyl Mode

      By zibzer2 · Posted

      2017 Silverado L83 5.3l 6speed transmission Hello, not a new member but havent posted in a while and my old signup info isnt working so had to create a new account. anyways, I have an issue with my truck and hope someone can spread some light on whats happening: -when it goes to 4cyl mode it makes a clunk sound (but not when coasting or going downhill) -when in 4 cyl mode and under load it makes a load pulsating sound (not a tick). -goes away completely when in M5 gear or when plugging in an AFM delete. Im guessing it is one of 2 things but im not convinced of either to be honest. 1. lifter stuck in v8 mode 2. torque converter shudder realistically it doesn't seem like the TC as there is no physical vibration , and it never happens in v8 mode. but maybe? and wouldnt a lifter make a sound whether with load or not? any ideas let me know please. thank you!  
    • Chuck FB
      Some Assembly is Required

      By Chuck FB · Posted

      Which has made me wonder with the various engine failures of a few brands in the last few years, is it sub par materials such as lifters etc causing failures, or bearing clearances on the crank etc or perhaps bad designing of an engine physically or causing too much load on the components due to the hp/torque they can push out of them. Or is the oil viscosity and additive package of current oils or a lack of oil flow by an oil pump not able to supply sufficient oil at idle or under high load at low rpm. Or is it every item I listed that combined together has pushed the limits so far to the left that there is hardly a margin of safety left and add in some fuel dilution and too long of an OCI and premature engine failure is the result ?. 
    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      He is not saying that an SAE *W20 will have more viscosity than a *W40 due to MORE VII polymers. He is saying that although multiple *W40 may post in the PDS the same or similar 100 C and 150 C viscosities that the blenders choice of modifier TYPE and AMOUNT to get his chosen base to grade will not give identical real world viscosities in shear and at temperature. All will pass the SII test but not all will pass the 100 C HTHS (unpublished value) testing the blender does and relies on to get the required by law "percentage improvement' referenced to his last great work.    Tis the problem with the lie. Once told others are required to support it. 
    • PunchT37
      Parking Brake - Automatic Engagement Questions

      By PunchT37 · Posted

      I have a `25, 1500 that auto sets on incline. Never knew that at first. I have the electronic shifter. Just think if it didn`t do that? Unlike a mechanical shift that you can muscle out of park, how would you get this thing out? That would be a problem.   What I found out later is, I don`t have to push the button to release. Just put it in gear.   Setting parameters? Don`t know if it`s possible.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...