Jump to content

Won't start ?

B.R.67

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

 Share

Recommended Posts

khays Enthusiast

khays

Posted
Posted

Did it to me on the 395 heading towards Mammoth last weekend. Hats off to the guy in the Trail Boss that happened to be right behind me who recognized the noise and came over, said its happened to him 3 times in 15k miles. Started up again after about 4 minutes, but my confidence in taking this thing (with <4k miles) off the beaten path has just plummeted.

  • 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

khays Enthusiast

khays

Posted
Posted
On 12/29/2020 at 1:58 PM, Steve-2019 said:

Read this and decide whether you want to do this or your dealer tech.  It's very easy IMO, but be careful.

 

Bulletin (PIT5756).pdf 1.02 MB · 109 downloads

I am very willing to give this a try, however i'll be pissed if the truck that I bought last month wasn't torqued to spec, if the issue had already been identified and "resolved."

2021rado New Member

2021rado

Posted
Posted (edited)

Add me to the list. Happened Tuesday morning 400 miles from home at a hotel. Cranked over 3 different times for about 10 sec each. Got out to load luggage and back in and it started. Checked the fuse box bolts with the torque wrench at 40 in/lbs. All 4 were less than the 40. Tightened all to 53. Hope this solves any future issues. Called customer care and started a case to document what happened.

Edited by 2021rado
  • 2 weeks later...
Dirk13 Enthusiast

Dirk13

Posted
Posted

I had a crank, no start at 1250 miles. 2021 with LM2 built in March 2021.

Is the problem still loose bolts on the fuse box? I find it hard to believe GM has still not corrected this in manufacturing. 

Pjsrubicon New Member

Pjsrubicon

Posted
Posted

2021 Chevy 1500 3.0 Duramax. 4000 miles. Have had issues with truck randomly not starting, (cranks but won’t start). 4 times so far and every time was different, cold start, warm engine start......seems to want to start after 30 minutes or so.

Dealer is not aware of any other trucks having this issue.

GStrx450r New Member

GStrx450r

Posted
Posted

Well Well Well. Looks like I'm not the only one GM has never seen this happen to before. On April 13, 2021 my 2021 Custom Trail Boss (5,000 miles) would not start. It sat for less than 18hrs from driving in the rain the previous day and had towed to the dealership. Next day they said they went to go look at it and she started right up. After looking at it for a week they could not find a single code or anything that could possibly be wrong. After so called going back and forth with GM engineers they supposedly looked at every connection and ground as well as do a hardware update. Well here it is May 4th and again it did not start as I was out the door at 0530 for work. Waited until the service department opened and talk to the girl who handled my file last time and said there is nothing she could do and GM does not have a repair at this time. All I can do is make the call to have it towed in and they will charge battery if needed. Damn thing will probably start by the time I get home. Why the hell do I have to worry if my $60k truck is gonna start?

singlespeed Enthusiast

singlespeed

Posted
Posted (edited)

Same thing on my new 2021 Sierra Elevation with the 3.0L duramax.  One time at about 500 miles, the next time at 4,000.  Both times I had my socket set with me.  I removed the battery cable for a few minutes and it started right up after that.  The last time at 4,000 miles I torqued the x50a fuse block down.  Seemed like they were way loose.  Now have about 6,000 miles on the truck and it hasn't happened again. 

Edited by singlespeed
MikeBurke New Member

MikeBurke

Posted
Posted
On 5/2/2021 at 8:31 PM, Pjsrubicon said:

2021 Chevy 1500 3.0 Duramax. 4000 miles. Have had issues with truck randomly not starting, (cranks but won’t start). 4 times so far and every time was different, cold start, warm engine start......seems to want to start after 30 minutes or so.

Dealer is not aware of any other trucks having this issue.

My truck is doing the same thing. My dealer said the same thing. It is pretty amazing we know this is an issue that is not uncommon with the vehicle but the dealers do not.

Pjsrubicon New Member

Pjsrubicon

Posted
Posted

Dealer checked out my truck, said they could not get it to duplicate no start.....No kidding 🤷‍♂️. They also said the fuse box recall issue didn’t apply to this because my truck would actually crank, vehicles with bad fuse box wouldn’t crank. At least this is what he tells me. 

Next time truck won’t start I am going to disable the auto stop switch as I’m thinking it has something to do with the alto stop feature.

 

khays Enthusiast

khays

Posted
Posted
3 minutes ago, Pjsrubicon said:

Dealer checked out my truck, said they could not get it to duplicate no start.....No kidding 🤷‍♂️. They also said the fuse box recall issue didn’t apply to this because my truck would actually crank, vehicles with bad fuse box wouldn’t crank. At least this is what he tells me. 

Next time truck won’t start I am going to disable the auto stop switch as I’m thinking it has something to do with the alto stop feature.

 

Did you happen to ask them if the torque on the fuse box was up to spec?

Resqu2 Enthusiast

Resqu2

Posted
Posted

Well add me to the growing list I guess, 2020 Z71 RST, only 3500 miles. We went to take to to dinner and it just cranked and cranked. It never started. Just shook my head and put the garage door down and jumped in my 2019 Honda Civic and went to dinner. On the way down to eat my truck texted my phone, said it needs service within one day. Got back in and tried it again and after cranking for a good 10 seconds it started and seems to run ok but thankfully a check engine light is on so it kicked something. It will go to the dealer on Monday. I will update here after I hear back. 

Pjsrubicon New Member

Pjsrubicon

Posted
Posted
On 5/6/2021 at 6:12 PM, khays said:

Did you happen to ask them if the torque on the fuse box was up to spec?

I did not.....they said the fuse box issues didn’t apply to my concern. I will check the torque myself. 

Brandon C New Member

Brandon C

Posted
Posted

Possible fix!!!

 

My 2021 Sierra 1500 AT4 failed to start twice in the last month. Each time I waited several minutes and it eventually started. I just got back from the dealer and they found two codes in the history (P0300 and P12A6). They referenced service bulletin #20-NA-218 and reprogrammed the ECM. 
 

supposedly this is the fix for the starting issues. I will update if it happens again. 
 

 

Brandon C New Member

Brandon C

Posted
Posted
On 5/6/2021 at 6:08 PM, Pjsrubicon said:

Dealer checked out my truck, said they could not get it to duplicate no start.....No kidding 🤷‍♂️. They also said the fuse box recall issue didn’t apply to this because my truck would actually crank, vehicles with bad fuse box wouldn’t crank. At least this is what he tells me. 

Next time truck won’t start I am going to disable the auto stop switch as I’m thinking it has something to do with the alto stop feature.

 


 

Check service bulletin #20-NA-218

Jmartin2 Enthusiast

Jmartin2

Posted
Posted

Anyone experience a permanent fix with this issue? My truck has the 3.0 duramax and I’m wondering if it’s potentially a different issue. Almost seems like the truck isn’t getting fuel while attempting to start. Always stars on the second attempt and never throws a code (which makes it real fun when dealing with technicians). 

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

  • Latest Articles

  • Posts

    • revmanii
      Disable DRL's

      By revmanii · Posted

      I'm surprised nobody seems to offer a solution like the start/stop device I put in my new truck. Remembers my setting when shutdown. And while it still starts up in start/stop, it stores/evaluates what mode it was in when shut down and will change it whithin a second or 2 of startup. It'd be nice to have something like that for the DRLs.
    • btm
      Sunroof Drain Hole Entry & Exit Location (w/ Pictures)

      By btm · Posted

      2015 Sierra 1500 here. Leaks from the sunroof to front driver side and soaks carpet. How do I fix this? Thanks!
    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      I will be doing that for sure, but I need to solve who has/ where I can find a bidirectional scan tool that will support OBD 1.5. I'm kicking myself because I ebay'ed a Snap On MT2500 that I didn't think I'd ever need anymore. D'oh!! I'd rather not buy another, so I'll contact a few local shops to see if they have one and how much they'd want to do the procedure. I'd rather have the ability to do it myself... I wish there was a modern tool that could do it all, but I'd have no idea what to buy.   The theory with the pulled timing is that it mimics a rich condition. The delayed spark causes incomplete burn and the O2 sensor picks up low oxygen levels. That's interpreted as a rich condition so the PCM pulls fuel and that shows up in the deeply negative fuel trims.
    • Chuck FB
      Joke Thread

      By Chuck FB · Posted

      An ultra wealthy man had the most beautiful daughter. But, there was a problem. Everything she touched would melt in her hands. No matter what, Metal, Wood, Stone. Anything she touched would melt. She could not feed herself. Because of this, men were afraid of her. Nobody would dare marry her. Her father was despaired. What could he do to help his daughter? He consulted doctors, scientists and anybody who could solve this problem. Finally one of them said, "If your daughter touches one thing that does not melt in her hands, she will be cured." He was overjoyed and came up with a plan. The next day, he held a competition. Any man who could bring his daughter an object that would not melt in her hands would be given billions of dollars to marry her. Three extremely intelligent and handsome young men took up the challenge. The first brought a very heavy steel rod, But alas, when the she touched it, it completely melted in a matter of seconds. He sadly went away. The second brought a beautiful diamond, knowing diamonds were one of the hardest substance in the world and would not melt. But alas, once she held it in her hand, it melted. He too was sent away disappointed. So now, there was one left He was very nervous & sweating. He approached the daughter & said, “put your hand in my pants pocket and feel what is in there." She did exactly what he asked. She felt something very hard. She held it in her hand, squeezing it as hard as she could. It did not melt & remained extremely hard. Her father was overjoyed. Everybody was overjoyed. She was finally cured. Nothing never, ever melted in her hand again. They married and they both lived happily ever after, raising a wonderful family. Question: What was in the the groom’s pants pocket??? Answer below ↓ M&Ms of course! They melt in your mouth, not in your hand. What on earth were you thinking?
    • asilverblazer
      Wow I'm in a pickle. (Broke down truck) and a story.

      By asilverblazer · Posted

      There's a bunch of tea leaves that you've read, but in any case the delayed timing is unusual. Not sure how that relates to the rich at idle vs. 'normal' while driving.   If you're in this deep, might be worth investigating, and re-learning the sensor. What have you got to lose? Plus, it properly fixes the timing cover leak.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...