Jump to content

2500HD Starting issues

SilentBob

Recommended Posts

SilentBob Enthusiast

SilentBob

Posted
Posted

Hello everyone. New to the forum, but have been lurking for awhile. I just bought a HD Duramax last week and have been having some issues starting it after its already hot, that I was hoping someone had an answer on.

 

For example, I was driving around on Friday doing errands and when I went to Checker to order a dashmat and was inside for about a half an hour the truck wouldnt start when I came back. I had to leave it be for about another hour and then it fired right up. All three times that it has happened I just leave it alone for an hour or two and when I come back all is well. Now I know this isnt a starter issue since the truck cranks, but just doesnt fire up. Im fairly certain that its not fuel related as it runs just fine when it does start. What else is there on a Diesel?

 

SB

SilentBob Enthusiast

SilentBob

Posted
  • Author
Posted

Reeeeally? Would it still run normally when it did fire up?

 

I am still on my first tank after the dealership filled it for me, so I didnt see what got put in. Also, do you think that would cause long term damage?

 

SB

walkerkd Enthusiast

walkerkd

Posted
Posted

i wouldnt be surprised if they put gas in first.. i had a ford like that . the smart guy at the dealer put gas then figured it out and top it off with diesel.. anyway had ####... there are some real smart people at some dealerships...

SilentBob Enthusiast

SilentBob

Posted
  • Author
Posted

Well from what I was told it seems that a part of the GM alarm system was to blame. ??? Whether or not that is BS, I dont know. Hopefully that will take care of things though. I should be able to pick up the truck today or tomorrow and find out for myself.

 

As for the lot boys..... Irregardless of them putting gas or diesel in the truck, when the took it to be detailed, they ran it into something. I have paint work scheduled for the 16th.  :plainsmile:

 

Off to a great start so far with this truck.  :angry: It can only get better from here.

 

SB

odoh Enthusiast

odoh

Posted
Posted

Sure, you can say that. If I said it, it would find a way to get worse :sarcasm:  ~ odoh

SilentBob Enthusiast

SilentBob

Posted
  • Author
Posted
Sure, you can say that. If I said it, it would find a way to get worse :sarcasm:  ~ odoh

Geez Odoh, you sound even more negative than me. :D I didnt think that was possible.

 

SB

SilentBob Enthusiast

SilentBob

Posted
  • Author
Posted

I stand corrected, it can get worse. I drove it all weekend out of town and today at lunch I went to drive it and it wont start at all. Hadnt touched it in four hours. So far this sucks.

 

SB

Shaners Senior Enthusiast

Shaners

Posted
Posted

I hope you get this corrected...  You paid way too much money for these kinds of problems.  Maybe a new computer is in order...

SilentBob Enthusiast

SilentBob

Posted
  • Author
Posted

Man Im telling you, I dont know what needs to be replaced, but it damn sure better be done this time. I just checked AZ lemon laws and it looks like I have to have 4 repair attempts on it before I can call it quits. So I have to endure this crap one more time after this if I am going to use that law.

 

In other news, they fixed the lot damage..... Kind of. The original damage to the fender flare looks ok now, but it looks like a blind man removed it and put it back on the truck. Nice work around all the bolt holes.

 

I am just about niced out. The service advisor has been great, though her partner there has been a real dick. So Id really hate to go scream at her, but jesus Im getting put into a grand prix or something while my $43000 truck gets hosed around with by the mechanic monkeys. They also left taco sause on the console when I picked it up the time before last. Im so pissed Im not ever sure Im making sense anymore. So if this rant is too inane, sorry about that.

 

SB

  • 3 months later...
Keith_S New Member

Keith_S

Posted
Posted

I have a 2001 1500HD Crew Cab with the 6.0L.  Had a similar problem.  I saw your post and took it with me when I went to the dealer to show them.

 Truck always ran and started fine until I went over 100 miles straight.  After 100 Miles, if I shut the truck off, I could not start it.  Engine would just crank and crank.  Didn't sound like it had any spark or fuel.  I waited about 10 minutes, then disgustedly, I tried to start it and low and behold, it fired right up and ran fine.  Managed to duplicate it several times on long trips.  If I drove 200+ miles straight, I had to wait 20-30 minutes before truck would start again.

 1st trip to a dealer while travelling in Georgia revealed they had no idea what it was.  They said maybe a fuel filter so replaced it.  Got home to Virginia Beach and headed straight to the dealer.  They were good enough to loan me a car and keep the truck.  100 mile round trip by their service rep and he shut the engine off and THANK GOD, it wouldn't start.  It also saved several codes:  

1.  Loss of Communications - U1041

2.  Loss of Communications - U1026

3.  Crank Sensor Code - P0335

 

 Tech assist was called and they explained all cases for this code required new crank shaft sensor.   Sensor was replaced under warranty and no problems yet.  Drove 105 miles, shut the truck off and started right back up.

Service guys said the Crank Sensor monitors crank shaft and shuts down all engine functions if an imbalance is detected, or if the crank stops moving.  Supposed to save the engine in the case of a catostrophic failure.  They also said they have heard of the sensors getting lose and shutting vehicles down while driving.

 Don't know if this might have been the problem, but it seems to have fixed mine.

BDBWTE Senior Enthusiast

BDBWTE

Posted
Posted

I'm thining your fuel could be FUBAR and the computer is seeing water or something in it....I honestly don't know....I do know that is a big problem and that I would take that truck and tell them to either fix it and warrenty it, or give me a new truck...that's BS out of a new truck...

Just my $0.02

Archived

This topic is now archived and is closed to further replies.

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   4 Members, 0 Anonymous, 349 Guests (See full list)

  • Latest Articles

  • Posts

    • PhilB
      No 12v outlets in 2026 gmc Sierra

      By PhilB · Posted

      It is possible to add your own 12v outlet to your truck.  Check out this video:   I verified via GM Upfitters that pin 31 is the same on the 1500 trucks.  The wire is GM part number 84779405.   You can get the GM 12v outlet from Amazon  https://www.amazon.com/Genuine-Accessory-Receptacle-25774623-13549530/dp/B0F1H9YRGF EWAY 12 Volt Power Adapter for GM   https://www.amazon.com/EWAY-Chevrolet-Silverado-Cigarette-Ignition/dp/B0915RRW6Q/ref=sr_1_1?   I just haven't figured out a good place to put the 12v outlet in my truck.   Some people are getting USB-C to 12V adapters  https://www.amazon.com/WYMECT-Cigarette-Lighter-Socket-Adapter/dp/B0F87WNQKB/ref=sr_1_1_sspa? Not sure if they provide the correct amperage that a device like a tire inflator would need.  
    • Core-Lokt
      Wiring Help, Please

      By Core-Lokt · Posted

      Thanks; I looked there a few minutes, and I think I can find something. I really never looked there, as I thought it was stuff like PTO/aftermarket bodies/accessories like snow plows.
    • 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. 😉

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...