Jump to content

Bad injectors

6TEEN5.3

By 6TEEN5.3
in Troubleshooting & Recalls

 Share

Recommended Posts

Beer Belly Enthusiast

Beer Belly

Posted
Posted

I had the same issue with CEL and Stabilitrac Light on....truck ran like poop. Replace the Left Bank Lifters. When it happened the first time, it cleared before I got to the dealer, and they checked codes....1-3-5-7 Injectors Misfire #7 6,900 times, no repair made being the truck was running fine when I brought it in

  • Replies 50
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Grumpy Bear
Grumpy Bear

How hard does this dead horse need beating before we understand that hangnails and the common cold are not AFM related? Before you know it TPMS failures and baldness will be "AFM related". 

Dnt
Dnt

THREE BAD Injector's sounds a bit silly to me. There was some new doctor TV series show on the other day that caught my attention when a guy was doing an analogy trying to explain to the new kid at th

Trey Grimes
Trey Grimes

I had same issue.  3 bad injectors, said flow insufficient.  Cost me $1700+ for repair.  This was at just over 40K.   Warranty did NOT cover it.  The entire experience with the dealership, GM and this

Posted Images

TJay74 Senior Enthusiast

TJay74

Posted
Posted
7 hours ago, Trey Grimes said:

I had same issue.  3 bad injectors, said flow insufficient.  Cost me $1700+ for repair.  This was at just over 40K.   Warranty did NOT cover it.  The entire experience with the dealership, GM and this vehicle has made me not want to have another. 

I would have argued hard with the dealer on this, injectors are part of the engine I think should be covered under the 5yr/60K powertrain warranty. 

The injector issue isnt anything new, been dgoing on since the new DI engines came out. There are 3 different injectors for the DI engines, I just had one replaced on my 2016 Sierra 6.2 that only had 22k miles on it. Took the dealer about a week to figure it out and get the right injector ordered for the truck.

  • Like 1
Ebr44 Enthusiast

Ebr44

Posted
Posted

Now that something I didnt know, the injectors are not covered under the power train warranty.  So they are just covered under the bumper to bumper warranty?

batman900 Enthusiast

batman900

Posted
Posted
1 hour ago, Ebr44 said:

Now that something I didnt know, the injectors are not covered under the power train warranty.  So they are just covered under the bumper to bumper warranty?

That doesn't makes sense to me either. It's part of the engine.......

  • 5 months later...
martinmc75 Enthusiast

martinmc75

Posted
Posted

I am having the same problem with my 2016 it started about 4 months ago with only 47k miles now; after replacing spark plugs, o2 sensors and going crazy... dealer told me I have a bad injector # 7 however the recommend to replace all 8 injectors and while we are at it replace the fuel lines at a "discounted" price of only $1800.  ( it stinks to be asked to pay that much for truck you are still making payments on)

The service adviser pulled all the lame excuses; he even told me I have been putting some bad gas in there, I told him that it was the same gas that goes into the rest of the cars in my household and none of the other cars have any issues. (a Ford and a Honda that are running like champs with more miles)

Gordon and Partners is a law firm that has a office in the same building where I work; they have filed class action law suet in the past against car makers before for problems such as this one... as son as get around to it I will let you all know if we have a case and see if you would like to participate.

Rchsfootball New Member

Rchsfootball

Posted
Posted

Truck had to be towed and diagnosed with bad ignition coil. It was replaced and the dealer ran the codes again and said that there is a problem with the injectors. Don't know whic ones or how many and it was diagnosed during a cold start.  Not under warranty either and recommended either replacing all of one side for $1400 or all 8 for $2000. The truck has 35,000 miles on it! I was looking to see if this has been a problem.  2015 Silverado. 

Matt Palmquist New Member

Matt Palmquist

Posted
Posted

Dealing with same thing right now. Service department says injectors arent covered under powertrain on 1500 but are on 2500. Makes sense:( Mine is 2017 with 6.2. Local shop said it was injector 4 and dealer is showing 2 and 6 via diagnostics  

 

Has anyone just kept driving and not fixed? Has anyone had issues with other injectors going bad after fixing the ones that show misfires in diagnostics? Labor is steep so debating between replacing all vs ones misfiring vs not at all.

Rchsfootball New Member

Rchsfootball

Posted
Posted

We opted to keep driving. Picked it up today after paying almost $700 for ignition coil and then dead battery. We'll see what happens but no check engine light and drives fine right now. 

Matt Palmquist New Member

Matt Palmquist

Posted
Posted

Well, I bit the bullet I guess and going to replace them all. More than I want to spend but 3 cylinders have shown significant misfires so I am afraid if I fix those and not the others I'll be back in the shop before long. 

 

Not real pleased with GM on this. Seems to be a common issue from what I have read. 

SS502 Senior Enthusiast

SS502

Posted
Posted (edited)
19 hours ago, Matt Palmquist said:

Dealing with same thing right now. Service department says injectors arent covered under powertrain on 1500 but are on 2500. Makes sense:( Mine is 2017 with 6.2. Local shop said it was injector 4 and dealer is showing 2 and 6 via diagnostics  

 

Has anyone just kept driving and not fixed? Has anyone had issues with other injectors going bad after fixing the ones that show misfires in diagnostics? Labor is steep so debating between replacing all vs ones misfiring vs not at all.

 

35 minutes ago, Matt Palmquist said:

Well, I bit the bullet I guess and going to replace them all. More than I want to spend but 3 cylinders have shown significant misfires so I am afraid if I fix those and not the others I'll be back in the shop before long. 

 

Not real pleased with GM on this. Seems to be a common issue from what I have read. 

You have a 2017...are you over the 36,000 miles? I thought they would be covered under the 3/36 but not the 5/60 PTW?? A screen shot of a conversation with my service manager about injectors...he owns a Titan, thus the comment LOL

0AD7B860-CAD1-4D50-89DB-A83EC7657B7B.png

Edited by SS502
Matt Palmquist New Member

Matt Palmquist

Posted
Posted

Unfortunately yes. Light came on first time at 36070 or something. Called the gm dealer and didn't catch anyone as it was friday. Did a bunch of driving over the weekend so was way past 36k by time they checked it. I have been living with it since. I put on lots of miles this fall and am up to 54k. It really isn't effecting anything yet but is an annoyance. Remote start doesn't work obviously and looking at that light on a newer pickup is aggravating:) 

SS502 Senior Enthusiast

SS502

Posted
Posted
Just now, Matt Palmquist said:

Unfortunately yes. Light came on first time at 36070 or something. Called the gm dealer and didn't catch anyone as it was friday. Did a bunch of driving over the weekend so was way past 36k by time they checked it. I have been living with it since. I put on lots of miles this fall and am up to 54k. It really isn't effecting anything yet but is an annoyance. Remote start doesn't work obviously and looking at that light on a newer pickup is aggravating:) 

Wow. sorry to hear that :(

  • 1 month later...
Jimenez44 Enthusiast

Jimenez44

Posted
Posted

Just drove 400 miles with no issues yesterday on my 2015 Silverado 1500 with 70k miles. Turned it on today and engine light was on. Took it by AutoZone to have it read, and it showed 3 error codes dealing with fuel injectors. Running some cleaner through it, along with 93 octane to see if it’ll help. Will call GM and see how much it would be to change them all out. If it’s ridiculous, I’ll do it myself and keep y’all updated with costs, parts, time, steps, etc. 

  • 3 months later...

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

    • richard wysong
      Gas Prices

      By richard wysong · Posted

      I haven't seen diesel for less than $5.30 anywhere in my area
    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      The not as clean as one would assume theme with the new engine oil, that reminds me of comments over the years with mechanics not always being so on board with filling an oil filter, not from the center anyway due to that typically being the clean side of the filter, danger of some contaminant falling into the filter if not careful but the realization now that the oil may not be as pure as one had assumed it would surely be. Yes it would be possible to fill from the small holes but that means messing with something to prop open the anti drain back valve if the filter is so equipped and not damage that valve in the process. Me, I have hardly ever prefilled an engine oil filter however I have prefilled diesel fuel filters with a filter on a fuel bulk tank and for anyone that has messed with diesel engines with filters and units that have a limited or no way of priming them, putting on a dry filter is a bad day to say the least with those crappy systems. But anyway back to not so clean engine oil, indeed perhaps its not so bad after all that I have not made a practice of prefilling oil filters.    As Grumpy Bear commented on keeping things clean, that I really have to wonder what the typical practice is at a dealer or any other shop that changes engine oil, do they make sure to wipe or wash off the oil plug and certainly if it fell into some gunk or onto a dirty floor, or that they wiped the filter mounting flange and didn't go and use some dirty rag and end up adding dirt to the inside of the head of the filter mount. Or be careless in how they stored or handled the new filter and if they were bumping into items under the vehicle with the filter opening facing up and having dirt drop right into the filter and if so right into the threaded center that is on the clean side. The top side, did they clean away the built up gunk that may be around the filler before removing the cap or to be really careful at that point that something right close to the filler hole that was hidden under the caps flange won't fall into the engine. Or did they clean the funnel or was that just laying there covered in oil from the oil change before and dust kicked up from sweeping the floor stuck to the oil and now that will go running into the next persons engine due to just not cleaning the funnel as "they won't know anyway" attitude as that young guy is more worried about taking a break so he can go outside and smoke a joint. Just random points that came to mind when I think about what some hired personnel may do that the shop foreman has no idea of or perhaps the whole attitude of some shops may be "eh ... who cares, they will never know the difference anyway".  
    • CamGTP
      Gas Prices

      By CamGTP · Posted

      $3.69 for 87 octane.   $4.24 for Diesel in town.
    • Atlas
      OCI, not when but why?

      By Atlas · Posted

      On the subject of OLM, Gm's OLM tool may be more "informed" than others brands. I recall OLM's in mid-2000's Chrysler products literally counting down a set number of miles. That's all the OLM appeared to be.    I would actually expect GM to be able to explain the parameters that their OLM takes into account from a high level. No, I would not expect them to disclose their software coding or data analysis around their parameters.   So we're talking about two different topics, so to continue the subject on the other one, I'd be curious to know how much "standard particulate matter" in fresh oil is able to be filtered at first start by a fresh oil filter. How much particulate matter is enough to "matter"?   I.e. how much of a "lever" do we think this equates to (variability in particulate content, in fresh oils, between different makes/brands, some which filter less, and some that filter more).   We can say that more particles = more wear = shorter engine life as a logical statement and use that data with a little marketing to scare people into selecting a more refined/filtered oil. Using a similie, is this like deciding to forego two alcoholic drinks in a lifetime because we're worried about the potential impact on lifespan? Are there numbers which translate the ISO test results into a quantifiable increase in wear for a given engine/use case?
    • chris21
      Brand new to this forum. Questions about re-gearing my 26’ HD

      By chris21 · Posted

      I'm pretty sure it doesn't actually recalibrate the speedometer it just changes the wheel speed sensor inputs to the computer. The truck still thinks it has stock tires.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...