Jump to content

Fuel injector replacement

bronco351

By bronco351
in Engines & Drivetrain

 Share

Recommended Posts

Hillwood Enthusiast

Hillwood

Posted
Posted
On 5/1/2019 at 7:09 AM, 2015BassMan said:

Yeah I get that but there are a lot of injector failures.  These things aren’t supposed wear out likes tires.   You’d think you’d get 100K plus miles before they start failing.  Not 20-40k miles.   Plus dealer said they do not show up under the code for drive train warranty.  So they are out of pocket. And they aren’t cheap at all. Pay $50k for a truck and I have a 2004 Cavalier that still runs like a top with 140k miles on it.  I paid 1/4 the price for it and it’s ran perfect.  

Did you get those injectors replaced?

  • Replies 39
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Nitrousbird
Nitrousbird

Don't buy "refurbished" high pressure fuel injectors.  Refurbished = a used injector someone might have wiped the grease off of it.  There is no refurbishment of the injector.  

bronco351
bronco351

It is a 2014 silverado 1500 with the 5.3L.   Sounds like I'll be brining it to a mechanic. Thanks

2015BassMan
2015BassMan

I'm having to do the same in my 2015 Sierra 1500 with the 5.3L L83 motor.  I went to eBay where they are selling refurbished OEM injectors.  There compatibility chart said I was buying the right injec

Posted Images

tbarn Senior Enthusiast

tbarn

Posted
Posted

The guy didn't replace the high pressure lines. OK if it's his car but should at least mention it if he's going to blast it over the net. Replacement required anytime they are removed.

  • 2 weeks later...
2015BassMan Enthusiast

2015BassMan

Posted
Posted

Well I did the deed this weekend.  Here’s the video. Truck actually idles smooth now and no hesitation when I accelerate.  There’s still an issue when I’m cruising.  50-60 mph coasting I accelerate and the truck bucks a little.  Doesn’t feel like injectors.  Besides they are all new and there’s a noticeable improvement.  Here’s the video I promised.  Hope it helps.  

 

2015BassMan Enthusiast

2015BassMan

Posted
Posted
On 5/18/2019 at 5:17 PM, tbarn said:

The guy didn't replace the high pressure lines. OK if it's his car but should at least mention it if he's going to blast it over the net. Replacement required anytime they are removed.

I talked to GM service about that.  They said it is not necessary to replace the piping the injectors are connected to.  They are machined metal.  There’s nothing on them compromised during removal and re-installation.  You’re welcome to waste your money on replacing them.  He didn’t and neither did I per GM service tech.  

tbarn Senior Enthusiast

tbarn

Posted
Posted (edited)

Per Gm service info.

Install the fuel feed pipe. Fuel Feed Pipe Replacement

Note:

    "Do NOT reuse the fuel feed intermediate pipe. If the fuel feed intermediate pipe fittings are loosened or the pipes are removed, the pipes MUST be replaced".

 

 

Edited by tbarn
2015BassMan Enthusiast

2015BassMan

Posted
Posted
1 hour ago, tbarn said:

Per Gm service info.

Install the fuel feed pipe. Fuel Feed Pipe Replacement

Note:

    "Do NOT reuse the fuel feed intermediate pipe. If the fuel feed intermediate pipe fittings are loosened or the pipes are removed, the pipes MUST be replaced".

 

 

So are they referring to the bigger piping the injectors are mounted to or the smaller lines that feed from the high pressure pump to the rails?  The ones from the pump to the rails I could see replacing since they are a compression style fitting.  But again I used the existing ones, torqued and ran the pump to check for leaks.  Didn’t see any drips so I just reused the existing ones.  

tbarn Senior Enthusiast

tbarn

Posted
Posted

From the pump out. High pressure. I'm just saying that the guy with the video should have mentioned it in passing. Replace the lines or not. Doesn't matter to me. They aren't going to burst. But still a potential safety/odor concern. I'm sure most in the diy/independent shops don't replace them but if someone is going to blast thier video over the internet, they should at least mention that the lines are supposed to be replaced.

JONBLARC7 Enthusiast

JONBLARC7

Posted
Posted

Anybody know how to swap the bolts that hold down the fuel rails to the block.  I pulled my rails and injector for a cam swap on my L86 and the injectors where stuck in the block so I bent the fuel rails getting them out.

 

I have all the injectors swapped but the new fuel rails didn't come with the bolts installed in them.  And the bolts on the old rails don't just unscrew out.

 

 

7bfe68cf_f13b_4856_9214_6cf8112ac642_95697d8a6ee762d56abab92e5357e89b041c6bee.jpeg

JONBLARC7 Enthusiast

JONBLARC7

Posted
Posted

Any techs out there know the answer to the above.  I got the rest of my motor together now.  I'm going to try and press them out today after work.

JONBLARC7 Enthusiast

JONBLARC7

Posted
Posted

For anyone else that run across this thread and needs to know how to get those bolt out of the fuel rail.  They just punch right out.  But you need to punch them out because you can't just pull on the washer to pop it off.

I put my old rail in a vise used a punch to lightly tap them out. One small hit with a hammer and the punch and they pop right out.

Then to put them in the new rail I inserted the bolt and place the rail and the bolt flat on the table. Then I used a socket to top the washer to tap it down into the rail.

  • Thanks 1
KARNUT Senior Enthusiast

KARNUT

Posted
Posted

I never had to replace them. What goes wrong, clogging, bad fuel? You would think they’d be a bit easier to change if they couldn’t go passed 100K miles. Thousand dollars is a lot of money if there’re going to call it routine prior to 150K miles.


Sent from my iPhone using Tapatalk

JONBLARC7 Enthusiast

JONBLARC7

Posted
Posted

I hurt a lifter and scored the cam with 120k miles.  So I decided to do TSP 218/226 cam, DOD delete and have the heads re-worked.

 

Well I guessing since my injector had been in the head for 120k miles all the dirt and grime sealed them to the heads.  My neighbor and I spent an hour trying to get the injectors and rails out of the heads.

 

The result was two bent fuel rails and two bent injectors. 

  • 3 months later...
  • 1 month 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

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,942
    Total Members
    8,960
    Most Online
    tblt44
    Newest Member
    tblt44
    Joined

  • Who's Online   6 Members, 0 Anonymous, 676 Guests (See full list)

  • Latest Articles

  • Posts

    • AndrewF
      Scan Tool Recommendation

      By AndrewF · Posted

      I am in the market for a bidirectional scan tool so was hoping someone can help point me in the right direction. There are so many options out there it is hard to narrow down which make/model to choose.   I have always done my own vehicle work so looking to maximize capability with the scanner. Ideal price is $1k or less but would be willing to exceed if it opens up significant benefits.  Currently my 24 2500 is the newest vehicle but also have a few mid to late 2010s Subarus as well.    It seems that the Autel MP900 has a decent amount of features at a reasonable price?
    • C/K Man
      Silverado 4500-5500-6500 are they still being produced? Would have sold better as GMCs as well

      By C/K Man · Posted

      There was talk over the last couple of years that the contract to build these trucks between GM and International would not be renewed.  International moved production of all their other trucks besides the companion CV model out of the Springfield plant some time ago when they opened their San Antonio plant.  That left Springfield only building the Silverado Medium Duty, International CV Series, and some Express/Savanna long wheelbase cutaways.  International also put the plant up for sale some time ago.  This all answered my earlier question as to why GM and International did nothing with these trucks since they were introduced, as they had basically become a market 'placeholder' with a finite life.    The Silverado Medium Duty/International CV trucks were interesting combination of a GM powertrain, electrical system, and K2XX Silverado cab with an International chassis that was supposedly designed for a step-van type vehicle they never produced.  They were manufactured in International's Springfield plant along with the IH MV series initially.  When first introduced, there was much talk that the Silverado Medium Duty/CV would eventually get a gasoline engine option along with other upgrades and GM and IH would work on a class 6/7 joint venture truck.  This was before VW bought Navistar out, after that happened no more was said.  Draw your own conclusions...   About the time talk started that the GM/IH joint venture was not going to be renewed, rumors started that GM would develop a new line of medium duty trucks themselves.  The story is the new trucks will be part of the next generation HD's due in 2028, and will still feature a 'straight rail' chassis design that the current medium duty has.  GM views this as a desirable feature that differentiates their truck from the competition.  A gasoline engine option is also expected.  As the current Silverado Medium Duty remains in production until September 2026 and there is still a lot of inventory available do not expect any official word for some time.   I believe GM remains committed to their successful partnership with Isuzu, and all the LCF models will still be available from Chevy Commercial dealers.  Isuzu is on the cusp of opening a new large plant in South Carolina and there is also speculation that this may result in new product for both Isuzu and Chevy Commercial dealers.                  
    • davester
      push to talk button

      By davester · Posted

      drive the truck back to the dealer and complain that the button works.
    • davester
      push to talk button

      By davester · Posted

      drive the truck back to the dealer and complain that the button works.
    • nfisherman
      Software Update

      By nfisherman · Posted

      I have a 2026 2500 HD Ultimate. My phone app says there’s a software update available. It’s something about improved battery management and something to do with the running boards. I follow the instructions for the update but the “Check for Updates” option is greyed out in my settings menu. Has anyone else seen this? How did you resolve it? The help message just says “see your dealer” if the download doesn’t work. I’m just trying to save a trip. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...