Why GM Injectors Still Failing After Years? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Why GM Injectors Still Failing After Years?


Mr. D
07-02-2005, 05:14 AM
Does anyone have a clue why Duramax injectors are still failing after years of the recurring problem? My neighbor had all 8 injectors replaced on his '02 Duramax six months ago and they are all bad again! I just had two replaced on my '02 and I suspect more to come!

Why doesn't GM use a different injector design, rather than replace bad injectors with more bad injectors? I'm glad I don't have GM stock! DUMB!

Are the injectors in the '05 holding up any better?

My Chevy Duramax has been in for repair eight times in 50k miles! If Toyota ever makes a full size diesel pickup, GM better watch out! I have two Toyota pickups that never need repair, while my Chevy (which I like driving) is always having some Mickey Mouse poor quality control repair! On my first trip 10 feet of vent tube came loose and drug behind the truck like a gut shot buffalo! No one knew how to exactly route it so they put it back with plastic ties "approximately" were it belonged! Sort of like jerry rigged arteries in a heart bypass operation!

Hell, I only payed $42K for the truck so what did I expect?

Bill Gisse
07-02-2005, 08:10 AM
I think all the manufactures need to get together and develop a new high pressure fuel system and get away from Bosch. As long as trucks are used as hot rods we'll probaly be stuck with what were getting now. Right now I'd like to see Ford or Gm bite the bullet, beef up the suspension and put a Catapillar 3116 in and sell it as a work truck. They need to start thinking about reliability and get out of the horsepower/torque race. Wouldn't be suprised to see someone come out with a gas ser conversion kit to save some of these diesel trucks from going to the graveyard early because of excessive repair cost. US manufactures have every right to worry about Toyota, they should with the crap thier putting out. Question: I wonder if the Japs, Swedes and Itallians use Bosch injectors?

hoot
07-02-2005, 08:48 AM
Bosch needs to re-evaluate itself in terms of design -vs- durability. Even the VP44 electronic pump on the Cummins (pre 2003) has an excessive failure rate. I think they will blame fuel as the problem but we all know that BS. Lubricity can be enhanced with additives and filtration can be greatly improved. We did those things and it didn't really seem to help.

I just think it's sad that GM got shafted once again by an outsourced system supplier as they did by Stanadyne. I don't care what GM spec's out... if the supplier cannot reliably design it they run the risk of blowing it for themselves and the auto manufacturer... not to mention the end user.

I would love to see real numbers in GM and Bosch's books on what this is costing them and the actual failure percentage. It's most likely less than we see here but it looks like once a truck has a failure, if the repairs are not done properly you see multiple failures on the same truck.

GM hadf a similar situation back in '94 with the 6.5TD and the Stanadyne pumps. SOme trucks would get three or four pumps in a few months time.. due to misdiagnosis. The pumps were sent back for repair, nothing was found wrong with them on the bench and they were put back into the field. The same pumps were failing again.

Talk about ugly... and now GM is dealing with another supplier and more problems.

lfetchen
07-02-2005, 09:49 AM
Does anyone have a clue why Duramax injectors are still failing after years of the recurring problem? My neighbor had all 8 injectors replaced on his '02 Duramax six months ago and they are all bad again! I just had two replaced on my '02 and I suspect more to come!

Why doesn't GM use a different injector design, rather than replace bad injectors with more bad injectors? I'm glad I don't have GM stock! DUMB!

Are the injectors in the '05 holding up any better?

My Chevy Duramax has been in for repair eight times in 50k miles! If Toyota ever makes a full size diesel pickup, GM better watch out! I have two Toyota pickups that never need repair, while my Chevy (which I like driving) is always having some Mickey Mouse poor quality control repair! On my first trip 10 feet of vent tube came loose and drug behind the truck like a gut shot buffalo! No one knew how to exactly route it so they put it back with plastic ties "approximately" were it belonged! Sort of like jerry rigged arteries in a heart bypass operation!

Hell, I only payed $42K for the truck so what did I expect?

:banghead: .................................................. ......:stirthepo
These Forums are great for exchanging information between owners but we also need to pass on/report these injector failure problems to the National Highway Traffic Safety Administration (NHTSA). As more and more reports are filed, NHTSA may help us by FORCING GM to do something about the problem. ):h

You can call NHTSA at: 1-888-327-4236 and report your problems directly to a NHTSA Rep, or you can file a complaint online through a couple of websites: www.nhtsa.dot.gov/ (http://www.nhtsa.dot.gov/) , two thirds of the way down the home page is a topic heading: "If you suspect a defect of problem with your vehicle" - click on the "Here's how to file a complaint..." line and it takes you to an online complaint form to fill out.

The other website is: www-odi.nhtsa.dot.gov/ivoq/ (be sure to use a dash (-) not a dot (.) after the www part) - this takes you directly to the online "Problem Reporting" form.
:exactly: ........................... :thankyou2

.

C.A.P
07-02-2005, 09:54 AM
all this injector failure talk makes for some long nights of worry, am I just waiting for mine to fail? especially running high hp. is it imediateatly noticeable???? where is my malox already????????????????

jesshd
07-02-2005, 12:33 PM
It is not a question of IF they will fail, only when.

Jess

Maxter
07-02-2005, 01:37 PM
We're all lucky nobody got killed or badly hurt because of that. I was on a flat road towing a 14,000 trailer when mine failled. I could have been driving down a 14% twisty hill. What wuld I have done? No brakes, no power steering no nothing... What about my next failure... will I be so lucky?

simicrintz
07-02-2005, 01:50 PM
Dave;

I've heard that Toyota will have a diesel full size out next year......

C.A.P
07-02-2005, 02:13 PM
I feel like a deer in headlights, waiting to be hit by this big semi coming at me I think I need a drink (and its not going to be soda)

dw77x
07-02-2005, 04:46 PM
If Toyota ever makes a full size diesel pickup, GM better watch out! I have two Toyota pickups that never need repair,

:exactly:. . .Same experience here

lfetchen
07-05-2005, 09:48 PM
We're all lucky nobody got killed or badly hurt because of that. I was on a flat road towing a 14,000 trailer when mine failled. I could have been driving down a 14% twisty hill. What wuld I have done? No brakes, no power steering no nothing... What about my next failure... will I be so lucky?

I do a lot of towing in the mountains and in remote areas and I fear just the scenario you outlined in your comments.... Loss of engine control on a steep hill where Tow/Haul would be rendered useless or being stranded in the middle of nowhere!

As owners of $40k+ vehicles, we have a right to expect a more stable fuel injection platform than GM has provided!!!

It appears that MASS PROBLEM REPORTING to a government agency is the only way for us LITTLE GUYS to get some action.

.:grd:

Maxter
07-05-2005, 10:01 PM
Here's the before and after photos, It's been 13 months and 52,000km since june 6, 2004.

Keeping my finger crossed for the next time... to never happend.

chevy_9465
07-05-2005, 10:14 PM
Some of the guys around here are running bigger aftermarket injectors and what im wonderin is if i was to get a set of aftermarket injectors would they still do the same thing as the factory ones, i bought my truck about a month ago but i saw where it had new injectors and a new injector pump around 30k miles ago so i hope ill be ok for a while but when they do go im thinkin about replacing them with some larger ones so maybe i wouldnt have to worry about them

dollyo11
07-06-2005, 12:49 AM
When my injectors failed the only way I knew it was the cars behind me were using their wipers and it wasn't raining, blowing fuel out of overflow pipe, no loss of power still going 75mph, pulled off frway at truckstop checked the fuel level in the pan , located dealer 5 miles away fired her up and drove there /guess I was lucky. Of course I was 90 miles away from home..dealer in Redding Ca. was great deisel man knew his chit and gave me no problems except he wouldn't leave me his techII//

Tomslick24
07-06-2005, 01:47 PM
Toyota will hose the market if they indeed come out with a full size pick-up.Where do I sign.....

cdhd2001
07-06-2005, 02:01 PM
Is it just me, or have any other long term members noticed the excessive amount of "injector failure" posts by new members with a low post count?

Makes me wonder if Hoot has the guys from the Dodge forum trolling over here?!:eek:

hoot
07-06-2005, 04:33 PM
Is it just me, or have any other long term members noticed the excessive amount of "injector failure" posts by new members with a low post count?

Makes me wonder if Hoot has the guys from the Dodge forum trolling over here?!:eek:

:lol: Fabricating excuses I see ):h

I would think it's the people with issues who might normally not join or post. They want it known.

lfetchen
07-06-2005, 05:30 PM
:lol: Fabricating excuses I see ):h

I would think it's the people with issues who might normally not join or post. They want it known.


Correct...

If GM fixed the injector/fuel system design problems (they've had 5 years)... the problems would be RESOLVED and the people who WERE experiencing injector problems would DRAMATICALLY decline and so would the "injector postings"

:exactly:

.