Long story short my 2002 2500HD is in the shop. I have a failed injector on #7. $2500 later the dealer says the the #7 cylinder has no compression. I went to the shop and sure enough the Tech pumps compressed air into the cylinder and it's going into the crankcase and coming out the oil filler tube. Lovely. They suspect I burned the piston up. They want $3000 to replace the piston. Just got a call from the service shop and the motor is out and I should know something in a couple of hours once the head is off.

If it is in fact a piston and the price doesn't continue to rise I will most likely give them the go ahead to replace it. If there is head damage, cylinder wall damage and the price keeps going up at some point I may consider parting the truck out, or purchasing a remanufactured motor or some other alternative. The motor is already out of the truck, if I purchase a new motor I would probably do the work and save the money on labor.

In the end I'm looking for the path of least resistance (in terms of money) out of this situation. Any opinions, thoughts, etc... I know about the extended injector warranty, but according to the dealer this particular failure is not covered under the extended warranty. I'm still going to fill out the claim form and plea my case to GMC but that isn't looking to good as of right now.

Fill out a signature so we know what mods if any you have.

I am sure someone will point you in th eright direction

added a sig.........

like what I have at the end of all my posts. You can add it if you go to your profile.

at the top of this page look for Quick links and then edit signature...

I would think warranty should cover it. The injector failed and caused the piston to go bad? If the piston caused the injector to go bad I would say no, but with a 7 yr 200k mile warranty I would think they should honor it. Nevertheless if they didnt I would still raise hell being that it is only 5000 miles over.

I would think warranty should cover it. The injector failed and caused the piston to go bad?

That's correct, the piston burned up because the injector was just dumping gas in into the cylinder all the time.

It gets worse. I just got back from the dealer. They had the head off and the piston is toast, to make things worse there is a gauge in the side of the cylinder wall just as I feared. To top that off, the motor can only be bored .030 over. So the machinest is going to take a look and see if it can be bored out. If not that block is toast.

At the same time I'm going to call the number on the claim form for the extended warranty on injectors and beg for mercy.

The beg for mercy thing didn't work. Apparently the extended warranty doesn't covered failed injectors only injectors with high fuel return due to cracked casings or erroted seats.

Whatever, this may be the last GMC EVER that I purchase.

what was wrong with the injector?

if the injecotr caused the failure which it pry did it most certainly is covered, wouldnt be rebuilt either, id be screaming for a new long block.

hindle_az
Have you read the injector special policy? Did your truck have any of the listed symptoms?

You should be covered by the warranty without question if the injector caused the failure

First, your not going to be covered under the policy. It only covers the injectors. As for the rest of the motor, please give me a call in the AM and I'll walk you through some options. All of which will be better then what it sounds like your getting now.

Same situation here more or less. I have a HONEABLE motor currently being used as a paper weight if anyone needs it. Heads are good, turbo good, i dont recomend using the GREAT injectors thats in it, the number 8 piston has a hole and cracked all the way across it. I was affraid of it so I bought a lower milage motor in hopes to solve my problem.

That's correct, the piston burned up because the injector was just dumping gas in into the cylinder all the time

Did you get any advanced warning prior to the failure? .. loud fuel knock, white smoke at idle, etc?

The only warning I got was piss poor mileage on the way up. On the way back it started smoking and knocking. Apparently it was to late at that point, the damage was done. At the time I had no idea why I had poor mileage, the motor still felt strong, all the gauges read normal. When it went it went all at once.

I was affraid of it so I bought a lower milage motor in hopes to solve my problem.

I'm doing the same thing.

Hey Hindle, which dealer?

Lawley Chevy in Sierra Vista.

GM is AWFUL. They say they have the best ,"Great GM Feeling" LA DE LA DE DA. They dont stand behind crap. Buying a GM you are totally screwed if you have a problem and need help from what I found out after warranty. I had a stock ,stock(had to say that again) LB7 62,000 miles 1/2 year out of in service date.
Droped a valve, scored cylinder,cracked head broke injector.. Went to dealer,first question? "Did you buy it here"?Then we have to take it apart BLAGH,BLAGH,BLAGH. Anyway after a few calls and going nowhere I had it fixed at Merchant Automotive
Dont know if my next car or truck will be GM.
I feel that a company needs to stand behind there product and not screw the customer when they have a major across the board problem ie; injectors ,pump rub, dowl pin syndrome poor front ends

1/2 year out of in service date.


I'm under the 7 years and 200k extended injector warranty but somehow this doesn't cover my injector. That's right the injector warranty doesn't cover injectors.

WTF!

Either cover them or don't. "We cover injectors just not your failed injector". I probably won't buy another GM.

I'm under the 7 years and 200k extended injector warranty but somehow this doesn't cover my injector. That's right the injector warranty doesn't cover injectors.

WTF!

Either cover them or don't. "We cover injectors just not your failed injector". I probably won't buy another GM.If you read the special policy - it's not an injector warranty - it's a special policy to replace injectors for free that have specific symptoms / failure modes - not all failures on injectors. IMHO GM Stepped up to the plate better than other manufactures have by creating this special policy for 01-03s. They did a very good thing here.

If you read the special policy

Not only did I read the special policy but I will qoute it for you since it's sitting right in front of me.......



"This letter is inteded to make you aware that some 2002 model year GMC Sierra vehicles, equipped with a 6.6L Duramax Diesel engine, may experience vehicle service engine soon (SES) light illumination, low engine power, hard start, and/or fuel in crankcase, requiring injector replacement, as a result of high fuel return rates due to fuel injector body cracks or ball seat erosion."

I would say I met two of the criteria: low engine power (which eventually led to NO engine power), fuel in crankcase

Which in turn required injector replacement. Sounds pretty straight forward to me.

Now I haven't seen the actual injector myself, so I can't say if the injector body has any cracks or ball seat erosion.

It doesn't take a rocket scientist to figure out that the LB7's have injector problems. So GMC should have stepped up to the plate and simply covered injector failures period. As a consumer I don't really care who made the injector's or who's problem it technically is, I simply know that my truck says GMC on the front and if there are manafacturing problems with a component, GMC should cover it. At least if they want to keep consumers coming back.

Professional grade my arse.

You may have 2 of the symptoms but not the actuall warrantable issues

"as a result of high fuel return rates due to fuel injector body cracks or ball seat erosion."


Yes I know,it still sux. There are dealers that want to help but most of the time their hands are tied by the higher-ups. Sometimes you get a good dealer,good regional manager,etc up the ladder and everything works out. Sad that this is not usually the case.

I was in the same boat as you, only I was 2200 miles from home, with 5ver, family, mountains and desert.
I'm sorry, but the warantee doesn't cover THAT type of failure, :rippedhan
Still trying to find someone who cares enough to reimburse me.
And they think I'll want me to buy another GM, with a decieving special policy like this? :flipa:

http://dieselplace.com/forum/showthread.php?t=172724

I was in the same boat as you, only I was 2200 miles from home

Man, sorry to hear that cause this sucks! Your are the 2nd person to suffer catstrophic engine failure from an injector failure. I wonder how many more are out there.

I don't care how crappy Dodges tranny's are, I'm not getting another GMC after this. It would be cheaper to replace the tranny every 100k then my freaking motor.

So did you get another motor?

I don't think he lost his motor like you did. I have only heard of one other case like yours. He posted here a few months ago. Not sure what ever happened with his case. http://www.dieselplace.com/forum/showthread.php?t=169839&highlight=Bret

I think it is rare in a stock motor, but of course it's not rare when it happens to you!

Buy a Cummins? Maybe. Please don't go over to the dark side (ferd)!:cool:

Man, sorry to hear that cause this sucks! Your are the 2nd person to suffer catstrophic engine failure from an injector failure.
So did you get another motor?

No catistrophic failure. :)
Just a simple $4700 injector replacement and a $200 rental car bill. :mad:
I got a few thousand miles on since the fix, and trucks running good, .................................................. .........................for now.