I have a 2004 Chevrolet K2500HD Duramax Diesel truck which I purchased new in Dec. 2003. The engine has blow up for the second time now at 68500 miles. It is stock and has no chip or other enhancements. The engine just went bang, clank, clank while driving home on the highway at 60 mph. Chevrolet says that I must have spraying WD40 into the air intake system as the all valves in a single cylinder broke off and destroyed the entire engine. This makes their problem mine and they refuse to offer any warranty assistance what so ever.

Yesterday I saw an article on this site that discussed GM settling a year old issue on a 2002 Duramax engine that also broke valves and destroyed the engine. I am looking for help on this matter as the repair cost will cost somewhere around $22,000.00 to replace the engine. If anyone can help I am all ears.  

C cracked
H heads
E every
V valve
R rattling
O oil
L leaks
E every
T time  

reading your article i have a 04 c4500 with it in the shop for the 5th time for injectors. GM offered a cash offer which didnt cover even the repair. you should have recieved a letter extending warranty to 200000 miles. Make sure the vehicle goes also to a GM repair shop!You also need to start calling their GM resoultion center if at that point they do not respond do like I did contact a attorney. This is the only way they will respond to your issue. There are many issues that i found out about the duramax engine from 00 to 04
In your case a friend of mine GM bought the vehivle back and offered cash ! So dont be dishaeartened as long as you continue to let them know you know there are issues they will after awhile they should make good as long as you also have all your records. Also what you might want to do is get a copy from a dealer on the vehicle history its free! Good luck  

Thanks for the support. I am looking for an attorney, but I can't find anyone who wants to take on GM. I live in a small town and haven't given up looking for the attorney.
Local dealer Ed Bozarth Chevrolet in Grand Junction, CO. still wants me to pay $650.00 for the  tear down (remove head)or $18,500.00 to repair the engine. This is because GM won't back the warranty.  

Can
Hear
Every
Valve
Rattle
On
Long
Extended
Trips  

As a tech familiar in the warranty field, this is a ploy by the manufacturer to get out of covering the repair. In order for them to deny the claim they have to prove you put WD40 in the intake system. Unless they have physical proof the substance was in the engine when it failed, they have no case and it won't hold up in court. They will deny the repair as long as they can hoping you will give up. Just keep following up and continue to call them. Ask for a claims manager, ask the dealership service manager to help you. They should be able to tell them if the WD40 is in the engine.  You can also request a GM factory representative to look at your vehicle with your and he can explain thier position on the claim. I would exhaust all your options before you go to the expense of hiring an attorney. If the engine should be replaced under warranty it should not have to cost you out of pocket.

Good Luck  

i have a phone number at GM executive office it is a direct line to this office and explain what your issue is to them. if you post your email i will forward this to you.good luck  

I am having problems with GMC. I have an 04 duramaxx
diesel, that let me down 4 weeks ago, transmission wise. It has 44,000 miles on. This is the first major problem I have encountered. It has been in the shop since then and I am wrangling with GMC over who is going to pay for the new transmission. They have now decided we should split it 50/50. I am not in agreement with that. You said you had a direct phone # you would share. Can you help me out ????  

Send me the number too..
My truck gave in at 101000. A glow plug fell in the #8 cylinder now they want a 1000 to open it up and see te big piture...They GM dealer said they were'nt sure about the warranty beasce i'm 1000 mile over the 100k...
I'm gonna fight it...  

wow, that must be nice to have that