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Discussion Starter · #1 ·
Hi fello Duramax owners, new member! My Colorado broke down while leaving work on Monday with only 8500 Miles!! Check engine light came on and suddenly I started losing power/throttle response. I pulled over and checked the engine for any obvious concerns. I get the vehicle towed to the nearest Chevy dealer since it is under warranty. Next day the dealer calls stating my exhaust particle filter is clogged beyond repair and must be replaced, out of my pocket for $2,600! GM will not cover my vehicle repair because I installed an after market (K & N) air intake system on the vehicle. They also stated that they found a lose mass air flow sensor connector which may have contributed to my truck brake down. When I went to the dealer that same day I ask the service advisor and service advisor manager for the evidence backing their claim that these two items were the cause for my DPF malfunction and they refused to give me anything other then what the service tech wrote. I towed my vehicle to another dealer in Colorado Springs for a second opinion but apparently the dealer emailed GM corporate and all Chevy dealers in the region, pretty much black labeling me. I put a claim in with GM corporate and I have not heard back from them. I do not have a problem paying for repairs if it is my fault but I would like facts, evidence of the troubleshooting they performed. I did some internet research and found that the same emission issue my vehicle has is happening to other Chevy Colorado Duramax but they refuse to listen. Bloggers on this site have stated issues with the DPF system but I guess GM is not concerned at the moment. Need assistance if anyone can provide some please.

See attachment for the 9 fault codes they found.
 

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That sucks. I'm really sorry about that =/ I believe it was on here, or perhaps on the facebook group I follow, that another individual had the same issue, just recently. The DPF system on these trucks has a lot of flaws. Maybe they rushed through implementing this system before doing a lot of real world experience with this engine mated to this emissions system. The engine has been around for a while overseas, but they don't have the same (or any?) emissions system.

How many miles are left on your warranty? Or years. I got the extended 8 year/ 120,000 mile warranty on our truck. I hoped that if anything went wrong, being a new truck and all with only 1 year under it's belt, that there might be some bugs to work out. But, if they won't cover this under warranty...I dunno. That's crap to say the very least....

If that were to happen to me, or does happen and I'm looking at a $2,600.00 repair, I can most definitely tell you what I'll be doing and it won't be their repair. I don't know what emissions testing is like where you live, I fell like I've heard Colorado might be strict, or perhaps around the big city's it might be on emissions testing? If so, you might not be able to go this route. But, if you can go this route, I would probably tell them to fly a kite and delete the emissions system. Get a Flo-Pro of aFe straight pipe (with a performance muffler if you prefer) exhaust from the turbo back and then get a tuner that will delete out the emissions, such as All in Truck Performance, MotorOps, or Dan's Diesel. There are more tuners that have the ability to delete emissions, but those are the 3 that I know and that have good reviews on them. And while you're at it, you might even do an EGR delete from OZ Tuner (only ones I know who sell one currently).

If you did everything I mentioned, I believe it would run you $1,500 to just shy of $2,000, depending really on which of those two exhausts I mentioned you go with. Less than the GM fix, and you will never have to worry about fixing your DPF or emissions system again. Because I guarantee they will give you trouble again and the DPF WILL plug up again. They usually don't get plugged up so fast; generally go 100,000 to 200,000 miles I thought before they fully plugged and needed replaced.

If you did delete (I haven't, but I fully intend to and go with the above mentioned products), it will make a world of difference in how your truck performs. More responsive, better MPG's and less worry about stupid things failing for starters. Good luck.
 

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Discussion Starter · #3 ·
That sucks. I'm really sorry about that =/ I believe it was on here, or perhaps on the facebook group I follow, that another individual had the same issue, just recently. The DPF system on these trucks has a lot of flaws. Maybe they rushed through implementing this system before doing a lot of real world experience with this engine mated to this emissions system. The engine has been around for a while overseas, but they don't have the same (or any?) emissions system.

How many miles are left on your warranty? Or years. I got the extended 8 year/ 120,000 mile warranty on our truck. I hoped that if anything went wrong, being a new truck and all with only 1 year under it's belt, that there might be some bugs to work out. But, if they won't cover this under warranty...I dunno. That's crap to say the very least....

If that were to happen to me, or does happen and I'm looking at a $2,600.00 repair, I can most definitely tell you what I'll be doing and it won't be their repair. I don't know what emissions testing is like where you live, I fell like I've heard Colorado might be strict, or perhaps around the big city's it might be on emissions testing? If so, you might not be able to go this route. But, if you can go this route, I would probably tell them to fly a kite and delete the emissions system. Get a Flo-Pro of aFe straight pipe (with a performance muffler if you prefer) exhaust from the turbo back and then get a tuner that will delete out the emissions, such as All in Truck Performance, MotorOps, or Dan's Diesel. There are more tuners that have the ability to delete emissions, but those are the 3 that I know and that have good reviews on them. And while you're at it, you might even do an EGR delete from OZ Tuner (only ones I know who sell one currently).

If you did everything I mentioned, I believe it would run you $1,500 to just shy of $2,000, depending really on which of those two exhausts I mentioned you go with. Less than the GM fix, and you will never have to worry about fixing your DPF or emissions system again. Because I guarantee they will give you trouble again and the DPF WILL plug up again. They usually don't get plugged up so fast; generally go 100,000 to 200,000 miles I thought before they fully plugged and needed replaced.

If you did delete (I haven't, but I fully intend to and go with the above mentioned products), it will make a world of difference in how your truck performs. More responsive, better MPG's and less worry about stupid things failing for starters. Good luck.
My truck only has 8,500 miles on it and I still have the bumper to bumper for 2 years. I've been a GM fan but after this issue with them I will not buy from them again! They have not reached out to me to at least show some concern or give assistance. I've seen class action lawsuits out for the DPF malfunction issues so I am going to do some research to see if I got a case. I'm not about getting free money from anyone, just looking for accountability/responsibility. I appreciate the feedback, have a great day.......
 

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They legally can't deny your warranty for an air filter. There are laws preventing that and they have to prove it 100% that was the cause. Tell them that's fine, that hey can discuss any details with your lawyer regarding the situation. You will be approved shorty after.
 

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Discussion Starter · #6 ·
Magnuson Moss Warranty Act says they can't.
I filed a complaint with the Federal Trade Commission which states the same. If they do deny warranty coverage they need to provide evidence backing their claim which they still have not. It's going to be a long painful process.....
They are quick to sell you a vehicle but don't do much to help after that!
 

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While they can't deny warranty work for an air filter, they can deny it for an aftermarket air intake. especially if they say the MAF was not properly installed. I know you said they wouldn't show you where it wasn't reinstalled correctly, but (atleast in my opinion) money is money, whether its from you or GM, and since GM isn't running out of money, I think they would have covered it if they could.

if the MAF wasn't properly installed, it would read incorrectly, and cause it to run rich, hence the Clogged filter
 

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Discussion Starter · #8 ·
While they can't deny warranty work for an air filter, they can deny it for an aftermarket air intake. especially if they say the MAF was not properly installed. I know you said they wouldn't show you where it wasn't reinstalled correctly, but (atleast in my opinion) money is money, whether its from you or GM, and since GM isn't running out of money, I think they would have covered it if they could.

if the MAF wasn't properly installed, it would read incorrectly, and cause it to run rich, hence the Clogged filter
It was installed correctly but they claim the connector to the MAF was loose. That air intake kit has been installed for 3 months, 3,200 miles. I am no diesel expert but I would imagine I would have gotten intermittent faults or check engine lights from vehicle vibration and so forth if the connector was that loose. I have no problem paying for my mistakes but show me the evidence.....
 

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I don't think it will take very long before they go ahead and accept your claim.

This is a common thing that every company does. They deny and keep dying hoping you will not fight it. If you fight it they usually give in within a couple of weeks. Someone blew their Aprilia RSV4 RF engine ($13,000 engine...stock) and they didn't want to replace it. They dicked around for two weeks and the guy finally told them fine, see you in court. Two days later it was approved.
 

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Hi fello Duramax owners, new member! My Colorado broke down while leaving work on Monday with only 8500 Miles!! Check engine light came on and suddenly I started losing power/throttle response. I pulled over and checked the engine for any obvious concerns. I get the vehicle towed to the nearest Chevy dealer since it is under warranty. Next day the dealer calls stating my exhaust particle filter is clogged beyond repair and must be replaced, out of my pocket for $2,600! GM will not cover my vehicle repair because I installed an after market (K & N) air intake system on the vehicle. They also stated that they found a lose mass air flow sensor connector which may have contributed to my truck brake down. When I went to the dealer that same day I ask the service advisor and service advisor manager for the evidence backing their claim that these two items were the cause for my DPF malfunction and they refused to give me anything other then what the service tech wrote. I towed my vehicle to another dealer in Colorado Springs for a second opinion but apparently the dealer emailed GM corporate and all Chevy dealers in the region, pretty much black labeling me. I put a claim in with GM corporate and I have not heard back from them. I do not have a problem paying for repairs if it is my fault but I would like facts, evidence of the troubleshooting they performed. I did some internet research and found that the same emission issue my vehicle has is happening to other Chevy Colorado Duramax but they refuse to listen. Bloggers on this site have stated issues with the DPF system but I guess GM is not concerned at the moment. Need assistance if anyone can provide some please.

See attachment for the 9 fault codes they found.
You need to contact K & N. They guarantee that their filters will not affect the engine. They will call the dealer and if push comes to shove they will threaten to have their lawyers sue the -------- (sons born out of wedlock).
 

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Discussion Starter · #12 ·
What's going on hookster! As of today my truck is still at the dealer untouched! I spoke with a GM senior advisor last week and she is supposed to be doing research on this dilema. She said give her a couple of days, that was Friday and here we are on Wednesday. I will update as soon as I hear back from her....
 

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What's going on hookster! As of today my truck is still at the dealer untouched! I spoke with a GM senior advisor last week and she is supposed to be doing research on this dilema. She said give her a couple of days, that was Friday and here we are on Wednesday. I will update as soon as I hear back from her....
Have you contacted F & N? They will jump on them like a duck on a Junebug!
 

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Discussion Starter · #19 ·
How is that "your fault?" The K & N apparently is not the problem, so how did they deny your claim? By the way, I said "F & N" when I meant K & N. I guess I was thinking of the company that made 4 of my firearms!
Latest update on my DPF. GM has not only denied my claim to warranty my DPF malfunction but they have deleted my entire warranty due to the installation of the K & N intake system! I had my truck taken to a diesel specialist here in Colorado Springs and what they found in the exhaust particulate filter was not just soot but deterioration of the exhaust filter it self. They shop stated that their is not way that much damage came from the K & N intake system. Also, their is a exhaust particulate filter back order and GM has no estimated time of arrive for those systems which could be another reason why GM didn't cover my warranty repair. So obviously their is a big issue with the DPF that GM is not taking ownership so WARNING to all Colorado Duramax owners out there.
On a positive note, K & N has agreed to pay for half of the repairs for my truck which is great to hear!!
I am really considering removing the whole DPF system, we'll see... I will try to upload pictures of the DPF....
 

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Discussion Starter · #20 ·
Any update on this?
Latest update on my DPF. GM has not only denied my claim to warranty my DPF malfunction but they have deleted my entire warranty due to the installation of the K & N intake system! I had my truck taken to a diesel specialist here in Colorado Springs and what they found in the exhaust particulate filter was not just soot but deterioration of the exhaust filter it self. They shop stated that their is not way that much damage came from the K & N intake system. Also, their is a exhaust particulate filter back order and GM has no estimated time of arrive for those systems which could be another reason why GM didn't cover my warranty repair. So obviously their is a big issue with the DPF that GM is not taking ownership so WARNING to all Colorado Duramax owners out there.
On a positive note, K & N has agreed to pay for half of the repairs for my truck which is great to hear!!
I am really considering removing the whole DPF system, we'll see... I will try to upload pictures of the DPF....
 
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