In the past the first thing I would do when I bought a diesel was tear out the muffler, and hollow out the cat. I phoned a couple exhaust shops around town to get some pricing on a few differen't scenarios, and I was advised that the dealer would void warranty if I tore out the cat. So, I called a dealer and they confirmed. What could possibley go wrong without the cat? ( maybe screw up an 02 sensor )????

The dealer also told me not to chip the truck, or I will void warranty. WTF

Is this the same for everyone else?

there are no O2 sensors on diesels

The only way a dealer can void warranty is if they can relate your concern/ complaint to what you have done to your truck. Cat removal is technically illegal, but it still shouldn't void your warranty.

check this out for answers. http://www.xtremediesel.com/index.asp?PageAction=Custom&ID=44

Well I know what exhaust shop I'm not going to.... LOL

Actually, if I thought about it... It makes sense why there aren't any.

Its around a $10,000 fine if you get caught physically taking one off. :wtf1:

Sweet mvnvltn, I'll print this Magnuson-Moss Warranty Act and take it in to the Service Manager at the dealership. I will also do a search on the net and see if there is a Canadian version.

Don't feel like the lone Ranger! After buying my 07 last fall, wanted to get rid of the street tires and put a little taller tires on it, then get a programmer to adjust the speedo. Stopped by the local dealership where I bought the truck to talk to the service manager. Didn't even give him a chance to discuss a programmer, he started off on how 265's could void the warranty and I turned and walked away. Have 265 Coopers SST and a Hypertech3 on it now. Am shopping another dealership to service, if the need arises.

With the Magnuson-Moss Warranty Act you have to prove you are right, like how much money do you have and is it worth it to fight it.

Pretty sure it is the dealer that has to prove your modification is the cause of the problem...even so...could cost ya some cash to dispute their findings

Pretty sure it is the dealer that has to prove your modification is the cause of the problem...even so...could cost ya some cash to dispute their findings

Yes that is the Magnuson-Moss Warranty Act as above, anyone that puts chips/computers on their trucks or lifts them should have a copy of this, this is how I got ford to by back my F250 6.0!!!!! It is a Federal Law!!!

botten line..what does the act do for us?

botten line..what does the act do for us?


Bottom line...nothing... It is vaguely written and often doesn't stand up in court. It was written to prevent dealerships from making you use only manufacturer products and manufacturer service for routine maintenance like oil changes etc...

The General can void the warranty for almost ANYTHING they choose. And there is nothing you can do about it.
If you come across a dealer service manager who even mentions voiding the warranty...leave and never come back. It is very rare that warranties are voided w/o the service manager involvement. Usually in the form of a call to the General asking them to deny warranty claim because of "X".

Bottom line...nothing... It is vaguely written and often doesn't stand up in court. It was written to prevent dealerships from making you use only manufacturer products and manufacturer service for routine maintenance like oil changes etc...

The General can void the warranty for almost ANYTHING they choose. And there is nothing you can do about it.
If you come across a dealer service manager who even mentions voiding the warranty...leave and never come back. It is very rare that warranties are voided w/o the service manager involvement. Usually in the form of a call to the General asking them to deny warranty claim because of "X".

I think they have to prove that it was the cause of the problem. Then they will only void your warranty on that perticular item not as a whole. But I will say that it does seem that some stealerships kind of do what ever they want to do. Sometimes as long as you stand up to them they will leave you alone. I had one tell me they were going to void mine over my Nicktane system. We went a few rounds and they dropped it. Cause they could not prove anything. Ended up being a relay any how (WARRANTY WORK). They just wanted me to pay for it.

I think they have to prove that it was the cause of the problem. Then they will only void your warranty on that perticular item not as a whole. But I will say that it does seem that some stealerships kind of do what ever they want to do. Sometimes as long as you stand up to them they will leave you alone. I had one tell me they were going to void mine over my Nicktane system. We went a few rounds and they dropped it. Cause they could not prove anything. Ended up being a relay any how (WARRANTY WORK). They just wanted me to pay for it.

But they started out attempting to void your warranty. You just stood your ground and they backed down. They will try that because they can charge YOU more than they can charge the General. Usually if you push back they will give in. This why I say....if there are any conversations regarding the voiding of warranty AVOID THIS DEALERSHIP!!!! These are largely unethical practices used to take advantage of an uninformed consumer.
The MM act does give you some leverage....but in most cases the dealer only has to prove that the after-market item was indeed installed in the vehicle at the time of the failure and that the device "could" have contributed to the problem or symptoms which led to the failure.

Find a dealer that wants your business. It's the same with ATV's there are dealers that will void warranty's due to mods, tires, ect, and those that don't.

Who do you think gets the most business?

Later
Molsondrinkr

But they started out attempting to void your warranty. You just stood your ground and they backed down. They will try that because they can charge YOU more than they can charge the General. Usually if you push back they will give in. This why I say....if there are any conversations regarding the voiding of warranty AVOID THIS DEALERSHIP!!!! These are largely unethical practices used to take advantage of an uninformed consumer.
The MM act does give you some leverage....but in most cases the dealer only has to prove that the after-market item was indeed installed in the vehicle at the time of the failure and that the device "could" have contributed to the problem or symptoms which led to the failure.

I agree whole heartedly. Not trying to start anything.

If an individual lets thereself be put in that situation and gets screwed "OH WELL". Their are plenty of sites just like this one, were you can talk to people and get the info you need.
You can also contact the the manufacturer of the item and talk to them too. K&N has went to court over stealerships making accusations about there filters causeing problems. I know others have too. If you get the manufacturer involved alot of times they will demand solid proof. Cause if there is a problem they will try and fix the product. If not they don't want their reputations run threw the mud.
Being well informed and haveing a set of "NUTS" on you will help from being screwed. Just like being informed about the MM Act.:)

Something I read in an earlier post, the rest of it. The Owner of the Dealer we buy all of are vehicles from explained it to me. When a person goes in to get a starter replaced they the dealer says ok thats 3.4 man hours at $50.00 an hour. If its Warranty work GM says it really only takes 2.5 man hours and they pay $40.00 per hour. So you can see why they would rather stick it to you than it being stuck to them.

Something I read in an earlier post, the rest of it. The Owner of the Dealer we buy all of are vehicles from explained it to me. When a person goes in to get a starter replaced they the dealer says ok thats 3.4 man hours at $50.00 an hour. If its Warranty work GM says it really only takes 2.5 man hours and they pay $40.00 per hour. So you can see why they would rather stick it to you than it being stuck to them.


It is easy to understand why some would want to do this....it is entirely a different issue IF a dealer is doing it. It is totally unethical.

Another factor that comes into play here is the dealer scoring....I believe most manufacturers score their dealer service centers by the number of warranty hours processed....with less being better...

The service manager has a lot of latitude when it comes to warranty cases. If he has any history of voiding warranties I would not want to do ANY business with him.

I just read an updated TSB on aftermarket accesory usage. GM updated it for 2007 vehicles. Just thought I'd pass it on. -LBZBob

http://www.alldata.com/tsb/General-Motors/1168502400000_1169625600000_04-06-04-054A/index.html

When adding power enhancing devices it is best to go into it believing that you are your own warranty station. Most dealerships have no issues with fixing warranty items that do not pertain to any performance mods. If your Allison is toast and you have a programmer you are paddling up stream. Thinking that GM will and "should" fix everything carte blanche that you tear up is wishful at best. The "dealership" can not void a warranty...it MUST be done by the manufacturer.