Who has the best or worst warranty?

Has a lot to do with the dealer.

 

I have seen a couple DD15's and 16's at my dealer (a couple they blew up before they got the service bulletin to not replace oil and fuel filters at the same time) and Detroit didn't question anyone. They didn't even want them rebuilt. Sent brand new crate motors.

Have friends that had ISX's blow up and Cummins blamed them, tried to say stuff like "you must have dusted it" and fought them tooth and nail before they finally warrantied.

Another friend with an MP10 Mack and they have been really good to him.

And another that drives for a heavy haul fleet that is trying a couple MX510 Paccars. They complained about them being severely under-powered and Paccar is working hard with them to try and get them to run.

 

Why are you not supposed to change oil and fuel filters at the same time on the Detroit?

 

Because they take a long time to prime and start after a fuel filter change and they were running the cylinders dry because there was also no oil pressure.. So a bunch blew up and Detroit issued a service bulletin to dealers. My dealer showed me so that I don't do it either.

Mine takes about a half hour of running down the road before it will start normal after a fuel filter change.
Before that it will crank for several seconds before it starts.

 

If you are thinking of making any money in this racket, you are the warranty. Educate yourself and start purchasing diagnostic equipment and tools. If you think a warranty is going to save your tail end you are a fool. A warranty will get you into a shop, but only God knows when. I called my local International dealer, where I have a CASH account. I wanted to get in to have them put their computer on my truck, the Diamond Logic, which I do not have for obvious reasons. Ted told me four weeks. I said I will see you in the spring.

You need to learn the systems on your truck, you need to be able to repair those systems, read EMISSIONS. If you do not know THAT system, the dealer will RAPE you with a broomstick. And that is what sends most every new truck into the shop, emissions.

Take your truck in with the check engine light on, and you will walk out with a new remanufactured turbo or EGR cooler, and will be back in line in short order as that was not the issue. Rely on a warranty, you may as well just park the truck.

 

I think the bigger question to ask yourself is " What engine do I have the least chance of seeing the dealer with?"
Cause even when it's under warranty, it's gonna be down for awhile.

 

I know you are right but can you break it to them a
Little easier scare the newbie to crap.the bloomers

 

There is a difference between warranty and goodwill. Warranty for the most part is warranty. If it is covered through the warranty plan, change it out. If its a good customer, sometimes the dealership will cover it even though warranty wont pay. This would be called goodwill. For example, a truck gets sold with tub style fenders. A mount breaks and ruins the fender. Good luck getting the manufacture to cover the fender. however, if it is a good customer, the dealer will cover it just to keep him happy/ thank him for the continued business. Policy is another one that gets confused with warranty. If it is a well known problem and the customer is off warranty, quite often you can get policy on it. Usually only on original owner/ good customer. For a carbon packed cummins off warranty, cummins will usually pay a percentage of the bill as it is a known problem. However if it is a second owner transient customer generally nothing will happen. Dealers like to use their policy money on regular customers not one time ones.

Warranty packages vary alot with what is covered. You can get engine coverage, aftertreament coverage, basic vehicle coverage, towing coverage, or a variety of them. The most common thing to deal with is a OEM issues on a CEL. Customer has full engine warranty so the CEL looks like it will be covered. It is then found that an OEM harness rubbed out so no warranty. Even thought the engine is covered, it was an OEM harness that caused the issues and not an warrantied engine part. Thats why it is good to get the extended base vehicle warranty as well as the engine one as Cummins only makes the engine and after treatment. The OEM makes all the harness that connect the two.

 

I have bought a few new trucks over the years, and I can tell you this, IF they find that rub in the harness, and it does happen, that downtime will cost most owners thousands of dollars in down time. Learn the truck, learn the systems, have the tools and save the money on all but the basic catastrophic warranty coverage. And if you are smart, you will avoid an emissions truck.