According to the shop foreman @ KINSEL FORD anything you add to the truck after you receive it voids the warranty .You should probably talk directly with a FORD MOTOR COMPANY REPRESENTATIVE AND WORK WITH HIM TO RESOLVE THIS ISSUE .

That shop foreman would be lying. They would have to prove that any modifications that you made were the cause of a failure in order to decline a repair under warranty. There is a law regaurding this call the mossberg warranty act.

Magnuson–Moss Warranty Act.

^^ +1. The most a dealer can really tell you is that modifications MAY void the warranty, if what you did caused a failure of the warranted part. It certainly isn't going to void the whole thing (i.e. if you add a part that breaks a sensor, that doesn't automatically void say the wheel hubs too for example). That law exists specifically to protect consumers from BS claim denials based on modifications that had nothing to do with the component failure.

In the case of dual alternators (this thread), if you're adding Ford parts and having a Ford shop reprogram the ECU to control them, they will be on shaky ground trying to deny you for anything related to that. If you're really concerned about it then have Ford install the stuff too -- then it's really all on them. If you wire in the alternator poorly and it shorts out, blows up a bunch of expensive electronics, etc then yeah, that is on you. But one would have to lead to the other.

MAGNUSSON-MOSS WARRANTY ACT .................THANKS FOR THE INFO , NOW THAT IS USEFUL INFORMATION .......THANKS AGAIN W5DVC911

Thanks for all the information. I went to my local Ford dealer and talked to the service manager. He pretty much said what rforsythe said. If they install the parts they are only covered under the standard 12 month/12,000 mile warranty. I will install the parts myself as ford wants over $600 in labor to install them. Just to have them enable the second alternator in the PCM is one hour of diagonistic fee or $111.50. I was able to talk to a tech and he told me it takes all of 5 minutes to turn it on in the PCM. Whats a guy to do? I sould have ordered it with duals from the factory I guess.

I get the redundancy factor and have had trucks with the duals. What I never thought about was what's their combined output at idle?

I'm half way through my 3rd winter with this truck. I remote start it frequently and I know the rapid heat is on during those remote starts. Often in the morning, it also has the marker lights on, since they come on automatically with the remote start. And I just haven't had a problem.

If I knew I was going to be using a winch, I'd just make sure the truck was warmed up past 100° on the coolant so the Rapid Heat shut off, before I ran the winch. You are talking 5 minutes at idle and even less time if you are driving before the Rapid Heat turns itself off. If you review the operation of the Rapid Heat you will see it turns on automatically if the coolant is less than 80° and turns off once the coolant passes 100°. So it is never on very long. And if you have had the truck running, it won't be a draw at all.

The single alternator is pretty simple to change out when they fail. Two bolts, all on top of the engine. The hardest part is changing out the belt. My experience has been the alternator dying around 100,000 miles, So it's a given to change the belt at the same time.

The second alternator, if it fails is a bugger to get to, as evident by Fords charging $600 labor to install one. I seriously considered ordering the dual when I ordered mine, But decided I'd gamble on getting enough voltage from one.

I tell all of my customers to get it. Plus it is a added safty bonus if one goes bad plus its driven by another belt.. I had a customer fry a belt and if it was not full the extras alternator he would have not made it to shere he was going.

Actually the second alternator is driven by the same belt that drives the primary alternator and everything else on the front of the engine. There is only one belt on the 6.7 powerstroke. I just did this mod to my truck. The only differance is the dual alternator belt is longer.

That is correct , both alternators and the rest of your equipment is driven by 1 belt . As a safety factor because I spend so much time off-pavement , I usually replace the belt after only 15,000 miles and keep the belt I take off ( I put in the same package the new one came in and stick it in my tool box ) just in case I loose a belt .............AIN'T NO AUTO CLUB OR TOW TRUCKS IN THE JICARRILLO (APACHE INDIAN RESERVATION) OR OUT IN THE LOW OR HIGH DESERT .W5DVC911

I assume this was a 6.0L? (Which has different belts for each alternator)


15,000 miles really? Whew... I feel bad if you were doing that on your 2006. But really, 15,000 seems a bit excessive. What is Ford's recommended service interval for the serp belt?

Hmmm I still have the factory installed belt on my truck, 300,000+ miles and over 16-1/2 years, no cracks in the drive ribs, no fraying on the edges, I check it frequently. Yes, the spare I bought "just in case" is now about 10-12 yrs old and still behind the seat with the new tensioner & idler and all the tools to install them all.

I could see carrying TWO spare belts but it sounds like W5DVC911 would have TWENTY by the time he gets to 300K! ;-)

I still have a PSD brochure from when I was shopping for my truck that says IH/FMC tested the serpetine belt for 100,000 miles minimum life expectancy on the OBS trucks.

I guess you just don't ge it . Replacing a perfectly good belt with a new one so if I LOOSE ONE I HAVE A SPARE . I HUNT THE JICARRILLO IN NEW MEXICO , THE HIGH & LOW DESERT IN ARIZONA................AIN'T NO AUTO CLUB OR TOW TRUCKS WHERE I HUNT. IF YOU BREAK YOU WALK !!!!! GET IT!!!!!!! YOU GUYS SPEND TOO MUCH TIME ON PAVEMENT!!!!!!

OOOOPS SORRY JUST REALIZED THAT YOU'RE FROM MARYLAND.NEVERMIND. HOW'S THE HUNTIN AROUND BALTIMORE , THAT'S RIGHT YOU GUYS DON'T KNOW WHAT THAT IS ANYMORE .