Join Date: Aug 2012
Location: Oregon City, Oregon
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Battery Light Flickering, Serpentine belt shredded.
Hey guys, I have a problem i want to pick your brains about.
So the other morning i jump in the truck to go to work and the alternator/battery light was kinda flickering on and off. I killed it and popped the hood, and my less than a year old belt was down to about half as wide, it had jumped grooved in both directions and both sides of it had been destroyed so it was down to about 3 grooves left.
I was pissed to say the least and looked around to see why it would have done this, the bay is clean i don't off road it is a highway work rig. I would have assumed idler or tensioner if it had only jumped in one direction but almost every single pulley was in a different position. I had a goodyear Gatorback in there which i have had exceptional experience with on all of my other trucks.
Ok so i run to the store, no one carries Gatorback in town anymore so i settle on a Gates belt and put it in and it seems fine for the first trip but then the light is now back on, i can see the headlights surge in power with the batt light, this new belt has not jumped grooves.
My theory is that the belts is for some reason not gaining enough traction on the alternator and not spinning it fast enough. It could be because the alternator has gone bad maybe bearings. It could also just be the gates belt is a poor quality unit and i need to go back to the gatorback. I don't know if the first belt shredding has anything to do with the alternator problem but it is also a concern which i can only think it is because of an older tensioner loosing tension.
Have any of you guys had either of the issues or any advice. I really have trouble tearing down the motor these days (just had twins, work 5 days a week and i take my weekend days during the week to watch the kids) so i really don't want to start throwing parts at this thing or have the ability to do exhaustive tests, i am just hoping some one else has had a simular issue. Thanks.