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14 F150 battery light issue, sometimes.....

It freewheels when the windings aren't excited. The shaft always turns, but has no resistance when not producing voltage.

I had to Google, there actually IS a one-way clutch or a de-coupler. Apparently it's been around for quite a few years now. I never knew about it.

"A normal alternator is driven directly by the pulley, meaning there is always some resistance to the turning motion; although it varies depending on electrical system load."

"A freewheeling alternator has a clutch between the pulley and the alternator itself, meaning that when the battery is charged and there is a low electrical load there is a much lower braking torque on the belt."

https://www.gatestechzone.com/en/problem-diagnosis/accessory-drive-system/oap-function-tests

http://www.daycoproducts.com/what-are-oaps-and-oads-and-how-do-they-fail
 
I had to Google, there actually IS a one-way clutch or a de-coupler. Apparently it's been around for quite a few years now. I never knew about it.

"A normal alternator is driven directly by the pulley, meaning there is always some resistance to the turning motion; although it varies depending on electrical system load."

"A freewheeling alternator has a clutch between the pulley and the alternator itself, meaning that when the battery is charged and there is a low electrical load there is a much lower braking torque on the belt."

https://www.gatestechzone.com/en/problem-diagnosis/accessory-drive-system/oap-function-tests

http://www.daycoproducts.com/what-are-oaps-and-oads-and-how-do-they-fail


And you have, yet, another point of failure.
 
And you have, yet, another point of failure.

Right. I would think the benefits would be negligible, and the replacement part would cost a good bit more than a standard pulley...

The electrical system on new cars is crazy. My windshield wipers would raise up about 5 inches and then stop if it's drizzling and I had auto-sense on. They replaced 2 modules, one was $400 and the other one was $800. It was under warranty but still...$1200 to fix a minor windshield wiper problem. Oh and that was after my windshield washer quit spraying...because a filter in the reservoir got clogged. And you have to take out the passenger fenderwell liner to get to it...
 
I've had Fords all of my driving life. After the last '07 F150 I had I'm back to a Toyota and I'm not going back. That thing was a complete POS and a buddy had an '06 that was just the same. Transmission rebuilds, two piece spark plugs that break when you change them, cam phasers, coil packs. The engine started knocking at 150k and I had enough.

I traded my '02 Tacoma in for the '07 F150 because it had 250k on it and nothing was wrong with it, but I figured something was about due. I wish I would have just kept it.
 
I quit twice in 35 days.....what a horrible place to work


You know Barry their diesel guy? I heard the owners of ****zpatrick begged him to stay then but then they hired a new service manger and that dude give him an ultimatum to quit working for the shop he was at making more $ in a day then he makes in a week at Ford......
 
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