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Long story short, need to temporarily swap alternator roles
plan is is to make some pcm extension cables and swap the connections
purpose is to see if a fault I am getting on primary alternator will follow the alternator when I make the primary the secondary. Suggesting bad primary
if it doesn’t follow and faults remain with logical primary circuit, this would suggest problem with primary circuit pcm connection or pcm.
so I plan to do this today
putting it out there in case there is some spooky reason this won’t work
prinary is the 153amp alternator and secondary is the 220 amp alternator
my assumptions used that the pcm pin out connections are the same.
getting a battery light with service charging circuit now
local dealership has zero warranty appts til july
if it turns out to be an alternator , my spring this out of pocket
also have a voltage regulator on the way which could make this a very low cost repair .
I admire your persistence to find what the issue is...BUT I would of made a call to Ford Corp to inform them of your displeasure with a NEW truck having issues and the dealer giving you such a long appointment. IMO this is not acceptable, The warranty doesnt mean crap..And when they finally accept your truck, are you going to wait weeks for a part.
This kind of news makes me question Ford and their priorities towards customer satisfaction. Im just so blown away by the lack of customer service
Good Luck my friend, dont do something that Ford is going to reject fixing due to you messing with the truck
I would build a rig to bench test the alternator to a battery. The alternators are different bolt in configurations or I would try moving them in position. Have you read through all the big thread on how they work, they don’t actually act as primary and secondary on one at a time. The first comes on, if there is demand the second comes on and both stay on to demand. The first one to shut off will be the hotter one. Just an idea. Also do you have a buddy with the same truck, or at least twin alternators, swap in and swap out to test?
I thought in you pr other test of the main fuse issue was where you would find something. What if you bypass that circuit?
Long story short, need to temporarily swap alternator roles
plan is is to make some pcm extension cables and swap the connections
purpose is to see if a fault I am getting on primary alternator will follow the alternator when I make the primary the secondary. Suggesting bad primary
if it doesn’t follow and faults remain with logical primary circuit, this would suggest problem with primary circuit pcm connection or pcm.
so I plan to do this today
putting it out there in case there is some spooky reason this won’t work
prinary is the 153amp alternator and secondary is the 220 amp alternator
my assumptions used that the pcm pin out connections are the same.
getting a battery light with service charging circuit now
local dealership has zero warranty appts til july
if it turns out to be an alternator , my spring this out of pocket
also have a voltage regulator on the way which could make this a very low cost repair .
thanks
Haven't done it for awhile but used to full field alternators, if output is good (inductive amp meter) regulator or module, if not it's the alternator. There used to be A or B circuits. A fields were given ground to output and B were given juice. Nothings simple anymore.
Thanks for posting problem. The alternators simple, it's the control side that is complicated. Of course unplug wires.
Well, it’s part swapping but any alternator that’s correct to fit, is a good test. Any size, same mounting and plug will work. If it doesn’t work you take it back.
Your local dealer needs to Ford up and help you. I would be talking to the service manager, the sales manager and the unit manager. Their shop needs this work and it’s utterly ludicrous they are not fitting you in. They don’t have trucks to sell, they are laying off dealer employees, no sales, not enough service business and when they do get some warranty work to pay their staff they don’t want to give you an appointment for 4 months.
Well, it’s part swapping but any alternator that’s correct to fit, is a good test. Any size, same mounting and plug will work. If it doesn’t work you take it back.
Your local dealer needs to Ford up and help you. I would be talking to the service manager, the sales manager and the unit manager. Their shop needs this work and it’s utterly ludicrous they are not fitting you in. They don’t have trucks to sell, they are laying off dealer employees, no sales, not enough service business and when they do get some warranty work to pay their staff they don’t want to give you an appointment for 4 months.
Sorry for the rant, I feel for you!
Usually there is a no return on electrical parts, that is strictly followed, especially after something like marks from mounting an alternator. You can hurt an electrical part and never know it. I know it's done with dealerships and garages. I would not want something used that I bought new. That's a tough area, as specialty component testers are usually not readily available.
I called ford service complaint hot line and they took my complaint. they indicated they were going to just send it to the dealership
I also looked at the local dealership site to see if there was a survey link and wound up on a chat with their internet response team. I asked them for a link to rate the 22 feb service response I got and they took my info.....a few minutes later...service manager emails me and says they will find an appt.
so maybe will not have to go out of state after all.
That’s good speakerfritz. At least you have something. They should be doing all the swapping and testing, and on a truck with such low miles and so new, I sure hope Ford does something good for you. That connector that won’t unclip sounds like a good place for them to start. Don’t tell to much, give them all the issues and symptoms and let them start at their step 1.
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