Alternator rebuild
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Cargo Master
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Alternator rebuild
Anyone ever rebuild an alternator for a 2017 F150 with the 2.7l ecoboost?
I've done them on cars older than 2005 but nothing in a while and I can't seem to find a Youtube for it.
I've done them on cars older than 2005 but nothing in a while and I can't seem to find a Youtube for it.
Lead Driver
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From: Mts. S. of San Francisco
I agree. The parts are going to be a challenge; even if it's just bearings. The rectifier may be an all-in-one unit, but I've never had one apart. For that matter, the rectifier and voltage regulator might be an integrated unit.
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Cargo Master
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Actually found a guy here locally that rebuilds alternators on big equipment. BS'ed with him for a bit and he said he could probably do it if I didn't need it right away, which I don't. Gonna take it in and have him give me a quote.
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Cargo Master
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Shop tested it and said so. Apparently the battery is good but the alternator is bad.
Good thing is I found this local alternator repair guy. He'll check it first to make sure it's bad and if so fix it. There used to be another guy blocks from my house that did the same thing. His dad started the business back in the 60s or something and this fella picked up where his dad left off. I've taken him a couple dozen alternators and starters over the years but he retired and sold all his equipment a couple years ago. Rebuilt alternators/starters at Autozone cost $150+ and you never know what you're getting. From the local rebuild guy they're $50-60 and he puts in all new wear parts (brushes, bearings, etc.)
Good thing is I found this local alternator repair guy. He'll check it first to make sure it's bad and if so fix it. There used to be another guy blocks from my house that did the same thing. His dad started the business back in the 60s or something and this fella picked up where his dad left off. I've taken him a couple dozen alternators and starters over the years but he retired and sold all his equipment a couple years ago. Rebuilt alternators/starters at Autozone cost $150+ and you never know what you're getting. From the local rebuild guy they're $50-60 and he puts in all new wear parts (brushes, bearings, etc.)
Last edited by qman; Apr 30, 2026 at 01:04 PM.
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My daughter had her alternator replaced by a Ford dealer in Moline, Illinois and the dealer charged her $1600. The alternator itself on TASCA sells for $900. The dealer charged her $925 plus labor and all the other BS they can get away with.
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Fleet Mechanic
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This makes me want to find a newer alternator at the junkyard and see what's inside. I rebuit a 3G alternator and it was not difficult. I'll wait for the next alternator sale and grab one for about $30.
Last edited by Don Ridley; Apr 30, 2026 at 06:37 PM.
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Cargo Master
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I did that when the alternator went bad on my Accord. Immediately went to the UpullAndPay and grabbed one for $35 and installed it. Repair guy refurbished it for $60-70 and put it back in. I still have the JY one on Craigslist. Just trying to get my $35 back. UpullAndPay alternators are $40 now.
Last edited by qman; Apr 30, 2026 at 06:26 PM.
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From: Maine, Virginia
WTFork!!! The Motorcraft alternator on Rock Auto is $500 and it takes about 10 min to swap. Too bad you don't know a guy who knows a guy.
I did that when the alternator went bad on my Accord. Immediately went to the UpullAndPay and grabbed one for $35 and installed it. Repair guy refurbished it for $60-70 and put it back in. I still have the JY one on Craigslist. Just trying to get my $35 back. UpullAndPay alternators are $40 now.
I did that when the alternator went bad on my Accord. Immediately went to the UpullAndPay and grabbed one for $35 and installed it. Repair guy refurbished it for $60-70 and put it back in. I still have the JY one on Craigslist. Just trying to get my $35 back. UpullAndPay alternators are $40 now.
This is an F around and find out moment!!! On her way back to Moline, she had just gotten through the mountains in W. Virginia and it started acting up again. Hundreds of miles from her base and my home, she was butt clinching it the rest of the way.
The truck in question is a 2018 F150 with the 3.5L which has been known to have alternator issues. No One Listens to Dad!!!
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Cargo Master
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OK so he didn't have the patience and bought one off Rockauto. We swapped it in last night and he tore the rubber boot that covers the power cable to the alternator. I'm having a hard time finding parts diagrams for this truck.
2017 F150 with 2.7 l ecoboost
2017 F150 with 2.7 l ecoboost