Noob with alternator problems

[turbomad]

Hi guys just joined as I have bought a recovery truck for taking my drift car to events

Brief history

I bought it off a mate
Ended up needing sills ect so I welded in new ones for mot
Then it started to make a horrible noise from the bellhousing which I thought was the flywheel but turns out it was the starter so I replaced it sorted the noise

Then a few days later the battery light come on so I replaced battery as this van had sat since last mot it didn't help so I checked alternator had 0 volts at the terminal on the alternator so bought a new one off eBay (repaired bosch) fitted it and the battery light went out but the van is still not charging
when I put the multimeter across battery I get 11v and if I put load on I can watch it go down by the second
I have checked all fuses they are fine checked the charge relay it clicks when you plug it back in I got a replacement alternator yesterday as I thought it was just a dud alternator made no difference 0 volts at the alternator when running so kind of running out of ideas the plug with 3 wires what are they doing? As i can look at them one of the wires looks to of had a repair as I can see scotch locks on it

Any help will be appreciated

Thanks
Stefan

Sent from my SM-G960F using Tapatalk

[knobby1]

Would help if you told us what year model, engine etc, Mk6 or Mk7...as the charging systems are a tad different.

Lord Knobrot

[RustWidow]

Scotchlocks suggest an accessory was fitted and now has been removed... isn’t there a thread with wiring diagrams etc lurking about on the forum?

Hope you get to the bottom of this.

[Ml Autos]

Hi guys just joined as I have bought a recovery truck for taking my drift car to events

Brief history

I bought it off a mate
Ended up needing sills ect so I welded in new ones for mot
Then it started to make a horrible noise from the bellhousing which I thought was the flywheel but turns out it was the starter so I replaced it sorted the noise

Then a few days later the battery light come on so I replaced battery as this van had sat since last mot it didn't help so I checked alternator had 0 volts at the terminal on the alternator so bought a new one off eBay (repaired bosch) fitted it and the battery light went out but the van is still not charging
when I put the multimeter across battery I get 11v and if I put load on I can watch it go down by the second
I have checked all fuses they are fine checked the charge relay it clicks when you plug it back in I got a replacement alternator yesterday as I thought it was just a dud alternator made no difference 0 volts at the alternator when running so kind of running out of ideas the plug with 3 wires what are they doing? As i can look at them one of the wires looks to of had a repair as I can see scotch locks on it

Any help will be appreciated

Thanks
Stefan

Sent from my SM-G960F using Tapatalk

Negative lead

[slugmeister]

Since you changed the starter, check the wiring. Your symptoms are the same as when I removed the starter and put it back on with it wired wrong.

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