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Isuzu Trooper Owners Club UK™ Isuzu Trooper, Rodeo, Bighorn, Mu & VehiCROSS Owners Club
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moonoroof ***
Joined: 04 Feb 2007 Posts: 222 Location: IRELAND
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Posted: Wed Sep 22, 2021 19:03 Post subject: Alternator!!!! |
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My Trooper 3.0 wasn’t charging as it should. Meter fluctuating, sometimes it would sit at 6v, then move to 10, then a maximum of 13V.
Fitted a brand new blue relay and that didn’t help. I bit the bullet and had a new 90amp alternator fitted. It’s improved the charging, but the maximum input at idle is 13.9V. Two of my friends have 3.0 Troopers, so I checked both of them today and each are reading 14.5 V at idle.
I wonder what’s wrong!
Any help in finding the solution would be appreciated.
Thanks
Michael |
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Posted: Wed Sep 22, 2021 19:03 Post subject: Google Ads keep this community free to join! |
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Versatile **
Joined: 19 Aug 2015 Posts: 50 Location: Worcestershire
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Posted: Tue Sep 28, 2021 17:04 Post subject: |
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Is the 'new' alternator from Isuzu or is it a pattern ?
I think it makes a difference. I'm sure I've read here that it won't work as intended if it's not a genuine part from Isuzu.
Probably something to do wit the reg/rec in the alternator.
If it is genuine then are the belts at the correct tension ? It doesn't take much slip to slow down the charging. |
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moonoroof ***
Joined: 04 Feb 2007 Posts: 222 Location: IRELAND
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Posted: Wed Sep 29, 2021 12:50 Post subject: |
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Versatile wrote: |
Is the 'new' alternator from Isuzu or is it a pattern ?
I think it makes a difference. I'm sure I've read here that it won't work as intended if it's not a genuine part from Isuzu.
Probably something to do wit the reg/rec in the alternator.
If it is genuine then are the belts at the correct tension ? It doesn't take much slip to slow down the charging. |
Thanks
It's a 90 amp pattern one.
Got my mechanic to check it. It's putting out 14.5 V alright, but the voltage is a bit less on the gauge and at the batteries: 13.8V. The belts are tight too.
He's going to do a few more checks next week to see what's happening |
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