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Ron I have a 00 Mazda 2500. Replaced the alternator and

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Ron I have a 00...
Ron I have a 00 Mazda B 2500. Replaced the alternator and still won't charge. Had the alt tested and it's good. Any help is appreciated
Submitted: 5 months ago.Category: Ford
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Answered in 1 minute by:
11/25/2017
Ford Mechanic: Ron, ASE Certified Technician replied 5 months ago
Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 37,815
Experience: 23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
Verified

Hello. My name is ***** ***** I am happy to assist you today. Give me just a moment to review your post, and I'll be right back with the help you need.

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Ford Mechanic: Ron, ASE Certified Technician replied 5 months ago

Chris,

Do you have a 12-volt test light or a voltmeter so we can check a few things?

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Customer reply replied 5 months ago
but I'm not with the truck at the moment
Ford Mechanic: Ron, ASE Certified Technician replied 5 months ago

Okay, when you there let me know and we can get this figured out. When you get home the first thing I need you to do is to check the ALT (30 AMP) located in the under hood fuse panel as well as the Fuse 15 (7.5 AMP) located in the interior fuse panel to be sure both are in place and have power in and out of them. Let me know the results and we can work from there. I'm here all day.

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Customer reply replied 5 months ago
Thank you will respond shortly
Ford Mechanic: Ron, ASE Certified Technician replied 5 months ago

I'm here when you're ready.

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Customer reply replied 5 months ago
All of the fuses check out
Customer reply replied 5 months ago
Hey Ron are you around?
Ford Mechanic: Ron, ASE Certified Technician replied 5 months ago

Okay, what I need you to do now is take your 12-volt test light and or a voltmeter and with the engine running back probe the yellow wire as well as the black /orange wire and the smaller Green.red wire and let me know what the voltage reading is on all three.

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Customer reply replied 5 months ago
Green wire 14 volts
O volts everywhere else
Customer reply replied 5 months ago
I checked that earlier. I'm on my way into work now
Ford Mechanic: Ron, ASE Certified Technician replied 5 months ago

Okay have a look at the enclosed wiring diagram and if both are dead the check the mega fuse located on the underhood fuse panel. All three wires need battery voltage and I suspect your mega fuse may be blown.

https://www.dropbox.com/s/y7ctezepx07zt3a/Alt%20Nov%2026.pdf?dl=0

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Ford Mechanic: Ron, ASE Certified Technician replied 5 months ago

Just checking in to see if your still needing help with this, if so please post back and we can work from there if need be. If not then please take a moment to rate my service so I can get credit for my time, the question remains open for follow up even after doing so, all you need to do is return to this question if need be.

Thank you again.

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Ron
Ron, ASE Certified Technician
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Experience: 23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs

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