No electrical power
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8th Gear
Joined: May 2025
Posts: 8
Likes: 3
No electrical power
Hello all,
I just bought my first obs, and it’s already been quite the headache. The batteries were 10 years old and only started on jump. Went ahead and replaced both and she ran good for a couple of days. Then I opened the interior fuse box… and every fuse was replaced with a 30amp? Got them all switched out to their proper size and now the truck doesn’t even have lights. Key in ignition no gauge cluster lights, head lights, cigarette lighter. Nothing. And obviously wont even turn over. So, I replaced all of the fuses with the old 30amps that was in it and still nothing. I’m at such a loss with this thing. I’m not sure what changed overnight? All I did besides the batteries and fuses is clean the cold air intake and attempt to remove the gauge cluster bezel. Any help is greatly appreciated!
1996 F350 7.3, Partial XLT conversion from last guy
I just bought my first obs, and it’s already been quite the headache. The batteries were 10 years old and only started on jump. Went ahead and replaced both and she ran good for a couple of days. Then I opened the interior fuse box… and every fuse was replaced with a 30amp? Got them all switched out to their proper size and now the truck doesn’t even have lights. Key in ignition no gauge cluster lights, head lights, cigarette lighter. Nothing. And obviously wont even turn over. So, I replaced all of the fuses with the old 30amps that was in it and still nothing. I’m at such a loss with this thing. I’m not sure what changed overnight? All I did besides the batteries and fuses is clean the cold air intake and attempt to remove the gauge cluster bezel. Any help is greatly appreciated!
1996 F350 7.3, Partial XLT conversion from last guy
Laughing Gas
Joined: Nov 2020
Posts: 994
Likes: 367
From: Republic of Texas
First...
DO NOT EVER...NEVER.... OVER FUSE A CIRCUIT.....
You will burn your truck to the ground.
Do you get the WTS? Nothing will happen without the WTS.
Get FORScan and the OBD adapter they tell you to use. You should have an OBD II under the steering wheel area to the right, if OBD I it is under the hood. Learn to use it.
Do the attached PDF... not quite correct for your truck but close enough.
DO NOT EVER...NEVER.... OVER FUSE A CIRCUIT.....
You will burn your truck to the ground.
Do you get the WTS? Nothing will happen without the WTS.
Get FORScan and the OBD adapter they tell you to use. You should have an OBD II under the steering wheel area to the right, if OBD I it is under the hood. Learn to use it.
Do the attached PDF... not quite correct for your truck but close enough.
Lead Driver
Joined: Sep 2002
Posts: 9,554
Likes: 2,034
From: North Texas
What are you on? The OBD2 port on these is not under the driver's steering wheel. Forscan does not work with any OBD1 I have seen either.
PO of OP's truck did all the incorrect fuses.
Agree with Knotty, start there. Post pics of your batt terminals.
PO of OP's truck did all the incorrect fuses.
Agree with Knotty, start there. Post pics of your batt terminals.
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