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LewisTheBus Samba Member
Joined: June 10, 2017 Posts: 18
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Posted: Sat Aug 25, 2018 9:51 am Post subject: Number 9 Fuse Keeps Popping |
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I finally was able to get my bus moving and driving after ages of it sitting in garage. After a few short trips I had stopped and pulled the hand brake when
suddenly the number 9 fuse popped. I was no longer able to start the car, as it seems its integral to the ignition switch. I have checked all connections and
removed anything I have added since I once had it running to no avail. The fuses I replace continue to pop. Any suggestions? _________________ 1977 2.0L FI Westy "Lewis" |
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Sat Aug 25, 2018 10:02 am Post subject: Re: Number 9 Fuse Keeps Popping |
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what does the owners's manual say is on that fuse?
https://www.thesamba.com/vw/archives/manuals/77bus/77II-40.jpg _________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51153 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Sat Aug 25, 2018 10:11 am Post subject: Re: Number 9 Fuse Keeps Popping |
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LewisTheBus wrote: |
.......pulled the hand brake when suddenly the number 9 fuse popped.... |
There's a clue there, maybe look up under the dash and see what gets pinched? _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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LewisTheBus Samba Member
Joined: June 10, 2017 Posts: 18
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Posted: Sat Aug 25, 2018 10:23 am Post subject: Re: Number 9 Fuse Keeps Popping |
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The owner's manual states it as "accessory" which is where my conundrum started and was also the reason I had wired some other things onto that circuit, but even when removed it doesn't change. My gauge cluster is not currently secured properly and I heard the fuel gauge can short out on the car, could that be the culprit?it still seems odd that the "accessory" fuse controls ignition _________________ 1977 2.0L FI Westy "Lewis" |
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telford dorr Samba Member
Joined: March 11, 2009 Posts: 3555 Location: San Diego (Encinitas)
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Posted: Sat Aug 25, 2018 11:05 am Post subject: Re: Number 9 Fuse Keeps Popping |
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The starting and ignition circuits are unfused, which means that the engine should start with all fuses removed. This means something is bogus in your wiring, and definitely non-stock. As such, you'll just have to track it down the hard way - inspect and trace everything. Download the schematic from Technical and get it printed (8.5 x 14) and laminated at Kinkos.
To make it easier, build one of these:
You'll need a headlight bulb (the Bus has two), a generic bulb socket, some wire and a couple of clips (from your nearby FLAPS). Remove the blown fuse, and clip this across the fuse contacts. The bulb will light up brightly until you find the short, at which point it should dim or go out completely. Disconnect and insulate the wires at the #15 (+) terminal of the coil to keep from cooking it while you conduct your search for the short.
Good luck. _________________ '71 panel, now with FI
'Experience' is the ability to recognize a mistake when you're making it again - Franklin P. Jones
In theory, theory works in practice; in practice, it doesn't - William T. Harbaugh
When you're dead, you don't know you're dead. The pain is only felt by others.
Same thing happens when you're stupid. - Philippe Geluck
More VW electrical at http://telforddorr.com/ (available 9am to 9pm PST) |
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LewisTheBus Samba Member
Joined: June 10, 2017 Posts: 18
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Posted: Sat Aug 25, 2018 2:02 pm Post subject: Re: Number 9 Fuse Keeps Popping |
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Solved! Just a poor connection at the ignition switch, thanks for the help guys. _________________ 1977 2.0L FI Westy "Lewis" |
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telford dorr Samba Member
Joined: March 11, 2009 Posts: 3555 Location: San Diego (Encinitas)
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Posted: Sat Aug 25, 2018 3:11 pm Post subject: Re: Number 9 Fuse Keeps Popping |
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Doesn't explain why fuse 9 blew... _________________ '71 panel, now with FI
'Experience' is the ability to recognize a mistake when you're making it again - Franklin P. Jones
In theory, theory works in practice; in practice, it doesn't - William T. Harbaugh
When you're dead, you don't know you're dead. The pain is only felt by others.
Same thing happens when you're stupid. - Philippe Geluck
More VW electrical at http://telforddorr.com/ (available 9am to 9pm PST) |
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mark d Samba Member
Joined: February 06, 2013 Posts: 219 Location: Costa Rica
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Posted: Sat Aug 25, 2018 4:41 pm Post subject: Re: Number 9 Fuse Keeps Popping |
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hey telford, that's a great trick. thks for passing on _________________ 1972ish westfalia
"what good are tractors without violins ?" jose figueres |
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LewisTheBus Samba Member
Joined: June 10, 2017 Posts: 18
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Posted: Sun Aug 26, 2018 12:15 pm Post subject: Re: Number 9 Fuse Keeps Popping |
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the only thing connected to the #9 fuse is a double connector with 2 red wires, one going to the headlight switch and one going to the ignition switch, when I fixed the connection the fuse stopped popping, do you think this is only temporary? _________________ 1977 2.0L FI Westy "Lewis" |
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vwwestyman Samba Member
Joined: April 24, 2004 Posts: 5688 Location: Manhattan, Kansas, USA
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