Electrical maintenance + troubleshooting, A checklist |
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Electrical maintenance + troubleshooting, A checklist |
mburkhart |
Aug 12 2011, 01:28 PM
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#1
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Member Group: Members Posts: 112 Joined: 3-July 05 From: Chester, MD Member No.: 4,364 Region Association: MidAtlantic Region |
My car keeps blowing fuses #8 and #9. I've spent a fair amount of time searching this forum about what to do about it, and I've gathered a lot of what I've found together into a "electrical maintenance" list that I'm going to go through over the next couple of weeks to try to fix my problem. Thought I'd share it here so folks can give feedback.
Cleaning grounds
With a voltmeter:
Fuses (left to right)
Common electrical issues Car won't start
No power to gauge lights, turn signals, wipers, horn, tachometer, voltmeter, fuel gauge, etc. Alternator (āGā) light is on.
Fuse #9 keeps blowing
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914Mels |
Aug 12 2011, 03:18 PM
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#2
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Member Group: Members Posts: 357 Joined: 20-June 11 From: Santee Member No.: 13,221 Region Association: Southern California |
How often do the fuses blow? as soon as you put them in? If so try pulling the wires off the fuse panel till you find the one that blows the fuse. Trace that wire to find the problem area. Seeing as you have two that blow together, maybe a screw went through the harness somewhere? If the fuse doesn't blow till your driving, try and keep track of what you did, used turn signals, turned on lights, etc. To avoid burning through a ton of fuses, you could wire up a two prong turn signal flasher relay and hook it across the fuse terminals. the relay will open when the current gets too high and allow you a little more dianostic time with out popping fuses one after another.
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Dave_Darling |
Aug 12 2011, 04:25 PM
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#3
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914 Idiot Group: Members Posts: 14,990 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
BTW, I think the 74+ 914s do not have the power distribution block up above/behind the fuse panel.
--DD |
Mike Bellis |
Aug 12 2011, 09:04 PM
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#4
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None |
I had #8 blowing randomly. I finally tracked it down to the gas pedal linkage catching on the brake light switch behind the pedals.
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