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Topic: keep blowing turn signal fuses (Read 1243 times) previous topic - next topic

keep blowing turn signal fuses

I have an 84 cougar, it was once a turbo, but bought it without the  motor and trans. It now has 302 and an aod. The signals work fine when the car is sitting still (in park, drive or reverse) at an idle or with some engine revs, but when I take it for a test run I can hear the fuse blow (usually within 10 - 30 seconds) even though the signals are not being used. I've tried new signal switch, flasher, better body ground and the grounds at the light harnesses. The reverse lights are not hooked up and thought maybe the hot wire could be grounding out but can't find it. Any ideas?

Re: keep blowing turn signal fuses

Reply #1 –
I'd look for a pinched or chaffed harness in or around the steering column and pedals
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

Re: keep blowing turn signal fuses

Reply #2 –
I didn't find the problem but I did get around it. I used a spade terminal and put it in the hot side of the fuse and then put in an inline fuse holder followed by a flasher and found the feed wire to the signal switch, hooked it up and it worked. So you were probably right about the chaffed wire, it must be bad between the original fuse and flasher unit somewhere. I hope as long as I'm not feeding power through that wire it does not cause any further problems.