Gremlins in the dash

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Gremlins in the dash

Postby akaFrankCastle » Sun May 18, 2014 8:19 pm

Having a slight electrical issue and looking for some help with troubleshooting before I tear the dash out.

1. On the instrument cluster, PS turn signal indicator stays illuminated while lights are on.

2. Turn signals go out (fuse pops) after no more than two uses of turn signals. Hazards are unaffected.

3. Gauges do not function. Two instrument cluster voltage regulators are now in the trash after gauges worked for a few seconds and then a barely audible click was heard followed by no gauges working again.

#2 and 3 tell me voltage is above expected in at least two places.

I'd really like to get this figured out before I burn up my other two volt regs.

Thoughts?
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1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.

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1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.

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Re: Gremlins in the dash

Postby Colorado75bronc » Sun May 18, 2014 9:10 pm

Sounds like one or multiple shorts to ground, I'll come help you figure it out tomorrow night after work, in the mean time look for chafed or pinched wire, screws run through wiring in the dash, especially in the channel where the majority of the dash harness runs along the lower inside of the dash


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Re: Gremlins in the dash

Postby Kinder » Sun May 18, 2014 9:19 pm

What he said ^
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Re: Gremlins in the dash

Postby Viperwolf1 » Sun May 18, 2014 11:03 pm

#1 is a bad ground at the front turn light.

#2 is a short to ground. Possibly inside the turn signal switch.
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Re: Gremlins in the dash

Postby Gregg » Mon May 19, 2014 7:47 am

I'd just buy a ton of these. There might be some wiggle room on the $$$ if you buy them in bulk. Rumor has it that Adv Auto is overcharging gullible Bronco owners in the Springs.
http://www.wildhorses4x4.com/product/In ... _Regulator
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Re: Gremlins in the dash

Postby Digger » Mon May 19, 2014 9:59 am

Viperwolf1 wrote:#1 is a bad ground at the front turn light.

#2 is a short to ground. Possibly inside the turn signal switch.


Definitely bad ground on #1. Check ground connection and socket. My turn signal socket is almost new and if the bulb rattles around to the right spot, it breaks contact with the ground.

On #2, hazards and turn signals use different flasher units, so you may have bad flasher unit.
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