67 GTX gauge issue popped up this year
#2911556
04/18/21 10:22 AM
04/18/21 10:22 AM
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Joined: Sep 2005
Posts: 1,978 USA
Suregrip391
OP
top fuel
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OP
top fuel
Joined: Sep 2005
Posts: 1,978
USA
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Does anyone have any advice for what’s going on here.
Gas and temp gauges work only (sweep up) with the headlight switch pulled out into the on position. This was not an issue when I put the car away last fall for the winter. This is problem number one.
Number two....The year prior, I installed a new turn signal switch and when I completed that job, I found that my tail lights were on all the time and I had to turn my dimmer switch down to shut them off when cruising, brake lights still worked fine. This problem went away on its own later in the year. I never did find the issue. It may be back now, I’ll have to check. Have not driven the car yet, still in storage. I just changed the trans fluid and had the gauge issues mentioned above,
So I have had two issues now, can this be chalked up to a bad Chineese turn signal switch? Do the circuits meet each other? I want to say I got it from a well known vendor here and it was around $75 (repop).
Much help appreciated. Thanks!
Last edited by Suregrip391; 04/18/21 10:26 AM.
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Re: 67 GTX gauge issue popped up this year
[Re: Suregrip391]
#2911589
04/18/21 11:52 AM
04/18/21 11:52 AM
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Joined: Sep 2003
Posts: 19,336 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,336
north of coder
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grounds can cause all kinds of issues when they go bad. how stiff is the dash wiring harness ? when the issues occur, have you reached under and wiggled the harness ? as for the turn signal switch, how is the connection at the base of the column where it connects to the harness ? look closely at the terminals in the connector block for corrosion or looseness, as well as insulation cracks [possibly as far as a couple inches from the connector block].
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Re: 67 GTX gauge issue popped up this year
[Re: Andrewh]
#2911623
04/18/21 01:20 PM
04/18/21 01:20 PM
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Joined: Sep 2005
Posts: 1,978 USA
Suregrip391
OP
top fuel
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OP
top fuel
Joined: Sep 2005
Posts: 1,978
USA
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I think you might have the wrong headlight switch. If it started when you did that, I would look their first. if you still have the old one, I would reinstall and see if both issues persist, depending on what was wrong with the old one. The headlight switch was never changed....
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Re: 67 GTX gauge issue popped up this year
[Re: moparx]
#2911627
04/18/21 01:21 PM
04/18/21 01:21 PM
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Joined: Sep 2005
Posts: 1,978 USA
Suregrip391
OP
top fuel
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OP
top fuel
Joined: Sep 2005
Posts: 1,978
USA
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grounds can cause all kinds of issues when they go bad. how stiff is the dash wiring harness ? when the issues occur, have you reached under and wiggled the harness ? as for the turn signal switch, how is the connection at the base of the column where it connects to the harness ? look closely at the terminals in the connector block for corrosion or looseness, as well as insulation cracks [possibly as far as a couple inches from the connector block]. I’ll check out the connections Eric, thanks!
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Re: 67 GTX gauge issue popped up this year
[Re: Suregrip391]
#2911631
04/18/21 01:38 PM
04/18/21 01:38 PM
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Joined: Sep 2003
Posts: 19,336 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,336
north of coder
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the only place the headlight and turn signal switches meet [if i remember correctly...... ] would be where the harness connects at the kick panel [or thereabouts] to go to the rear of the car. the turn signal switch powers only the bright filaments of the bulbs, front and rear. [with the rear going through the brake light switch] if the rheostat of the headlight switch controls the rear [running/tail] lights, something is not right with the [headlight] switch, the switch plug, or the harness attaching to the switch [which could be most anywhere the wires are close to one another, think cracking insulation]. mr. "slow man at work" has pulled much hair out at times trying to figure out "simple" [ ] wiring problems.
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Re: 67 GTX gauge issue popped up this year
[Re: Suregrip391]
#2911640
04/18/21 01:57 PM
04/18/21 01:57 PM
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Joined: Feb 2003
Posts: 8,670
Andrewh
master
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master
Joined: Feb 2003
Posts: 8,670
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I think you might have the wrong headlight switch. If it started when you did that, I would look their first. if you still have the old one, I would reinstall and see if both issues persist, depending on what was wrong with the old one. The headlight switch was never changed.... sorry read that wrong. Turnsignal switch then. or it was wired wrong.
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Re: 67 GTX gauge issue popped up this year
[Re: Andrewh]
#2911641
04/18/21 02:01 PM
04/18/21 02:01 PM
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Joined: Sep 2005
Posts: 1,978 USA
Suregrip391
OP
top fuel
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OP
top fuel
Joined: Sep 2005
Posts: 1,978
USA
|
I think you might have the wrong headlight switch. If it started when you did that, I would look their first. if you still have the old one, I would reinstall and see if both issues persist, depending on what was wrong with the old one. The headlight switch was never changed.... sorry read that wrong. Turnsignal switch then. or it was wired wrong. Anything is possible, it was the only one listed for a 67 on his site. Wiring was just plug and play with the harness. I’ll look into that as well, thanks.
Last edited by Suregrip391; 04/18/21 02:02 PM.
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