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#1
09-11-2004, 07:51 PM
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in a 74 g/p what's involved in swapping out a plain dash [no guages] to a factory tach with guages dash. are there a couple of wires to swap like in the 71-2 cars or does the whole harness need changed?
i have the tach dash and the aux tach harness. i used to know this but it's been too long and i don't remember anymore. thanks for any info, mike
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so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#2
09-11-2004, 07:51 PM
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in a 74 g/p what's involved in swapping out a plain dash [no guages] to a factory tach with guages dash. are there a couple of wires to swap like in the 71-2 cars or does the whole harness need changed?
i have the tach dash and the aux tach harness. i used to know this but it's been too long and i don't remember anymore. thanks for any info, mike
__________________
so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#3
09-12-2004, 04:11 PM
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Mike, when I switched mine out, I was told the complete harness. What a mess. Lights and wipers wouldnt work. Finally got lights working by matching wire locations in the firewall box. I used 75 guages for my 77. Had wipers working but not now. They wont shut off. Have tried 2 switches and 2 motors. Still same, just keep clicking. I think I may have been able to just wire the tach and new sending units. Everything else works. Good Luck.
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1974 Grand Prix Model J |
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#4
09-13-2004, 12:00 PM
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your wipers not parking is a ground issue. on that gen of chevy truck it's the yellow wire.
if the cars are like the trucks 77 was the yr the harness changed. i have a 74 guage cluster with the tach and was hoping someone else had done this. i have the 74 guage harness but it's been hacked over the yrs. thanks, mike
__________________
so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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#5
09-13-2004, 02:54 PM
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Mine came out of a Grand Am, I have 77 GP, and I just unplugged my old harness and plugged the new one in. All the gauges worked except the tach. still haven't been able to figure that out.
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#6
09-13-2004, 07:00 PM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by mwhitney:
Mine came out of a Grand Am, I have 77 GP, and I just unplugged my old harness and plugged the new one in. All the gauges worked except the tach. still haven't been able to figure that out. <HR></BLOCKQUOTE> the tach has a seperate harness to power /feed it. did your car have guages or idiot lights? mike
__________________
so many pontiacs, so little time.................. moderator is a glorified word for an unappreciated prick.................. "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." --Albert Einstein "There is no such thing as a good tax." "We contend that for a nation to tax itself into prosperity is like a man standing in a bucket and trying to lift himself up by the handle." - Winston Churchill |
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