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kirk knighton
Samba Member
Joined: January 23, 2005
Posts: 282
Location: Seattle
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 Posted: Tue Jan 31, 2023 8:35 pm Post subject: Upshift light all wonky, 1985 Cabriolet |
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All of a sudden my upshift light has gone crazy. It's on, it's off, all random. Stays on full-time when in 5th gear ( which is when it's supposed to be entirely off! ).
Is there a loose connection I can check somewhere? |
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ps2375
Samba Member
Joined: April 24, 2014
Posts: 2471
Location: Meridian,ID
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| Posted: Wed Feb 01, 2023 12:33 pm Post subject: Re: Upshift light all wonky, 1985 Cabriolet |
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| It gets input from a vacuum switch up near throttlebody, and from a switch mounted on top of the trans that has the reverse sw and all the other contacts for gear position. |
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kirk knighton
Samba Member
Joined: January 23, 2005
Posts: 282
Location: Seattle
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| Posted: Wed Feb 01, 2023 8:57 pm Post subject: Re: Upshift light all wonky, 1985 Cabriolet |
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| Thank you, I will look at both places tomorrow! |
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Butcher
Samba Member
Joined: December 05, 2015
Posts: 1285
Location: Right Here
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| Posted: Thu Feb 02, 2023 7:58 am Post subject: Re: Upshift light all wonky, 1985 Cabriolet |
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I know I would just dump that system but I suspect that the transmission switch is the main culprit. It should never go of in 5th gear.
Water and mice may have some influence too. |
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kirk knighton
Samba Member
Joined: January 23, 2005
Posts: 282
Location: Seattle
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| Posted: Thu Feb 02, 2023 10:25 am Post subject: Re: Upshift light all wonky, 1985 Cabriolet |
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| Butcher wrote: |
I know I would just dump that system but I suspect that the transmission switch is the main culprit. It should never go of in 5th gear.
Water and mice may have some influence too. |
You may be right about water; it began a couple of weeks ago after the car was sitting out in the rain all day. At the same time my windshield wipers went wonky too: all three settings gads the same speed, and they wouldn't shut off! After about ten dry days the wipers are back to normal, but the upshift light is still crazy.
What to do? |
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ps2375
Samba Member
Joined: April 24, 2014
Posts: 2471
Location: Meridian,ID
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| Posted: Thu Feb 02, 2023 2:00 pm Post subject: Re: Upshift light all wonky, 1985 Cabriolet |
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| You can disconnect the vacuum switch, that should disable the light, I believe. |
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