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Tachometer/Oil Pressure Gaige/Ebrake light

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Old Nov 12, 2020 | 01:45 AM
  #1  
Wyatt Thomas's Avatar
Wyatt Thomas
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Default Tachometer/Oil Pressure Gaige/Ebrake light

I’m not an electrical guy. So I’m pretty lost here.

So my tachometer, oil pressure gauge and e-brake light all stopped working within 2 or 3 days of each other. Wondering if they are somehow related.

Tachometer is stuck at 500 rpms and doesn’t move at all.

Oil pressure gauge is spiked at the 4 o’clock position and doesn’t move whatsoever when the car is on. I’ve checked the sending unit, no loose wires.

and my ebrake light just stopped working, brand new bulb.

any and all help appreciated.



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Old Nov 12, 2020 | 03:41 AM
  #2  
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Your car is build around the heater core, but the fuse panel was put in next. The panel is very difficult to reach, underneath the dash. I've taken the front seat out to get to it before, but you don't need to.

A wiring diagram can be found here:
http://wordpress.keystonestatecorvet...m/?page_id=118

Take a picture with your phone and see if you can ID any blown glass fuses. If nothing is obvious, check continuity of the fuses with a multimeter. You can also use this to check the battery voltage both off and running.

As an aside, does the "Brake" light light when you start the car (it should be illuminated during cranking)? If yes, the problem is the switch under the parking brake handle.

Hopefully that's enough to get you started, before you run around the car checking and cleaning every ground connection.
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Old Nov 12, 2020 | 10:17 AM
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I ask this question to check and see if it was you that affected the system.

Did this happen shortly after you installed the brand new lamp for the emergency brake?

If so, that may change the troubleshooting sequence.
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