Red Light on dash

The small one with a "B" is the dual circuit brake warning light. If one of the brake circuits springs a leak, etc., the light will come on when you step on the brakes. I believe the light on your '70 is "Push-To-Test" type.

The larger red knob that looks like:

the 4-Way Hazard flasher.

Speedy Jim

"I have no use for a car which has more spark plugs than a cow has teats!" Henry Ford, when advised that Chevrolet was introducing a 6-cylinder engine.

It still comes on without hitting the brakes

Either one of the brake switches has failed, there is residual pressure on one of the hydraulic circuits, or there may be corrosion inside the rubber booties connecting to the brake switch terminals.

If you are interested, I have a diagram of the switch wiring here:

Speedy Jim

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ok, it goes off when i hit the brakes i noticed that today...

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ok, it goes off when i hit the brakes i noticed that today...

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Probably a bad switch. Failures are common. Best to swap them both out for new ones.

Jim

What's the best way to replace the bulb in the light? How does that come out of the dash (in a 70) if you know?

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Ok which Switches could be bad??? so i know wut to check??? Thanks for all your help Jim

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There are 2 switches screwed into the master cylinder. You need the 3-prong style.

They are not easy to get to. Remove the left frt tire.

No guarantees. But that's where I would start. Jim

The plastic housing has tabs behind the dash opening which hold it in. Have to get back there and release them. I don't think the front of the thing comes off for access.

Jim

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Are the covered by a rubber thing??? Or is it on the other side?

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Yes, there is a rubber boot covering the terminals. Pull the boot back and inspect inside for corrosion before doing anything else.

Jim

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ok, so iff there isn't any corrosion it sould be good???

Hmmm. Oh well, nothing is ever easy. :) Figured I'd fix that while I was oiling my speedo bearing and redoing its lights.

What would be the easiest way to pull the switches out??? Jim Thank you for all your help

The *really* easy way? Take the gas tank out.

But I would rather take the wheel off and work from in there. It's cramped for a big guy though...

Jim

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If there's no corrosion, the plugs are probably OK. The switches can still be bad.

Jim

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Well... i'm a BIG guy lol, 6'2" 195 WIDE sholders, it suck lol but i got one out, no corrosion but i'm gonna change both plugs i have to order them tho

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HaHa! Good job.

Let us know the outcome.

Jim