Idiot Brake light

[jag7720]

I have an 87 G20 (diesel) and the idiot brake light in the dash keeps coming on. If I give it a quick pump it goes off.

I checked the pads and they are fine. I also checked the brake fluid level and it is fine. The pump level was a little low so I topped it off but the light still comes on intermittently. Does this model have brake wear sensors in the pads?

I looked at both calipers and they are not leaking nor are the rear slave cylinders.


Anyone have any idea what might be going on or what to check?

Thanks

Jason

[Vinster888]

sounds like a master cylinder to me. not hard to replace and not expensive either

[jag7720]

After I topped off the pump reservoir and did some light driving for a few days, light stopped coming on.

I'll continue to watch it but that seems to have resolved the issue.


Thanks