Brake leak
Brake leak
hi guys i noticed about two weeks ago that my e brake light was on someone told me its because my fluid was low. so about this time last week i filled it back up the light never turned off i drove for about a week. today when i went to change my air filter i noticed this leak and i have no clue where exactly it is coming from and what i need to fix it or if i wil need a new one. here are the pictures any info would be great thanks.
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Brake leak
If it's not coming from the master cylinder or its lines above it, it's the combination valve itself.
Supreme Member

Joined: Dec 2012
Posts: 1,356
Likes: 15
From: northern VA
Car: 88 Sport Coupe Camaro
Engine: V6 2.8
Transmission: Borg-Warner T-5
Axle/Gears: RPO/GU6: 3.42
Re: Brake leak
So, are we looking at the proportioning valve in those pics?
Rotated 90 degrees (opposite directions) from vertical in each respective pic?
So, basically you are showing us a tilted and close-up view of this?:

I think I'd want to know what the master cylinder assembly above it looks like.
It could be something as simple as you spilled brake fluid when you were refilling the reservoir after the light on your dashboard came on.
If you wipe the fluid off that area, does it reappear?
Rotated 90 degrees (opposite directions) from vertical in each respective pic?
So, basically you are showing us a tilted and close-up view of this?:

I think I'd want to know what the master cylinder assembly above it looks like.
It could be something as simple as you spilled brake fluid when you were refilling the reservoir after the light on your dashboard came on.
If you wipe the fluid off that area, does it reappear?
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Joined: Dec 2012
Posts: 228
Likes: 1
Car: 1990 z28
Engine: 5.0
Transmission: t-5 wc
Axle/Gears: 4th gen 3.42 posi
Re: Brake leak
replace the prop valve , the lites on because thu fluid spits out thru the leak .and sucks air in so change the valve and bleed the breaks ,that should do it
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Brake leak
Because of thread differences, 82-88, won't fit late 89 to 92 cars. I'd recommend replacing with the combination valve appropriate to your car (for example, pick one one from a drum car is you have drums brakes).
JamesC
JamesC
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