Brake Fittings

There are some brake line fittings which have a spring and ball bearing on them. I lost the ball bearing on one of these.

Does anyone know what these are called so I can get a new one? It looks "something" like this with a spring and ball bearing

I have never seen a normal fitting with a ball and a spring in it.
What you are potentially describing is a check valve
The only place in a Brake System that one of those would potentially be available to get at would be the Proportioning Valves, I think.

Did you find this fitting with stuff in it up near the front of the car.???????

Do you have an actual pic of where it is located on the car and a pic of the fitting.???

It's actually right under the passenger seat area, so yes it's near the front of the car. It threads into what seems to be a much larger than normal union (not sure if that's what it actually is).

I can't get a pic right now but while googling check valve it does look like this. I can't find anything in the parts store that looks similar.

That's what I thought might have happened.

You inadvertently opened up one of the Proportioning Valves, which are going to be a Dealer Only part.

You should not have opened that up, but what's done is done.

You will need to order one from the dealer or on-line if we can find a part number. Soooorry.

Well, I've looked in my parts list for them and could not find a P/N for them.
Your dealer will be able to look up the P/N and order one for you.
They both should be the same P/n as they both do the exact same thing and that is to restrict the amount of fluid pressure to the rear wheels so that the front brakes have more stopping power and the rears less.

If you have a Riv in any junk yard near you you can get one from any one of those. Just use some cutters and cut the brake lines on either side of the valve and take that and carefully install in your car. Take both of them from the junk car if you find a junker.

Maybe someone on here has access to a junk car and can rob these valves for you. I don't know, I'm just throwing that out there as an option.

Hello, Can Anyone Help With This Situation.?????????

I know of a junk car but it's about 45 minutes away. If t he dealer can have it for me within a few days I'll try that route. If someone can come up with one or the P/N that would be very helpful. It will probably be Tuesday before I can get one ordered.

Looks like it's called a pressure valve or residual pressure valve.

When I was trained, many many years ago, we were taught that they were called Brake Proportioning Valve's, but technology and nomenclature changes with time. The one thing that hasn't changed is the function they perform in the brake system.

EDIT: I just looked at Monster Parts and they list a "Pressure Metering Valve" as a component in the Hydraulic brake system. Unfortunately I could not get a pic or P/N from that site. Maybe one of the other GM sites will show it and list the P/N.

Rock Auto Lists a Proportioning Valve from AC Delco and has a list of other GM cars that also use the same P/N on vehicles from 97 and up.
If you need one from the Junk Yard your potential victims list just got longer. Should be easy to get a good used one from any number of GM's on the list.

It is important to get the exact same one as the Riv has because of what it does. If you get one with a different pressure rating then under heavy braking the car will spin around on you, or at least try to, due to uneven brake fluid pressure from left to right and front to back.

That wouldn't be a good thing, ass it,better get a new one, and be safe...

Thanks for all the good info Rick.

We just so happen to be going to the Covered Bridge Festival today which is relatively close to the junk yard that I know has a complete Riv or two in it. Guess I'll stop in and see if I can get them to cut both off for me.

Just talked to the yard and they said they don't mess with parts like that. If I want it I can come down and cut it off myself lol

Grabbed a pair from the JY. They let me cut them off and take them for free. If that was the correct part on Rockauto, these things are about $36



The one on my car had a stainless blue fitting, but otherwise they seem to be the same.

Good score...Freeeebieeeees.

Now, just be sure you install one in the correct direction.

There is a front and Rear orientation to them and if installed backwards, well god only knows what will happen.

The side with 2 fittings (17mm and 14mm) points towards the rear of the car just in case anyone ever needs to know.