Question about 2000 Dodge Ram Maxi

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I'm replacing my brake master cylinder on a 2000 Dodge Van, 3500 5.9L. I'm having problems removing it from the power booster. Is there something I'm doing wrong or do I need to remove the booster also. Any help would be appreciated. Thanks

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The master cylinder is held to the booster with bolts.. Remove all lines connecting to the master cylinder, remove the cap, remove the bolts that hold it to the booster,, twist and turn it out while culling back,, twist and turn..

Posted on Nov 06, 2010

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My brake pedal looses pressure and bleeds off. No loss of brake fluid. Not sure if it is a vacuum problem or a master-cylinder problem. How do I trouble shoot it?

easy remove vacuum to booster and plug it now go and step on brakes and hold them down hard .if it fades away its the master cylinder .you can do the same test with car off and not touching the booster , if pedal falls its the master cylinder

Oct 27, 2014 | 2000 Dodge Grand Caravan

1 Answer

How to check brake master cylinder on 99 dodge ram

There is no way that your proportioning valve is going to affect your engine idle. However, a leaking master cylinder and the resulting damaged diaphram in the vacuum brake booster will. Remove the master cylinder and look for brake fluid in the booster assembly. If there is fluid in there, replac both the master cylinder and the booster.

May 24, 2012 | Dodge Cars & Trucks

1 Answer

Where is the brake booster located on the 93 grand voyager. I looked at the part on line but dont see it anywhere near the master cylinder

If your van has Antilock brakes it does not have a vacum booster.
I have the same van and the brake system is a bad design.
A 93 Plymouth/Dodge with antilock brake system and no vaccum booster but a pressure tank then it has a lifetime warrenty. Check with your local Chrysler/Dodge dealership. But first go online and get the tech sheet or recall notice.

Dec 20, 2011 | 1993 Plymouth Voyager

1 Answer

I'm having problems with my brakes. I have a 2000 Dodge 3500 Van 5.9L. I replaced 1 bad brake line and also the master cylinder cause i thought that was the problem at first. Then come to find out i had a...

Not likely the booster. and what you describe sounds like a M/C problem, but here is some stuff to try.

Master cylinder needs to be bench blead. No bench bleed, you may never get brakes. You just cannot push air down the lines. a kit can be bought at the parts store that has hoses that screw in where the brake lines go and loop back into and below the fluid of the reservoir. Pump till no bubbles.
FROM this point, do not allow the fluid in MC to run low, or start over.

Now go and bleed the rest of the brakes.

When you finally get it working, press the brakes hard, **** off of the seat pressing, just to be sure everything is okay. You will be pressing harder than that in an accident situation. The brakes need to work.

Anyways, I think that you still have air and resolve that and they will start working.


Nov 22, 2010 | 2000 Dodge Ram 3500

1 Answer

1992 MALLARD SPORT RV ON OSKOSH CHASSIS - Dodge 360 Front brakes come on by themselves, bleed them, problem continues sometimes in 2 blocks, sometimes in 5-100 miles. Replaced front calipers, pads and...

That sounds to me like a problem with the power brake booster unit or the master cylinder, the wrong master cylinder could be installed, and this could happen if the plunger rod from the vacuum booster unit is too long for the opening on the rear of the master cylinder, that is why any time that a master cylinder is replaced to be certain that the depth of the plunger valve in the rear of the master cylinder is the same as the original part that was removed. Also the brake booster itself could be malfunctioning and activating the brakes with just the engine vacuum.

Jun 07, 2010 | Dodge Ram Pickup 3500 Cars & Trucks

1 Answer

I am having problems getting the power brake booster installed on my 2000 dodge grand caravan. Are they any online instructions for this?

I doubt it,
You need to take the two nuts that hold the master cylinder to the booster off,pull out on the master cylinder until it clears the booster,but don't take any lines loose!
Now go inside your van and remove the knee panel below the steering column,And then a metal plate behind that comes down next,After that reove the brake light switch connected to the brake pedal,it is held in place with a push pin and hair pin clip,remove the clip and then the pin,now you can remove the push rod that was connected to the pedal,Now look at the fire wall where you took the rod out ,you will see four nuts that make a square,two on the left and two on the right,straight up and down from each other,Remove these four nuts and go back out under hood and pull the booster out towards you.

Jan 18, 2010 | 2000 Dodge Grand Caravan

1 Answer

Experienceing loss of power to brakes

1. What is the Brake Fluid Level?
2. Are you losing any Brake fluid at all? Are there any puddles or noticeable wetness on the ground or on the tires/wheels? With vehicle parked, the reservoir filled (overfilled), and engine running: pump the brakes and check on the ground and back sides (inside portions) of the wheels. Look for any brake fluid leaks.
3. Leaks from Calipers usually means a leak from the caliper piston. The rubber seals will be wet.
Leaks from Drums usually means a leak from the wheel cylinder.
4. In any case of leaks from the wheels - replace the calliper OR wheel cylinder.
For caliper leaks: change the brake pads, and clean the rotors with brake cleaner.
For drum leaks: clean the drum and brake hardware with brake cleaner, and replace the shoes.
5. If no leak is detected from the wheel area's: check under the Master Cylinder for wetness indicating a possible leak.
6. If no leak can be found: you MAY have a rear seal leak in the Master Cylinder which is pumping Brake Fluid into the Brake Booster (that large disk looking thing attached to the fire wall, attached to the Master Cylinder in front).
a. Use a large drip/catch pan under the Van in the area on the Master Cylinder.
b. Disconnect the brake lines from the Master Cylinder using a flair wrench.
c. Remove the two nuts (12 or 13mm?) attaching the Master Cylinder to the Brake Booster. If you have been using a lot of fluid, and have found no leaks, here is a good possibilty that all that brake fluid has collected in the Booster; so when you detach the Master Cylinder from the Brake Booster, all that fluid will come rushing out!
7. If there is Brake Fluid inside the Brake Booster: there is no cleaning that out. Brake Fluid is very caustic to the seals inside the Booster and should be replaced.
8. Of course the Master Cylinder will also have to be replaced.
9. After replacing the Master Cylinder/Brake Booster - make sure you get all that spilled brake fluid off the engine compartment area parts! I use a brake cleaner, then mild soap and then water to rinse. Clean any Brake Fluid off Paint imediatley as it will quickly dissolves finishes and paint.
10. If no leak is detected and the Booster is clear, there may be problems with the Booster One-Way Valve. This is attached to the outside of the Booster and has a hose from an "advance" connected to it. This maybe malfunctioning where you are losing power. Replace this first before deciding to replace the whole booster (in cases of NON-LEAKS ONLY). If that did not work, there may be inner seals inside the Booster that have failed. That means a new Booster.
11. In any of the above cases: Make sure you bleed the Master Cylinder correctly and bleed the brakes (at each affected wheel) correctly. Any air in the brake lines will decrease your braking proficiency or could result in brake failure.

Let me know if this helped or if you have any additional information or questions. Feel free to contact me at!

Dec 10, 2009 | 1999 Dodge Caravan

1 Answer

Leaking brake fluid

Power boosters don't have fluid in them. This sounds more like your master cylinder is leaking out the back were it joins the booster. Replace the master cylinder, and while you have it off, remove all the excess fluid out of the booster that you can using only towels.

Aug 25, 2009 | 2008 Dodge Ram Pickup 1500

1 Answer

Need to replace a brake booster on a 1998 chevy cavalier

get ready for some need to remove the master cylinder nuts that hold master cylinder to brake booster.once you remove nuts you have 2 choices remove master cylinder to remove booster. to keep from bending brake lines.or you can leave master cylinder in pull it toward you easily careful dont bend lines .disconnect vacuum line at booster .go inside vechicle to floor on driver side loosen four nuts on floor to booster .disconnect power brake push rod from brake pedal .dont force pushrod to the sides when disconnecting it.remove four booster nuts then remove booster.when in stalling the new booster loosely install four nuts then connect the push rod to the brake pedal .install new clip tighten the booster unit .if you decide to remove master cylinder use inline wrenches on master cylinder to remove lines.also plug the master cylinder brake line holes to keep from losing all brake fluid.

Apr 26, 2009 | 1998 Chevrolet Cavalier

2 Answers

Need Break Booster Replaced

The brake booster/ naster cylinder is located on the firewall on the drivers side of the vehicle. The master cylinder has a resivour (sp) which has a cap and holds brake fluid. The brake booster is right behind that, the master cylinder is bolted right to the booster. The booster looks like a big circle about 10 to 12 inches round and usually 4 to 6 inches thick. It will have a vaccum hose coming off the booster and going to the intake manifold. The master cylinder with have hard lines coming off it which are brake lines. Hope this helps.

Mar 25, 2009 | 1992 Dodge Grand Caravan

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