Yes. The engine will idle poorly when a vacuum power brake booster goes bad. It can be a source of a large vacuum leak. A bad master cylinder however would have no effect on the performance of the engine.
No, the power brake booster has the vacuum line going to it.
The brake booster will have a vacuum line going to it on a non abs system.
Either the power brake booster is bad, or it don't have any vacuum going to it. That is the part that the brake master cylinder is bolted to.
Mounted between the Master Cylinder & the Firewall on the driver's side. It is the large vacuum diaphragm with the vacuum hose going to it.
The 92-96 Beretta/Corsica brake master cylinder is best removed with the ABS pumps and reservoir still attached. First, disconnect the 4 brake lines going to the top of the unit using a flare wrench. Now remove the 2 bolts securing the brake master cylinder to the brake booster. The whole assembly will come right out. Easy!
Are you saying you hear a sucking sound when you push the brake pedal? If so, you may have a vacuum leak at the brake booster mounted behind the master cylinder. Check the hose going to the booster. The booster may also have a busted diaphragm and need replacing.
you power booster could be bad or have a vacuume leak . the power booster is a large round object behind the master cylinder mounted on the fire wall on the driver side . you master cylinder bolts directly to this and you should have a vacuum hose going to this can . this is what make your brake easy to apply.
Remove brake lines going into master cylinder, properly dispose of all used brake fluid. Unbolt master clylinder from power booster. Remove pin holding break pedal (under dash on driver side) from master cylnder shaft. Install new part in reverse order of removing old part. Properly bleed master cylinder and brakes at each wheel! Ensure there are no leaks and you are done!
dont fully understand? if the brake pedal went to the floor there is a hole in the line some where or braking system If you are saying it is going straight to the floor like "whoosh" without any pressure then it is either your brake booster or master cylinder or both.
The brake pedal will sink to the floor when applied and the brake fluid reservoir remains full.
I'm going to assume you mean the brake booster and not some turbo-charger that's been installed. -Disconnect and cap all the fluid lines going to the brake master cylinder. Remove the master cylinder. -Disconnect the hose(s) connected to the brake booster assembly. -In the cab lay down in the driver's side footwell and look up behind the brake pedal. You'll see 4 gold nuts somewhere right near where the pedal touches the firewall. Remove those nuts. -Back outside, gently wiggle the booster assembly until it comes off. The gasket can be sticky. There's a spring and a center pushrod on the backside of the unit so don't let those fall down into the engine bay. -Replacement is of course reversing these steps.
The XJ6 in this vintage does not have a standard, vacuum-powered power booster for the brake system. It is an electric/hydraulic hybrid system. The unit is located on the passenger side of the engine bay in the right corner closest to the passenger. Undo the brake lines and electric plug going to it and replace. Pretty strange, actually, the booster is almost always connected to the master cylinder, as in the older version of this same vehicle.