I need to find out which brake line feeds the passenger side front wheel on the master cylinder on 2005 chevy impala. Tried tracing lines, but too tight to see in spots.

Standard is bleeding from the furthest wheel to the master cylinder. So, you first do the right rear wheel, then you do the driver side rear wheel, then move to the front passenger wheel and finally you do the front driver side.

In my experience, brake master cylinders that have two resevoirs use one, usually the smaller of the two for the rear brakes and the larger for the front brakes. I've never heard of a vehicle that brakes using one side of the vehicle or the other. If I were doing this bleeding I'd rent a power bleeder system from my nearest Autozone or your preferred auto parts dealer, and use that to help me. Have plenty of fluid on hand and try the process with the pressurized system. It always works like a charm for me.

2000 2005 Chevy Impala need break diagram lines running from master cylinder back down to the two bottom or the top run front or what

Not familiar with this model, but most cars have only one output and one return line to/from the master cylinder. The output line usually goes to a proportioner valve downstream from the master cylinder. This valve applies more pressure sooner to the rear wheels, then to the front. This prevents "fishtailing" when braking hard. If you follow the forward-most line away from the master cylinder, you'll probably encounter a block where this line feeds in and two or four lines feed out. That's the proportioner valve.

Does the car have ABS ? And does it have an equalizer block for the 4 wheels ?
It sounds like the ABS has been affected, or there is an equalizer block that is stuck on the front wheels only.
Can you open the bleeder or the rear line on the master cyl and get fluid to come out by depressing the pedal ?

Did you bench bleed the master cylinder before installing? Run lines from outputs on master cylinder back into reservoir and pump air out . Connect lines and bleed system, Start from back passenger wheel first then back drivers wheel then front passenger and last front drivers wheel.

If you don't have someone to help you you'll need to get a one man brake bleeding kit. The bleeding kit will take the place of the helper. IF you have a helper start with the rear passenger side wheel (furthest from master cylinder). Remove the wheel, have a helper sit in the vehicle and pump the brakes several times (motor off). Tell them to hold the pedal down while you open the bleeder screw. Tighten the bleeder screw before the helper releases the brake pedal to avoid sucking air back into the line. Repeat this process until the fluid flows out of the bleeder with no air. Then repeat these steps on each wheel. The order of bleeding is always furthest from the master cylinder. Rear passenger, rear driver, front passenger, and lastly front driver. After each wheel is done check the fluid level in the master cylinder and add as necessary. You don't want it to get low and **** air in from the cylinder.

Hello,
I hope this helps.







Thank You,
Roy

You possibly have air in your lines. When you bleed them you need to start at the rear passenger, then rear driver, then front passenger and then front driver. If you are certain you have no air in the line then you have a bad brake hose/brake line. Replace this and your problem should go away. If not then the culprit should be the distribution or master cylinder. I hope this helps.

Still have air inside, because you used gravity feed method.