Front brakes seized!

And my furthest you mean #1? Or.. (1-5?)

 

#1 feed 3 4 5.

#2 feed the rear

 

How do I do that? Here’s the vacuum bleeder that I’m working with

 

You can't with that, you need a handheld vacuum pump.

 

Yeah that’s what I figured. Well fuck me running

 

Last 2 test:

Brake booster
MC

 

Cracked line 1 and pumped breaks. No fluid coming from that port. Should I purge it with air?

 

Pretty much my reservoir is full, pumping the breaks sends fluid nowhere.

 

No, cause when you purge it the first time through caliper, you stated bubble travel through to the reservoir. You probably have bad mc

 

Is the booster directly below the reservoir? The cylinder all the lines connect to? Is there anyway to ensure that...

 

MC is connected to the brake booster. Large black cylinder that is connected to firewall.

White sticker with letter B is the booster

 

Side note: check your brake pedal inside the cab and make sure the pushrod didn't break off the brake pedal as well.

Pushrod is above the blue paint

 

Below your reservoir is the mc.

 

Push rod and interior cab is all in tact but check this. Hooked the vacuum pump to the line coming from port 1 and attached a hose to bleeder into new brake fluid. Filled the caliper and line full of fluid into bleeder. So the master cylinder is what the reservoir sits on correct?

 

What you can also do is remove the 4 nut hold the mc to booster and pry it far enough top see the booster push rod. Since you're by your self, record the push rod while you press the brake pedal from inside. Then watch the video and see if the push rod travel outward.

 

Yes silver ~1 inch cylinder under the reservoir is your master cylinder.

 

From your picture, you're just sucking fluid from the abs pump/hardline/caliper

 

With hose #1 disconnected like it is now, you can pump the pedal and fluid will squirt out the master cylinder female port.

If no fluid is coming out, you have a defective mc.

 

Yes, I was trying to fill the caliper and lines with fluid to see if that would get me somewhere. Now I’ve got the vacuum pump set up at the bleeder valve. So they way I look at it, the pedal goes to the floor that as if there is no fluid in the system/reservoir but there is. So whatever pumps/compresses the fluid to create flow to the pistons on the calipers and build pressure isn’t doing that. I’m not able to move fluid throughout the system as I should with the pedal. If I understood more what the booster and MC did I feel I could wrap my head around it. It’s basically a closed loop hydraulic system from what I grasp

 

Booster assist the braking by providing vacuum to brake system. This make pressing the pedal easier. If you ever drove an older vehicle without power brake, it's hard as af to slam on the brake: manual braking.

Master cylinder provide fluid pressure to the brake system: caliper and wheel cylinder