Rear Brake Calipers

[JoeM]

Are the rear brake caliper piston on a 23 Expedition screw in type or can I just compress them after putting the EPB in service mode?
Thanks

 

[Mr Big]

Are the rear brake caliper piston on a 23 Expedition screw in type or can I just compress them after putting the EPB in service mode?
Thanks

I never worked on my brakes and always paid someone to do it for me. However, I believe 2023 Expedition calipers are screw in type and require a tool to rotate the piston.

 

[JoeM]

Thanks

 

[HILLY]

IIRC, you do not have to unless needed (see service manual instructions below). Crucial step is to activate the EPB service mode.

 

[JoeM]

Thanks

 

[ROBERT BONNER]

Are the rear brake caliper piston on a 23 Expedition screw in type or can I just compress them after putting the EPB in service mode?
Thanks

I've worked on several Ford rear calipers with E-brake including my '20 Expedition. All of them retract enough using the dash computer to remove the old pads; but, not enough to install new pads. To install new pads, linear pressure (no screwing) needs to be applied to completely retract the piston, C-clamp, brake piston tool, etc. Normally the piston has to be pressed in another 1/4" or so of travel after the piston is retracted electrically.

 

[HILLY]

I've worked on several Ford rear calipers with E-brake including my '20 Expedition. All of them retract enough using the dash computer to remove the old pads; but, not enough to install new pads. To install new pads, linear pressure (no screwing) needs to be applied to completely retract the piston, C-clamp, brake piston tool, etc. Normally the piston has to be pressed in another 1/4" or so of travel after the piston is retracted electrically.

Just to amend one thing, don't use a c-clamp, as you can possibly crack/crush the EPB mechanism compressing the piston. This is noted in the picture above from the service manual as well.

 

[JoeM]

Good info
Thanks

 

[ROBERT BONNER]

Just to amend one thing, don't use a c-clamp, as you can possibly crack/crush the EPB mechanism compressing the piston. This is noted in the picture above from the service manual as well.

Just be careful. I've used C clamps with no issue. The amount of force required is very small. I'm sure some have thumbs strong enough to press them back.

 

[texsn95]

I've worked on several Ford rear calipers with E-brake including my '20 Expedition. All of them retract enough using the dash computer to remove the old pads; but, not enough to install new pads. To install new pads, linear pressure (no screwing) needs to be applied to completely retract the piston, C-clamp, brake piston tool, etc. Normally the piston has to be pressed in another 1/4" or so of travel after the piston is retracted electrically.

But the photo above says to gently rotate clockwise if piston isn't bottomed out? Kind of confusing....

 

[ROBERT BONNER]

But the photo above says to gently rotate clockwise if piston isn't bottomed out? Kind of confusing....

To be clear, my E-brake rear brake experience is confined to '19 and '20 Expedition and '21 and '22 F150 Rear brakes Other models and years may be different. The first one I worked on was my neighbor's '19 and we were very frustrated when the computer feature didn't fully retract the piston like the instructions indicated. So we were unsure how to proceed. I phoned a friend who said no problem, just press it back with your thumb, they all do that. The other 3 I've worked on were the same. I've discovered that I have less thumb strength than my friend. Note that the Expedition and F150 were unique designs that behaved the same.

 

[C Trost]

Are the rear brake caliper piston on a 23 Expedition screw in type or can I just compress them after putting the EPB in service mode?
Thanks

They are screw type unless you do the electronic parking brake maintenance mode procedure. Once in maintenance mode you can just compress them. There are numerous youtube videos on activating and deactivating parking brake maintenance mode and how to replace the pads and/or rotors.