Good Morning,

I performed a Brake Pad service to my 2019 F-150 yesterday. Unfortunately, I messed up and forgot to put the truck in "Brake Maintenance Mode". As a result, the piston actuated and the assembly came apart which caused a bunch of fluid to spill out. After some research, I purchased a new Caliper & Piston assembly (driver side, rear) and completed the rest of the job without issues.

My question is, do I need to bleed all 4 corners, OR just the 2 rear (same hydraulic circuit), OR just the single caliper that I replaced? I lost more fluid than I put back in, so something doesn't seem right. The brakes seem to be functioning fine though.

Thanks for any help and guidance.
-Mike

 

Do all 4 and your good for a few more years without worries.

 

Invest in a Motive bleeder, takes the guesswork out and will last a lifetime. Total game changer for not a lot of money.

 

Motive bleeder is the way to go. If you have EPB you need to actuate the parking brake several times during bleeding each side to make sure all the internals are completely flushed.