Cause of spongy brakes after new front brake pad installation on 1984 Ford F250?

I recently changed the two front brake pads for the first time and followed everything correctly and was fairly simple job. The brakes were fairly worn down on my truck so I decided it was time. I did not disconnect the brake lines but I did spill some brake fluid out of the master cylinder while compressing the dual pistons on one of the calipers.



I've read that this problem is typical of air bubbles and will proceed with bleeding the brakes, but I don't know how they would have entered the system. Also could this problem be a result of dirty fluid? The fluid is dark brown and hasn't been changed in awhile so I'm going to flush the fluid as I bleed the brakes and see if that helps.



Also the rotors looked good with no grooves, dings but there was some minor discoloration in on one of the rotors, and I tried cleaning but did not go away. But I believe I did not have spongy brakes prior to replacing pads so I dont think the rotors are the cause.



Could there be any other cause then besides air bubbles that I should check or address? Are spongy brakes a safety issue?



Thanks!Cause of spongy brakes after new front brake pad installation on 1984 Ford F250?The spongy brakes is a result of air in the brake lines, it usually takes 2 people who know how to bleed brakes to do this. It is a safety issue with having air in the brake lines, you may not be able to stop as fast as you normally would. If you are not sure on how to bleed the brakes take it to your mechanic and for a hour worth of labor he can have the brakes bled and the truck ready to go on the road.Cause of spongy brakes after new front brake pad installation on 1984 Ford F250?Possible air in system, faulty master cylinder, or the seal in your caliper/wheel cylinder has broke causing brake fluid to leak out.Cause of spongy brakes after new front brake pad installation on 1984 Ford F250?You got air in the system.

Just bleed the system this will fix it.

Good luckCause of spongy brakes after new front brake pad installation on 1984 Ford F250?Bleed all the calipers and the master cylinder. This will remove air however it might have gotten in the lines. This should be done every few years anyway to remove condensation which can corrode the pistons and brake cylinders. Don't worry about the rotors. Clean up the brake fluid asap as it will permanently stain the paint. It's already too late- stains . stains. stains.. The color on the rotor indicates excess heat at some time or other.Cause of spongy brakes after new front brake pad installation on 1984 Ford F250?You are doing the right thing. Use ONLY genuine Ford brake fluid. Different brake fluids have different chemicals in them, and many are NOT compatible with each other. When the fluid gets dark brown, it IS time to replace it. It has absorbed all the moisture it can, safely. Also, it is possible that the brake pads you are using were not engineered to be used with your factory rotors. This can make it fell spongy. Do you have anti-lock brakes??? Probably not. Check for wear on your back brakes, as well. You might have a leak in your rear wheel cylinders (if so equipped). Good Luck!!

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