I have a 2007 Ford Fusion (I4). Recently the brake pedal goes extremely soft after the anti-lock brake system engages. It can still brake, but I have to press the pedal almost to touching the floor. It will stay soft a while (at least 20 min, probably longer), but I found that if I pump them hard a few times (like while at a red light) it then returns to normal.
My mechanic can’t figure out why it doesn’t immediately return to normal after the ABS engages, and he’s not sure what to replace to fix it. I don’t have the cash right now to just go replacing lots of stuff, hoping it might work.
(He even mentioned the possibility of removing the ABS fuse to prevent the ABS from kicking in and triggering the problem. Though wouldn’t that be a step backward, safety-wise? I always heard that ABS is much more effective than pumping brakes manually…)
Does anyone have any ideas on what’s causing this and how to fix it?