No brake power after replacing pads and rotors on jeep?

Tobias

Member
I just replaced the pads and rotors on both sides on the front of my 1989 xj jeep cherokee. Did not replace calipers or bleed them at all. When I went to test it i got no brake pressure when the car is on, but it will pump up hard when its off. Any ideas?
I used a clamp to get the pistons back in. I did not let air into the system.
 
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