Brake Problem! Pulls left and barely stops - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 12-07-2010, 05:48 AM Thread Starter
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Exclamation Brake Problem! Pulls left and barely stops

Okay, So I have a 1997 F250 4x4 with an auto tranny.

When applying pressure to the brake pedal, I get a decent amout of resistance in the first inch, and then it quickly sinks another 3 inches, and then I will get resistance in the pedal again and the truck will stop. I realize this isnt a sports car, but I know it is not stopping anywhere near as fast as it should.

When I first bought the truck, the brake lines were rusty, and I blew a hole in one. I went through and replaced all of my brake lines. I bleed the brakes and also jacked the car up of the ground so I could brake and have the ABS system engage to hopefully get that bleed as well. When pumping the brakes with the truck off, I build up pressure great. When its on, the pedal sinks.

On top of that, the truck pulls left pretty hard when I am stopping. The harder I hit the brakes, the harder it pulls left. I looked at the cront calipers and nothing seemed to be frozen and the pads were fine. I jacked the truck up so that the tires were spinning, put it in 4x4, gave it some speed and hit the brakes to make sure that they would all stop at the same time and nothing was frozen. It all seems normal..

Any help would be greatly appreciated! THANKS

1997 Ford F250 7.3L 4x4 Auto
Mods: 6637 Air Intake
MBRP DP & 4" Exhaust
TS Perfomance Chip
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post #2 of 2 Old 12-07-2010, 06:02 AM
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Sounds like you need a new vacuum pump, that will fix your pedal problem. If you are sure that everything is good up front as far as the pads, calipers, and rotors, then I would replace the rubber brake hose going to the caliper. Over time and brake jobs I have had them get kinked and actually close up on the inside. I have the same truck, 280,000 miles plus and still going strong! Good luck
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