95 F250 brake problem

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Jan 28, 2012 | 02:47 PM

warfalcone

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95 F250 brake problem

I just started noticing that my brake pedal is getting harder to push when i am at low speeds or almost stopped.It is like it looses the power booster... when i am driving it is fine but when i get to low speeds this is when i notice it.Any help with this would be appreciated thanks

Jan 28, 2012 | 03:07 PM

Phy

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From: 8600 ft in Colo

Yeah, it definitely sounds like a weak vacuum booster, although normally, a gas engine produces more vacuum when the throttle is closed than open. Is this a diesel? If so, I'd be looking at the vacuum pump.

Jan 28, 2012 | 03:09 PM

warfalcone

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Yeah it us s turbo diesel.

Jan 28, 2012 | 03:10 PM

warfalcone

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Yeah it is a turbo diesel.

Jan 28, 2012 | 03:21 PM

Phy

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Joined: Jan 2011

Posts: 1,709

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From: 8600 ft in Colo

Yeah, the vacuum pump is the most likely culprit. Another symptom of a weak vacuum pump is that the heater will go to defrost regardless of the setting. It takes vacuum to move it off of defrost, and a lack of vacuum will return it to defrost...