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Re: Isuzu W4500 Soft brakes
Posted to HD/Fleet Forum on 6/12/2009 1 Reply

Hi Dave,

There is in fact a metering valve under the dash that can cause a soft pedal condition. I have had this problem and it was caused by this valve malfunctioning. It is a little hard to see and to get to but it might be worth a check. I installed pres... Login to read more.

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