I put money on the master cylinder. We just went through that on the '65.
Pumped up good but gradually went to the floor. If the booster was bad, the
pedal would be hard but still hold. Something in the hydraulics is letting
air in.
On May 31, 2011 7:10 PM, "me" <chris.bulk92@gmail.com> wrote:
>
> Hi,
>
> I need some help troubleshooting an issue with my brakes. On first hit,
> they are nice and strong. If I keep pumping the brakes, the pedal
> gradually sinks farther and farther to the floor. If I let off for a 5-
> 10
> seconds, the brakes are strong again.
>
> Not an issue with fluid... could it be a vacuum leak somewhere? How
> would
> I troubleshoot this?
>
> BTW, this happened after I had help with the timing chain, but we did
> nothing to the brake syste or vacuum system. We did disconnect the fuel
> line to replace the injectors and intake manifold.
>
> The vacuum pressure is very strong (I took the cap off and the engine
> died).
>
> Could I have air in the lines, or is this the sign of something else
> failing?
>
> --
> Chris Reck
> Naperville, IL
>
> '99 Dakota Sport + CC 4x4 V6 (Deep Amethyst)
>
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