Intermittent brake failure
I have been experiencing unusual brake failure in 2 vehicles, 2001 Ford F150, 2004 Dodge 1500. Both trucks have perfectly good brakes and operate as expected. Except in the following cases: 1 Wit...
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Brake pedal feels "spongy", goes all the way to the floor without much braking effect = Brake fluid is leaking past at least one cylinder, has air in it, or is boiling
Brake pedal feels firm, but requires MUCH more effort to get any braking effect = Power brake booster has an internal vacuum leak, or is no longer getting sufficient vacuum from the engine (or from the vacuum pump, if present)
Brake pedal feels firm, but requires MUCH more effort to get any braking effect = Power brake booster has an internal vacuum leak, or is no longer getting sufficient vacuum from the engine (or from the vacuum pump, if present)
