i have an 89 crx dx. when the car is rolling at 5mph or less and i apply the brake pedal, there is a rather loud knocking. it sounds like it is coming from the engine bay instead of the wheels. once my foot is past halfway down on the pedal, the sound disappears. its like something is loose maybe? the sound is only there when i am rolling in traffic below 5mph or so. NOTE: i just had the rotors resurfaced earlier this week and the sound seems to have started right after. i am reluctant to bring it back to the place that did the work because they apparently dont go a good job. im talking about the new distributor they just installed on my car. two days later, the rotor screw fell out (!!!) and when i put it back in, i found that the new dist was missing the plastic igniter shield. i had to go back and ask them for it.