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Irrratic Idle When Applying Brakes 900

posted by  tvpierce on  Sat Jan 25 02:46 CST 2003
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last visit: Tue Apr 8 06:40 CST 2014
[RELATED]

When I'm sitting at a stop light with my foot on the brake, my idle pulses rythmicly between 400 & 1200 RPM. If I reduce pressure on the brake pedal, the pulsing is reduced to about 600 - 1000. If I put the car in neutral, and remove my foot from the brake, the idle is fine.
I'm assuming this is vacuum related... any thoughts?

Thanks in advance.

Jeff Pierce
--
'92 Mercedes 190E (my daily driver), '93 945 Turbo (a kickass family car), '53 Willys-Overland Pickup (my snow-plow truck/conversation piece)






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