WHY IS CAR SURGING RPMS IN IDLE WHEN IN DRIVE BUT FULL BRAKE APPLIED?

2005 Ford Taurus

Tiny

Jwood78

October, 15, 2012 AT 3:40 PM

My mothers 2005 Ford Taurus is surging while in idle at stop signs and red lights and a few times has completely cut off. We have replaced Idle Control Sensor, plugs n wires and air filter with still no success. What else could it be?

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2 Answers

Tiny

hmac300

October, 15, 2012 AT 4:37 PM

Scan for codes, check fuel pressure and clean tthottle plate on both sides they get gummy

Tiny

Jwood78

October, 15, 2012 AT 5:33 PM

No codes come back when diagnostic is ran. I replaced idle control valve, plugs and wires and air filter but haven't cleaned throttle plate or checked fuel pressure. Thanks for the info

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