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surging 1997 Taurus

Posted: Sun Mar 10, 2019 5:14 pm
by bobcatv62
I have a 1997 Taurus GL wagon and sitting at a light it will die or the idle will go up to 1500 rpm. i have changed the IAC valve and checked for vacuum leaks. there are none. this is at the point can't drive car.. any ideas

Re: surging 1997 Taurus

Posted: Thu Mar 14, 2019 6:15 pm
by warment
My mom's 2003 Vulcan had a rotted pcv elbow on the top left side of the motor when facing the car. Remove yours and take a look inside if you have the same setup.

Re: surging 1997 Taurus

Posted: Thu Mar 14, 2019 11:40 pm
by Webmaster
How did you check for vacuum leaks? Have you scanned for diagnostic codes yet? You could use a scan tool to monitor live readings that may assist in diagnosing.