WE HAVE A 1989 FORD TAURUS WITH A 3.O ENGINE THAT HAS A HIGH IDLE. WE HAVE REPLACE THE IDLE AIR CONTROLLER AND DONE SOME THROLLE PLATE WORK AND HAVE HELPED THE PROBLEM A LOT. WE NOW IDLE AT 900 RPM.

NOW TO THE QUESTION. THE THROTTLE PLATE WAS WORN ON ONE SID... Login to read more.