John Valerioti
Registered User
Being a new SC owner.. And a prior Chevrolet man...I'm new to some "FORD" problems...I just bought my 90 SC a few months ago. I noticed that while listening to the engine idle, it has a definite elipical idle to it. Not only can you hear it, but you can see it if you watch the tach. The RPM will "bounce" from say 1000 rpm to 9000. Almost like you were "pulsing the gas pedal. If it is night time and you have the headlights on...the dash lights and headlights will pulse or flicker to the beat of the idle. I also noticed a strange wear patern on the belt tension pulley...it has a bumpie pateren that is consistant to the pulsing idle and light flickering..I'm not sure if the pulley pattern is causing the problem or what ...it is all so very strange to a chevy man...a SC new owner....I need advice....thanks,,,John