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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
Just test drove a 92 gt. When it first started up the idle fluctuated radically. After it warmed up, it seemed to smooth out. Any ideas as to what that may be? Never had that issue with my 86.
It's my neighbor's car. I went with him when he got it inspected to see if I could learn more about the car. Anyway, he's saying the PVC is fairly recent.
Again, as soon as the engine warms up it seems to run better. Could it have to do with air getting warmer? What other smog devices are effected by warm air?
Its not smog related, its likely the idle air control valve. Cylinder looking thing about the size of a roll of quarters, sitting on the front of the throttle body.
06-21-2012, 03:41 PM
test drove a 92
