i have been having idle problems for the last couple of weeks, and i have determined that there is a vacuum leak somewhere up under the upper intake on the driver's side. when i spray carb cleaner on that side in the area between the heads and the intake, the idle is affected, so un-metered air must be getting in from there.
if it makes a difference, i have a trick flow street heat intake. i know there are 2 hoses connected to the upper (to the the fuel pressure regulator and the pcv valve), and they both seem to be air-tight.
is there something else that is supposed to be connected to the underside of the upper intake or what else could be the source of the leak?
if it makes a difference, i have a trick flow street heat intake. i know there are 2 hoses connected to the upper (to the the fuel pressure regulator and the pcv valve), and they both seem to be air-tight.
is there something else that is supposed to be connected to the underside of the upper intake or what else could be the source of the leak?