|
What brand IAC did you use? ACDelco, Standard and Airtex Wells are the brands I usually use. Ive had just as many defective ACDelco parts as any other after market brand.
Two defective parts in a row is a little unlikely but I've had it happen before.
Did you smoke the intake or did you spray around with carb cleaner? When the rubber extension cracks it can be difficult to locate it with carb cleaner. If there is any doubt about that piece it is best to just replace it. I replace it any time i need to move an intake or water pump housing, thats just how common they are.
As far as other vacuum leaks. The three most common that i see next to the rubber plenum are the Intake Gaskets, EGR tubes, Secondary AIR components (diaphragms, vacuum lines). And also specific to the Seville the Intake resonator, I've had a lot of them installed wrong.
Do you have a scan tool? Any codes? Any codes before you put the IAC in?
|