1988 Pontiac Fiero Vaccuum leak, what exactly is it?

1988 PONTIAC FIERO
130,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
MRFIEROTUNER
  • MEMBER
  • 1 POST
There is a black tube right under the intake by the throttle body, and my engine idles at 3000 RPM when it is open and stalls when it is blocked off. I believe it is a vaccuum line, but i dont remember. Anyone know what this is and where it connects to?
Feb 5, 2009 at 6:08 PM
Advertisement
Avatar
BUDDYCRAIGG
  • CERTIFIED EXPERT
  • 2,262 POSTS
it's supposed to be connected to the bottom of the throttle body, it's the line for the idle air control valve.

it actually goes into the side of the throttle body, down low. you'll want to removed the throttle body, so you can slide it onto the tube.
Feb 6, 2009 at 4:35 PM