ian kam

here we go at idle i often hear what sounds like a exhuast leak from the drivers side. This comes on for about 3 seconds and goes away and returns in about 3 seconds. Any ideas would a exhuast leak not be constant and not intermitent?

smkn951

turbo?
exhaust leading to turbo might be loose.
or gasket broken and or missing

Danno

Does your RPMs change in sync with the exhaust leak sound? Could be the idle-stabilizer. All the hoses under the intake-manifold are suspect with age. The hose-clamps are cheap non-adjustable clamp-on units. With age, the hoses shrink and harden and no longer seals. If you can spin a hose on the idle-stabilizer or the vacuum venturi-Y, then replace that hose and use some real hose-clamps.