Mazda 626 Problem Report
Mazda 626 Rough Idle Due to Intake Manifold Vacuum Leak
The intake manifold gasket can fail causing vacuum a leak and/or a rough idle condition. Replacement of the leaking gasket will be necessary to correct this concern.
Surged to the point of stalling. I ended up spraying carb cleaner at the point where the intake met up to the head and found when spraying the carb lceaner at the no 1 cylinder, the engine speed noticibaly changed. The Intake gasket was replaced and the issue was resolved. - Visitor
ok so were on the intake manifold and does that causes it to hiss?
what are the most common oil leaks in this engine?
um i shook it and some shakes inside of it and egr in on top of the vaule cover right but the...
advance auto told me a vacum leak but today i check under my car all over cudin feel no air or...
The "Bypass Air Control Valve" can fail causing a low engine idle and possibly stalling.