engine stumbling +special story - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

orion::S14 · 09-15-2003, 12:40 PM

I'd guess it's a vacuum leak. If the car were missing a cylinder, it would be apparent all the time. High RPM stuttering, bad driveability, etc...

If it's a vacuum leak, then it's only apparent when the throttle is closed, i.e. at idle.

Put a vacuum gauge on it...if it reads less that 20, find your leak. Also pop the hood and listen for the hissing noise.

Later - Brian

09-15-2003, 12:40 PM	#2
orion::S14 Nissanaholic! Join Date: May 2003 Location: Orange Park, FL Posts: 1,666 Trader Rating: (0) Feedback Score: 0 reviews	I'd guess it's a vacuum leak. If the car were missing a cylinder, it would be apparent all the time. High RPM stuttering, bad driveability, etc... If it's a vacuum leak, then it's only apparent when the throttle is closed, i.e. at idle. Put a vacuum gauge on it...if it reads less that 20, find your leak. Also pop the hood and listen for the hissing noise. Later - Brian