Acceleration high pitch noise from motor - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

s14kings · 01-10-2009, 08:58 PM

So I have this noise coming from my motor (i think since its from the engine bay) and I have no idea what it is. It occurs when I accelerate between about 2k - 3k rpm. It's a high pitched noise when I throttle but doesn't occur when it's in neutral. Noise occurs throughout all gears, but not as much when in first. I thought at first it was pinging from low octane but I've been pumping 91 for a while and no change. It's also not a vacuum leak. Any help? Thanks.

*edit* I have a ka24de

01-10-2009, 08:58 PM	#1
s14kings Leaky Injector Join Date: Dec 2008 Location: socal Posts: 101 Trader Rating: (1) Feedback Score: 1 reviews	Acceleration high pitch noise from motor So I have this noise coming from my motor (i think since its from the engine bay) and I have no idea what it is. It occurs when I accelerate between about 2k - 3k rpm. It's a high pitched noise when I throttle but doesn't occur when it's in neutral. Noise occurs throughout all gears, but not as much when in first. I thought at first it was pinging from low octane but I've been pumping 91 for a while and no change. It's also not a vacuum leak. Any help? Thanks. edit I have a ka24de