I4 Z17DTR squeaky flutter at very low throttle
#1
I4 Z17DTR squeaky flutter at very low throttle
I have an Opel Corsa with the I4 Z17DTR, and any time I set the revs just above idle (1000-1200 rpm) a squeaky fluttering sound - kind of like a slipping belt - comes from the engine. It goes away the instant I lift off the throttle to coast, or push the revs over 1500 rpm; mostly occurs when moving off from stationary and when I stick it in top gear for a long, high-speed cruise.
Any ideas what it might be? The fact that it happens at a specific throttle setting suggests that it'* something to do with the air intake, but I'm only guessing. There are no EML'* on the dash, and receipts say that the turbo was replaced not too long ago.
Thanks.
Any ideas what it might be? The fact that it happens at a specific throttle setting suggests that it'* something to do with the air intake, but I'm only guessing. There are no EML'* on the dash, and receipts say that the turbo was replaced not too long ago.
Thanks.
#3
It might be related to the wastegate. Does it have an exposed slide on the wastegate?
Have you tried doing the same thing with the accessory belt removed? (for a very short period of time)
Have you tried doing the same thing with the accessory belt removed? (for a very short period of time)
#4
#5
#7
I've hit mine with a decent shot of GT88... can they be actuated by hand, while the engine is off?
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