Odd whistle when pushing in clutch
#1
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Odd whistle when pushing in clutch
i have a 1990 toyota 4runner. when i push in my clutch to shift gears i hear a strange and slight whistle noise. 98% of the time it only happens going from gear to gear. if i put it in neutral and just push the clutch in and out it doesn't do it. it seems like air is being let out somewhere and is causing it to whistle. but only when shifting gears.
vacume leak? thats the only thing i can come up with. but i wouldn't know where to start.
any ideas?
vacume leak? thats the only thing i can come up with. but i wouldn't know where to start.
any ideas?
#3
Mass Air Flow sensor on mine (3vze) whistles when I put the clutch in to shift. It's always done that since I've owned it. It seems to be in proper working order, and I think it sounds kinda cool.
When you shift between gears, at speed, the engine tends to rev up slighty as the clutch releases the flywheel. This causes an increase in air flow through the air filter box past the MAF. I notice the same noise when I accelerate and simply depress the clutch, without shifting. And at times when downshifting suddenly, too.
When you shift between gears, at speed, the engine tends to rev up slighty as the clutch releases the flywheel. This causes an increase in air flow through the air filter box past the MAF. I notice the same noise when I accelerate and simply depress the clutch, without shifting. And at times when downshifting suddenly, too.
Last edited by MudHippy; 03-13-2007 at 01:00 PM.
#6
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Mass Air Flow sensor on mine (3vze) whistles when I put the clutch in to shift. It's always done that since I've owned it. It seems to be in proper working order, and I think it sounds kinda cool.
When you shift between gears, at speed, the engine tends to rev up slighty as the clutch releases the flywheel. This causes an increase in air flow through the air filter box past the MAF. I notice the same noise when I accelerate and simply depress the clutch, without shifting. And at times when downshifting suddenly, too.
When you shift between gears, at speed, the engine tends to rev up slighty as the clutch releases the flywheel. This causes an increase in air flow through the air filter box past the MAF. I notice the same noise when I accelerate and simply depress the clutch, without shifting. And at times when downshifting suddenly, too.
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