Why do my rpms drop when accelerating?
If your RPM fluctuates while accelerating, it could be because your spark plugs have gone bad on you. Worn-out spark plugs can cause misfires to occur within your engine, and those misfires can lead to your engine vibrating a whole lot. Those vibrations can lead to the RPM in your engine going haywire on you.
Why does my car keep dropping rpms?
This is a common sign of a dirty or failing idle air control valve. This is all controlled by the idle air control valve. When the engine RPM drops below the normal range of 750-800 RPM (for most cars), this often times will cause the engine to stall indicating a dirty or faulty idle air control valve.
What to do about vibration in Toyota Sienna?
While I got over 200,000 miles on my 2006 Limited before having to replace the passenger side axle, there is no set lifespan for these things. One test is to turn your front wheels as far to one side as possible and slowly drive the vehicle forward then backward. Repeat with the front wheels turned as far as possible in the opposite direction.
Why does my Toyota Sienna shake when accelerating?
Since purchasing back in May, we’ve got all new brake pads and 2 new rotors. Also replaced bearings in two of the wheels. Now, we’re noticing significant shaking and vibrations only when accelerating. Seems to be worse when accelerating hard.
Why does my Toyota Sienna make a humming noise?
Bad wheel bearings will make a loud humming noise, they have to be really bad before they start vibrating. Give it the ol’ bounce test to check out the struts, try to move the control arm, tie rod, ball joints with the wheels off the ground to test out the rest of the front end.
Where is the cVj joint on a Toyota Sienna?
Toyota uses a rather unique design on the passenger side axle where the intermediate joint is NOT a cvj (constant velocity joint). They use a much simpler joint design for it and the test I describe above will not work for that joint.