'09 Alitima CVT Knock on Deceleration
jgilhuly
01-21-2013, 02:32 PM
'09 2.5S Auto/CVT, 44k
Intermittent but becoming more persistent.
Upon deceleration, as engine slows, rhythmic, persistent knocking sound emerges, appearing to come from the center or center/left of engine compartment, and you can feel it very slightly. Slows a little as car decelerates but mainly stays at constant rhythm.
You can make it stop every time by tapping the brake or shifting into auto-shift, or it will stop on its own when CVT takes it into lowest gear. Seems like it taps within a certain range or gear of the CVT and goes away when that gear changes. Car doesn't jerk at all (yet), doesn't affect brakes pedal action the way a caliper/hub/bearing, etc. might.
Seeing as how I don't know anything about CVT, I don't even know if "gear" is the right word. Anyway, thanks for your time!
Intermittent but becoming more persistent.
Upon deceleration, as engine slows, rhythmic, persistent knocking sound emerges, appearing to come from the center or center/left of engine compartment, and you can feel it very slightly. Slows a little as car decelerates but mainly stays at constant rhythm.
You can make it stop every time by tapping the brake or shifting into auto-shift, or it will stop on its own when CVT takes it into lowest gear. Seems like it taps within a certain range or gear of the CVT and goes away when that gear changes. Car doesn't jerk at all (yet), doesn't affect brakes pedal action the way a caliper/hub/bearing, etc. might.
Seeing as how I don't know anything about CVT, I don't even know if "gear" is the right word. Anyway, thanks for your time!
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