Slight engine vibration just before changing gears.
My 92 Accord automatic (170K miles) gets this short duration vibration just before it up shifts. It’s most noticeable when gently accelerating from 1800 to 2000 rpm’s in first. I can also feel it just before the 2-3 and 3-4 up shift at around 2400 rpm’s.
It almost sounds like a valve train noise like a loose rocker arm but everything is tight. I thought it might be transmission related but everything seams to work OK.
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