Scion Xa Engine Shaking
If the tachometer is rock steady and the shaking seems worse in gear than out of gear that s a pretty good indication of a bad motor mount.
Scion xa engine shaking. The most frequent causes of a vehicle shaking while driving stem from tire issues. An engine misfire is the most common cause of a shaking idle and as the engine stumbles and misfires that should be seen in the tachometer as a drop in rpm. Tire replacement realignment and rebalancing are common solutions. This has been mentioned on other forums and the fix is to put more pressure on the hood by raising the rubber stoppers.
When the air conditioner is on it put more of a load on the engine causing the hood to vibrate more. Before you go trying to figure out which one is causing your xa to feel like it s on spin cycle make sure that the check engine light isn t on. When i turned the holder away from the engine and 015 012then retightened the strap that holds the filter housing properly i 015 012lose the knocking. If it is get the trouble codes.