Scion Xa Engine Shaking
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.
Scion xa engine shaking. If it is get the trouble codes. Tire replacement realignment and rebalancing are common solutions. My scion xa is shaking when idle help please 2005 scion xa it might just be that the air filter holder is somehow knocking on a 015 012part of the engine. The most frequent causes of a vehicle shaking while driving stem from tire issues.
Scion xa shaking when idling diagnosis there are a lot of reasons why your xa may shake when idle. Tires begin to behave differently when worn or out of balance. 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. This has been mentioned on other forums and the fix is to put more pressure on the hood by raising the rubber stoppers.