Aloha
Shake Only when on D & AC ON
also
Shakes when cold starting
vibration come & go repeatedly
till it warm up
?
Well, cars can shake for various reasons. Check to see if it needs a air filter, fuel filter, spark plugs. Things like that always start basic. But often if the car runs fine and the motor mounts and transmission mounts aren't broken. But it shakes and drive and when you turn the AC on, it can often be a slightly worn torque converter inside the automatic transmission and that most people will live with
Thx for responding…
Sry I didn’t put more details
Car is
2015 Asian Toyota Yaris 1.3L FWD 4speed-automatic
I guess the start up shake is from the torque converter
,
But the other thing
The vibration
Happens when for an example
On a red traffic light
Car on D(rive)
& AC is ON
& only when on D
It’s probably one of the mounts…
But which one?
& would aftermarket do? Or do i have to go OEM?
Scotty already suggested a full tune up of your engine.
If it’s indeed the mounts, choose OEM for longevity.
