mizi

My car is Hundai Senata. within the 10 minitues after starting, engine is always shaking terribly with unstable sound so that the whole car is shaking. I don't know why. So I dare not drive in 10 minutes after starting. But, this only happens in summer. No such thing happened in the winter.

ilovemcgill

有一个火花塞坏了?? 我也是新手, 遇到过类似的问题,  仅供参考.

redlily

请问一下，你是基督徒吗？

DonCherry

One or more cylinder misfire at cold start!. Possble.

Like said, spark plugs.
or wires.
Cylinder lose pressure, meaning leak inside or valve problem.
Idle speed is too slow. etc

Go to a garage and ask them to check.