What Are the Methods to Solve Intermittent Engine Shaking?
2 Answers
To solve intermittent engine shaking, the methods are: 1. Clean the fuel system and check if the idle speed motor has carbon deposits that need cleaning; 2. Inspect the working condition of the spark plugs, high-voltage wires, and ignition coils; 3. It is recommended to go to a 4S shop to check whether the fuel supply pressure and the intake pressure sensor are normal. If the fuel pump's supply pressure is abnormal or the intake pressure sensor's value is incorrect or malfunctioning, it can cause body shaking. An engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, and electric motors.
I had the same issue with my old Jetta last time, idling felt like sitting on a massage chair. Focus on checking these four spots and you won't go wrong: First, check the spark plugs - if the gap is too wide or there's too much carbon buildup, just replace them. Don't cheap out, a pair of NGK ones on Taobao costs just tens of yuan. Second, inspect the ignition coils - pull them out and see if the rubber boots have cracks. If these are damaged, you'll get misfires. Third, clean the throttle body - buy some carburetor cleaner and spray it yourself, just remember to disconnect the battery for reset. The most overlooked part is the engine mounts - my neighbor's car shook for half a year until replacing a rubber mount fixed it. Oh, and for older cars, remember to check the vacuum hoses while you're at it - even a small hole can make the whole car act crazy.
