What Causes Engine Shutdown and Shaking?

2 Answers
McElena
07/25/25 10:01am
The reasons for engine shutdown and shaking are as follows: 1. Dirty Throttle: A dirty throttle can cause the throttle to not close properly or the idle stepper motor to stick, leading to high engine idle speed. Carbon deposits formed during engine operation may also contribute to vehicle shaking. 2. Fuel Line Issues: Most commonly caused by fuel line blockage, resulting in poor fuel supply. Symptoms include engine shaking, unstable idle, and stalling while driving. 3. Fuel Pump Failure: A faulty fuel pump may also cause engine shaking. To diagnose fuel pump issues, disconnect the fuel line and check the related flow rate and volume.
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LaMalia
08/11/25 7:31pm
I remember back when I was driving trucks, I also encountered situations where the engine would shake like crazy when stalling. Usually, it's caused by some common issues. Too much carbon buildup can lead to poor ignition and cause shaking; clogged fuel injectors or uneven fuel spray from a blocked fuel line can also cause trouble; aging spark plugs leaking electricity or a faulty ignition coil can all result in shaking during stalling. If your car is a manual transmission, it's most noticeable when releasing the clutch at a red light. Start with the basics—check and replace the spark plugs first. Don’t forget that a clogged air filter can also mess things up, as insufficient air intake leads to poor combustion and stalling with shaking. Regularly clean the engine and change the oil to avoid costly major repairs. If the shaking persists frequently, safety first—get it checked by a professional repair shop ASAP.
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