What are the solutions for idle vibration in the Mondeo 1.5T?

2 Answers
MacJordan
08/29/25 2:28am
Here are the solutions for cold idle vibration in the Mondeo 1.5T: 1. Clean the fuel system: Clean the fuel system and check if the idle speed motor has carbon deposits. If necessary, clean it. Regular maintenance is also important, so clean it frequently to prevent carbon buildup. 2. Replace the spark plugs: If the spark plugs have excessive carbon deposits, they can be removed and cleaned. If necessary, replace the spark plugs, which can also resolve the issue of cold idle vibration. 3. Replace relevant components: For idle vibration caused by unstable fuel pressure, it is necessary to identify leaks in the fuel supply system and replace the relevant components if needed.
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JamesonMarie
09/10/25 7:14am
Idle shaking is common on the Mondeo 1.5T. Having driven for so many years, I've encountered similar issues several times. Start with simple solutions: check if the spark plugs are worn out - they should be replaced after exceeding 30,000 km, and make sure to get the correct model. Next, clean the throttle body; carbon buildup can cause shaking - just spray some professional cleaner yourself, costing around 100 RMB. A clogged air filter also affects air intake - replacing it costs just tens of RMB. If the fuel injectors are dirty, clean them or try adding fuel additives. Loose or damaged engine mounts need replacement, otherwise vibrations will be more pronounced. Regular maintenance is key; it's recommended to check the idle control valve and wiring connections every six months to prevent issues. Avoid idling for too long to reduce carbon deposits. If the shaking persists after trying all these, a professional shop may need to check if the ECU is giving false readings - don't compromise driving safety.
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