What are the reasons for the increasingly slow acceleration of the Cadillac ATSL?

[VanJosephine]

Reasons for the increasingly slow acceleration of the Cadillac ATSL: 1. Poor ignition of spark plugs: Spark plugs are also a common source of faults. If the spark plugs ignite poorly, it may lead to acceleration issues. 2. Excessive carbon deposits in the engine: It is necessary to remove carbon deposits from the engine. For every 30,000 kilometers driven, carbon cleaning in the engine should be performed once. Extended information: 1. The main locations of carbon deposits include: combustion chamber, intake valves and surrounding areas, three-way catalytic converter, and lubrication system. 2. Severe consequences of carbon deposits: issues such as increased fuel consumption, difficulty starting, poor acceleration, engine shaking, and excessive exhaust emissions may occur. Spark plugs are also a common source of faults. If the spark plugs ignite poorly, it may lead to acceleration issues.