What is the reason for Cadillac xts's occasional idling jitter?

The reasons for the occasional idling jitter of Cadillac xts are: 1, and the engine has serious carbon deposition: if the engine has too much carbon deposition, the vehicle will have symptoms of poor engine working condition, increased fuel consumption and even difficult starting, which will cause great damage to the vehicle over time; 2. Unstable oil pressure: There are many factors that cause unstable oil pressure, such as insufficient oil, unclean oil, thinning oil, oil pipe leakage, oil pump damage or excessive wear of its parts; 3. Ignition system problem: When some components or lines of the ignition coil of the automobile arc system are open or short-circuited, the primary current is too small, the secondary voltage is too low, and the ignition advance adjustment fails, the engine will run in an unstable state, which will make its acceleration performance, power performance and fuel economy worse, and will also cause the problem of idling jitter. Cadillac xts is a large luxury car newly positioned by Cadillac. It adopts 20-inch 1 1 spoke hub, Bridgestone tire, LED headlight, spoiler installed on the trunk lid and other components to show its brand-new design style.