The quality of car maintenance in our city is increasing year by year. It shows that the quality awareness of maintenance companies is increasing, and the level of repairs is on the rise, which proves that strengthening the management and quality supervision of the automobile maintenance industry over the years has been very effective. However, the qualification rate for auto repair is still not high and it is far from the customer's requirements. The main problems are as follows. Braking performance does not meet the standard national standards. GB7258-87 has set clear requirements for the braking performance of maintenance vehicles. In actual tests, this substandard accounted for the majority of unqualified vehicles.

A vehicle with unsatisfactory braking performance running on the road can pose a threat to public safety at any time. Therefore, vehicles that fail to pass the braking performance test must not pass inspection and acceptance. The quality of maintenance is low. There are more than 1,000 large and small car maintenance companies in the city, and their quality and maintenance levels are uneven. Many companies have low-quality vehicle maintenance, and repairs and inspections are virtually useless.

A sample of the FeiJin SJK7220 car repaired by a car repair center was found. During the inspection, the left lower support arm was broken, and the lower support arm connecting bolt gasket was smaller than the machine hole, and the false connection was falsely connected. The lower support arm could be turned at any time. Lost, there are major accidents. Spot checks found that the steering rocker arm, the axial kingpin, and the tie rod ball head drive mechanism loosened frequently. Such problems are neither technical problems nor accidental events. They are purely administrative confusion and extremely irresponsible to users. The main reason for excessive emission of exhaust gas in exhaust emissions exceeded the standard due to unqualified clearance in engine maintenance. Excess emissions of exhaust gas can cause serious environmental pollution. In the first half of 1997 alone, those who failed to pass the supervision and inspection and repair failed to make up for 20% of the cars whose emissions were severely exceeded.

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