277 problems have been reported for the 2002 Chevrolet Silverado 2500. The following chart shows the 18 most common problems for 2002 Chevrolet Silverado 2500. The number one most common problem is related to the vehicle's service brakes, hydraulic with 165 problems. The second most common problem is related to the vehicle's engine and engine cooling (42 problems).
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2002 Chevrolet Silverado 2500 in the United States are 177,471 units [1]. If the total number of problems reported by Chevrolet Silverado 2500 owners in the last 23 years is 277, and the age of the vehicle is 23, the PPMY index can then be calculated as
PPMY Index = 277 / 177,471 / 23 * 1000 = 0.07.
For more information, refer to this page: A study of reliability comparison across Chevrolet Silverado 2500 model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2002 Chevrolet Silverado 2500 in 2002.
| Service Year | Number of Problems |
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| 2002 |
When making the decision between buying a new or used Chevrolet Silverado 2500, the following table can be used to compare the 2002 Chevrolet Silverado 2500 with the Chevrolet Silverado 2500 from other model years. Note that the number of problems reported for the 2002 Silverado 2500 is 277 while the average number of problems reported for the 30 model years of the Chevrolet Silverado 2500 is 123.