Chevrolet Express 3500 - Problems, Statistics, and Analysis

Chevrolet Express 3500 owners have reported a total of 137 problems for their cars built in the 16 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the Chevrolet Express 3500. The 2005 Chevrolet Express 3500 cars have the most problems reported (21 problems).

  Common problems of Chevrolet Express 3500

The following chart shows the 23 most common problems for Chevrolet Express 3500 cars. The number one most common problem is related to the vehicle's service brakes, hydraulic (17 problems). The second most common problem is related to the vehicle's tires (13 problems).

Table 2. Common problems of Chevrolet Express 3500

Problem Category Number of Problems
  Service Brakes
17
  Tire
13
  Electrical System
12
  Structure
10
  Steering
10
  Other Fuel System
10
  Engine And Engine Cooling
10
  Seat Belt
9
  Gasoline Fuel System
9
  Air Bag
7
   
  Equipment
6
  Power Train
5
  Wheel
4
  Vehicle Speed Control
2
  Unknown Or Other
2
  Electronic Stability Control
2
  Visibility
2
  Diesel Fuel System
2
  Child Seat
1
  Seats
1
  Suspension
1
  Latches/locks/linkage
1
  Exterior Lighting
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Chevrolet Express 3500 of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across Express 3500 model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.

    PPMY = P / S / Y * 1000,

where P = total problems reported during the life of a Chevrolet Express 3500 model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).

The results are shown in Table 3.

Table 3. Use PPMY Index to Compare Reliability Across Express 3500 Model Years

Express 3500
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2014 127,0074    
0.01
  2012 518,9366    
0.04
  2010 512,3128    
0.05
  2009 95,9229    
0.17
  2008 1024,21710    
0.04
  2007 1026,40811    
0.03
  2006 1831,28512    
0.05
  2005 2122,77113    
0.07
  2004 1715,97714    
0.08
  2003 1217,50215    
0.05
  2002 219,55216    
0.01
  2001 1422,66717    
0.04
  2000 224,59918    
0.00


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