# 2008 Chevrolet Impala - Problems, Statistics, and Analysis

## Common problems of the 2008 Chevrolet Impala

921 problems have been reported for the 2008 Chevrolet Impala.
The following chart shows the 21 most common problems for 2008 Chevrolet Impala.
The number one most common problem is related to the vehicle's electrical system
with 180 problems.
The second most common problem is related to the vehicle's engine and engine cooling
(118 problems).

### Table 1. Common problems of the 2008 Chevrolet Impala

##
PPMY Index and Problem Occurrence Trend

In our research we use the PPMY index to compare the reliability of vehicles. PPMY index is defined as the *problems reported per thousand vehicles per Year*. The total sales of the 2008 Chevrolet Impala in the United States are 332,840 units [1]. The total number of problems reported by Chevrolet Impala owners in the last 8 years is 921, The age of the vehicle is 8, the PPMY index can then be calculated as

PPMY Index = 921 / 332,840 / 8 * 1000 = 0.35.

Also see A study of reliability comparison across Chevrolet Impala model year vehicles.

The following chart shows the problems reported during each of the service
years since the debut of the 2008 Chevrolet Impala in 2008.

#### Table 2. PPMY Index and Problem Occurrence Trend

Service Year | Number of Problems |

2008 |
4 |

2009 |
57 |

2010 |
80 |

2011 |
85 |

2012 |
84 |

2013 |
188 |

2014 |
233 |

2015 |
125 |

2016 |
22 |

##
Compare the 2008 Chevrolet Impala with Other Model Years

When buying a new or used Chevrolet Impala, make sure to check out
the following table and see how the 2008 Chevrolet Impala
compare with other Chevrolet Impala model years.
We note that the number of problems reported for the 2008 Impala is 921
while the average number of problems reported for the 20 model years of Chevrolet Impala is 470.

### Table 3. Compare the 2008 Chevrolet Impala with other model years