**This problem may be covered under warranty. Ask your Chevrolet dealer.
Chevrolet Impala exhaust system problems

exhaust system problem

7.3

pretty bad

Typical Repair Cost:

no data

Average Mileage:

52,667 miles

Number of complaints:

3 complaints

Most common solutions:

  1. dealer replaced the catalytic converter (1 reports)
  2. dealer replaced the converter. (1 reports)
  3. not sure (1 reports)

Helpful Websites About 2002 Chevrolet Impala catalytic converter plugged (accelerates poorly)

A D V E R T I S E M E N T S

problem #3

2007May 25

(reported on)

Impala 3.4L V6

  • Automatic transmission
  • 59,000 miles

I called the dealer and told them my diagnosis. I dropped the car off immediately. It was fixed 5 hours later. The cost was $0.00.

This was great compared to some of my prior experiences.

Joe K.

Mountainside, NJ, USA

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problem #2

2005Jun 15

Impala 3.2L

  • Automatic transmission
  • 42,000 miles

Had to replace the catalytic converter because it broke down...just like everything else on the Impala.

Annette M.

Los Angeles, CA, USA

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problem #1

2006Nov 16

(reported on)

Impala LS V6

  • Automatic transmission
  • 57,000 miles

All the sudden, on the way home from a long weekend, the car began to struggle when I would accelerate. Once the car got going, everything appeared to fine, but the car continued to struggle every time I would accelerate from a stop. I took the car to the dealer, and they said it is a common problem with the Impala-a design flaw in the converter-and that he had replaced at least 6 catalytic converters in the last three months because they were becoming clogged. It was such a common problem, that the dealer even stocks the converters now! The dealer took care of the problem, so I didn't pay for it, but it's just one more thing in the long line of things that have gone wrong with this car since I have owned it (fuel pump went bad, brakes have never worked right, the BCM, or computer, has been replaced TWICE, etc, etc...).

Tim E.

Ottawa, OH, USA

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