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definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
43,497 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Chevrolet Impala exhaust system problems

exhaust system problem

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2003 Chevrolet Impala Owner Comments

problem #7

Dec 152008


  • 157,000 miles


The contact owns a 2003 Chevrolet Impala. The contact stated the vehicle would intermittently overheat and leak antifreeze. When the failure would occur, the contact would move the vehicle off the roadway and shut off the engine until it cooled down. The vehicle was taken to a local repair shop where she was informed the intake and manifold gaskets would need to be replaced. The manufacturer advised there were no recalls for her specific vehicle and would not provide any assistance. The failure and current mileages were 157,000.

- Gallatin, TN, USA

problem #6

Apr 212008

Impala 6-cyl

  • Automatic transmission
  • miles
I recently found that the intake manifold gasket fails on the Chevrolet 3.8 V6 and that Chevrolet has known of the problem for years and has not corrected the problem. I travel cross country regularly in my 2003 Impala with the 3.8 engine and am concerned that the engine will fail on the highway and could cause serious accident. Before I knew that GM was aware of this problem I owned a 2000 S-10 pick up and had the gasket replaced for over $700 dollars. I now face the same expense or more to fix the Impala. I feel that GM should have recalled and fixed his problem because hey were aware of the defect in the gasket and plastic coolant part going through the valve cover.

- East Falmouth, MA, USA

problem #5

Mar 312008

Impala 6-cyl

  • Automatic transmission
  • 43,716 miles
2003 Chevy Impala -- intake manifold gasket -- told factory puts on plastic ones that do not last, causing oil leakage and possible damage to the motor if not corrected in time - did not see any recall on this issue -- why"?"

- Burlington, IA, USA

problem #4

Jul 062007

Impala 6-cyl

  • Automatic transmission
  • 45,242 miles


2003 Chevrolet Impala with 45,242 miles had to have an intake manifold gasket replaced due to it leaking antifreeze into the oil. $550.

- Ne W Holland, PA, USA

problem #3

Mar 232007

Impala 6-cyl

  • Automatic transmission
  • 58,524 miles
- the contact took the 2003 Chevrolet Impala for an oil change, while she was at the service location, the technician told her that the intake manifold was leaking. Also, the high beam switch did not working properly. The high beam switch turned on, but did not stay on. The technician stated that the two failures were common. Failure mileage was at 58,524.

- Amherst, NY, USA

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problem #2

Feb 282005

Impala 6-cyl

  • Automatic transmission
  • miles
My 2003 Chevrolet Impala makes a roaring sound when the road is wet after a rain. I took it back to the dealer, they said it was caused by water being splashed up on the converter, and it could not be fixed

- Dyersburg, TN, USA

problem #1

Nov 102003


  • miles
Consumer stated that dashboard light was flashing, indicating that there was a problem. Consumer's son in law had the vehicle checked out. It was discovered that there was a problem with the oil leaking in the radiator. Also, consumer was advised by the mechanic that there was intake manifold problem.

- Westfield, MA, USA

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