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really awful
Crashes / Fires:
0 / 2
Injuries / Deaths:
0 / 0
Average Mileage:
63,802 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.

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2000 Chevrolet Impala Owner Comments

problem #20

Mar 012017


  • 123,000 miles


The contact owns a 2000 Chevrolet Impala. While the vehicle was stationary, the intake manifold leaked fuel and released vapors. The intake manifold was replaced two years prior by a certified mechanic, but the failure recurred. The contact stated that the intake manifold was fractured. In addition, the intake manifold exploded and caused a fire. A police report was not filed. The contact's family extinguished the fire. There were no injuries. The dealer, walter's Chevrolet, was contacted about the fire. The manufacturer was not notified. The failure mileage was approximately 123,000.

- Pikeville, KY, USA

problem #19

Dec 282015


  • 200,200 miles
The contact owns a 2000 Chevrolet Impala. While the vehicle was at an independent mechanic for repair, the battery depleted. While attempting to start the vehicle, the intake manifold exploded. The mechanic stated that the valve cover and intake manifold needed to be replaced. The vehicle was not repaired. The VIN was included in NHTSA campaign number: 04V090000 (fuel system, gasoline). The manufacturer was not notified of the failure. The failure mileage was 200,200.

- Battle Creek, MI, USA

problem #18

Sep 022009


  • 101,000 miles
- the contact owns a 2000 Chevrolet Impala. The contact stated when attempting to start the vehicle, the intake manifold exploded into pieces. The vehicle was towed to a local repair shop and is currently waiting to be inspected. She contacted the manufacturer and filed a complaint, but was advised by a representative that the statue of limitations in the state of Maine specifies that after four years they are not obligated to make repairs. The vehicle identification number was unavailable. The failure mileage was 101,000.

- Columbia Falls , ME, USA

problem #17

May 232006

Impala 6-cyl

  • Automatic transmission
  • 97,500 miles


: the contact stated the engine would not start after the vehicle was parked overnight. Initially, it was suspected the battery was discharged and the battery was charged for twenty minutes. Afterwards, the contact attempted to start the vehicle, with the key in the ignition, and the intake manifold exploded. A large fireball along with pieces of the intake manifold and the engine cover shot out of the underhood area. The vehicle was towed to a dealer for inspection. The dealer determined the backfiring occurred due to the contact starting the engine while applying the accelerator pedal. The manufacturer was alerted.

- Fremont, MI, USA

problem #16

May 022006

Impala 6-cyl

  • Automatic transmission
  • 133,000 miles
: the contact stated while driving 45mph, the engine stalled and the check engine light illuminated. The temperature gauge of the engine also elevated and the engine was turned off. The vehicle was towed to an independent repair shop for inspection. The mechanic determined the intake manifold, head gaskets, and the engine cooling system needed to be replaced. The dealer and manufacturer have been alerted and agree the vehicle is included in a customer satisfaction program, # 03034, concerning the engine and engine cooling. However, both refuse to repair the vehicle without charge because the campaign expired.

- Seminole, FL, USA

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problem #15

Dec 012004

Impala 6-cyl

  • Automatic transmission
  • miles
The contact stated the turn signal worked intermittently. This has been occurring for approximately one year. When the turn signals were not working he could press the hazard light switch and the turn signals would activate. Nothing has been done to correct the problem. During an oil change a mechanic determined that the lower intake manifold gasket was leaking. The manufacturer was contacted and offered to pay for half of the repairs. The repairs have not been made. The replaced the hazard switch warning light. Updated 01/11/06.

- Cedar Knolls, NJ, USA

problem #14

Aug 012003

Impala 6-cyl

  • Automatic transmission
  • 40,000 miles


Intake manifold gasket.

- Jenison, MI, USA

problem #13

Apr 132005

Impala 6-cyl

  • Automatic transmission
  • 21,000 miles
2000 Chevrolet Impala leaking intake manifold gasket. VIN# [xxx]. car purchased new. Currently with only 21500 miles 3.4 engine. GM has a tsb on the issue. Replacement = gasket of different material. Quote for repair at local dealership $900. ! information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- Seattle, WA, USA

problem #12

Dec 012004

Impala 6-cyl

  • Automatic transmission
  • miles
Intake manifold gasket leaking. Low coolant light came on. Repair is approx $900 at the dealer, beardmore Chevrolet. In checking for a cheaper repair price, several mechanics stated they have replaced lots of these on the Impala. Sounds like a defect. Repair is being done today, 2 Dec 04 at beardmore Chevrolet, bellevue Nebraska.

- Papillion, NE, USA

problem #11

Jul 252004

Impala 6-cyl

  • Automatic transmission
  • 58,132 miles
"plastic" by pass tube from intake manifold to water pump cracked, causing antifreeze to leak out at a rapid amount. Can't believe that the tube is made out of plastic since it is in contact with the intake manifold which is very hot. Fortunately my wife and son were just around the corner from our house and not on the trip to Ohio which was planned. Only going about 10 mph when noticed a gurgling sound. Got out of car and saw fluid leaking. Came back to house and I checked it out and found that the plastic tube above the water pump leading into the manifold was indeed the problem. Took car to Chevrolet dealership. They replaced the by pass tube at a hefty cost of $262.38.

- Roanoke, VA, USA

problem #10

Mar 262004

Impala 6-cyl

  • Manual transmission
  • 72,500 miles


Intake manifold gaskets leaking. After speaking with numerous people and a GM service member it seems very clear that there is a problem with the gaskets on the GM 3100 and 3400 engines.

- Milford, OH, USA

problem #9

Feb 112004

Impala 6-cyl

  • Automatic transmission
  • 72,000 miles
Failed manifold gaskets on 2000 3.4 engine used in most GM cars. GM is insufficiently dealing with or trying to keep from becoming a recall. Mine was the 5th 2000 Impala this week with the same problem (its only Wednesday). Expect to pay $250+ for repair. Mechanic says GM installed wrong size manifold bolts during assembly (dealer repair kit comes with correct, but different, bolts).

- Melbourne, FL, USA

problem #8

Dec 152003

Impala 6-cyl

  • Automatic transmission
  • 63,000 miles
2000 Chevrolet Impala. Premature failure of the intake manifold gasket. The leak appears in the gasket that is directly next to the stove pipe from the exhast manifold. It appears the high temperature from the the stove pipe is deteriorating the gasket in the intake manifold. This has every indication of an engineering defect due to the number of complaints on this same problem. Other similar problems were discovered in Impala with VIN type K mine is type E see tsb 03034.

- Spring, TX, USA

problem #7

Jan 192004

Impala 6-cyl

  • Automatic transmission
  • 44,000 miles
Failed manifold gaskets involving alot of cars that GM is insufficiently dealing with or trying to keep from becoming a recall on the 2000 Chevrolet Impala, 3.4 engine.

- Cherry Hill, NJ, USA

problem #6

Nov 262003

Impala 6-cyl

  • Automatic transmission
  • 93,000 miles
Leaking intake manifold gasket on a 2000 Chevy Impala with the 3.4 ltr engine costing several hundred dollars in repairs and possible engine damage.

- Alanson, MI, USA

problem #5

Oct 282003


  • 22,826 miles
The intake manifold is leaking antifreeze into the engine. The dealer repaired the seal under a safety campaign but the manifold still leaks.

- Plainville, CT, USA

problem #4

Nov 072003

Impala 6-cyl

  • Automatic transmission
  • 40,600 miles
Intake manifold gasket leaking from dex cool. Also, intake bolts were backing out.

- Shepherdsville, KY, USA

problem #3

May 042003

Impala 6-cyl

  • Automatic transmission
  • miles
Intake manifold gaskets went costing over $600 dollars to replace at local Chevy dealership, assumed this was just a slight problem but I see it happening to a lot of Impala... I know there's been a recall but not on the 3.4's something needs to be done about this since Chevy knows there is a major problem here...

- Deerfield, NY, USA

problem #2

Oct 202003


  • miles
Consumer stated took vehicle in for an oil change, and was told that there was oil around the radiator cap. Mechanic told consumer that manifold was leaking oil, and that this was an internal oil leak. Also, consumer was told that the seals had to be replaced. In addition, mechanic told consumer that GMC issued recall regarding intake manifold leak, but that this vehicle's was not included due to VIN..

- Riverview, MI, USA

problem #1

Feb 282003

Impala 6-cyl

  • Automatic transmission
  • 94,281 miles
Low coolant light on our 2000 Impala was coming on and the lower intake was found to be leaking - cost $600 to repair. Received a recall notice on our 2003 Impala for this condition. Requested reimbursement for our 2000 Impala repair and was denied.

- Reedsburg, WI, USA

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