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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
68,544 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.

2002 Chevrolet Impala engine problems

engine problem

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2002 Chevrolet Impala Owner Comments

problem #11

Aug 012011


  • 100,000 miles


After starting the car blower motor wont work cruise light stays on mirror cluster don't work until 15 min then everything will work but when using the cruise it will stop working but light stays on after time gauges cut out and then come back on and all problems slowly become worse with time. Have reason to believe its the ignition switch.

- Bremerton, WA, USA

problem #10

May 202009


  • 55,000 miles
Leaking upper and lower intake manifold gaskets, car overheating and running poorly.occured at 55,000 miles and again at 110,000 mi.. gaskets replaced for $900 each time, old gaskets aere available.

- Parma, OH, USA

problem #9

Feb 022007


  • 150,000 miles
The contact owns a 2002 Chevrolet Impala. The contact was unable to start the engine after several attempts. The vehicle finally started fifteen minutes later. Suddenly, the security warning indicator illuminated on the instrument panel. The failures occurred sporadically and without warning. The vehicle was taken to an authorized dealer for diagnostic testing. The technician stated that the failure was related to the passlock sensor. The vehicle has not been repaired. The VIN was unknown. The failure mileage was 150,000 and current mileage was 170,000.

- Tiffin, OH, USA

problem #8

Feb 222005


  • 70,000 miles


The first thing is that I had to replace the head gasket two time now it is leaking again into the water reservoir then I had two replace the main control ( BCM ) and ( PCM ) by the dealership ha to replace the starter and the water pump had to re place two window motor and two window electronic switch that control each window there a lot more but this are the more importance ones it would be okay if I got this car used but I paid for a new car so I would not have this kind of breakdowns does GM stand behind there car or what !!!!!!!!

- S Houston, TX, USA

problem #7

Aug 312008


  • 60,400 miles
Valve broke off in engine causing catastrophic engine failure. 60,400 miles on engine at time. Oil reservoir was full, oil pump was operational and filter had not collapsed. Engine coolant was full.

- Massapequa Park, NY, USA

problem #6

Jul 242008


  • 95,000 miles
The contact owns a 2002 Chevrolet Impala. The contact stated that the vehicle would not start. After several attempts, the vehicle would sometimes restart and sometimes not. The failure occurs intermittently. During the most recent failure, the instrument panel lights illuminated, but the starter did not make a noise. No repairs have been made. The failure mileage was 95,000 and current mileage was 110,000.

- Machesney Park, IL, USA

problem #5

Jan 012005

Impala 6-cyl

  • Automatic transmission
  • 60,000 miles


2002 Chevy Impala 3.4L 84,000+ miles low coolant light comes on. Leaking antifreeze but not sure where. Continually having to add antifreeze to overflow to maintain level. Car smells like burning antifreeze after being driven. Numerous complaints found online at car forums with other consumers having the same trouble. Contents in radiator and overflow is thick, oily-like substance. So far, while checking oil, it is ok. Not milky or cloudy. Numerous reasons why vehicle has coolant problems. One theory is dexcool causes the sludge. Another theory is faulty intake valve & gasket. Main theory is problem originates from intake valve (gasket) and dominos.

- Sapulpa, OK, USA

problem #4

Oct 012007

Impala 6-cyl

  • Automatic transmission
  • 100,000 miles
The contact owns a 2002 Chevrolet Impala. The contact stated that the turn signal lights work sporadically and the vehicle shuts off and on intermittently. He stated that the failure was due to an electrical failure. The dealer stated that nothing could be done because the vehicle was out of warranty. The manufacturer has not been notified. The VIN and engine size were unknown. The failure mileage was 100,000 and current mileage was 102,000.

- Florissant, MO, USA

problem #3

Mar 272007

Impala 6-cyl

  • Automatic transmission
  • 20,580 miles
I have twice had to take my 2002 Chevrolet Impala to the shop (resulting in lost time from work and unnecessary repair bills) because the low engine coolant warning light comes on and stays on even though the coolant level is full. The repair shop has twice found oil in the coolant, despite having flushed the cooling system and installing a new low coolant level sensor at a cost of $165. Now I am told that this is a common problem with the intake manifold gasket on this type of vehicle and that it will cost around $900 to fix it properly. This car had only 20,580 miles on it when the problem was first attended to and now still has only 21,557 miles.

- Houston, TX, USA

problem #2

May 182006


  • miles
Only 78000 miles on my 2002 Impala when the coolant light comes on. Nearly $1000 later they told me I needed a new water pump, intake manifold gasket, belt, radiator cap, thermostat and of course an oil change. All of this because the coolant GM requires is corrosive and causes the above items to deteriorate. How long will the replacements last? not sure I want to find out.

- Snellville, GA, USA

problem #1

Nov 302004

Impala 6-cyl

  • Automatic transmission
  • 43,000 miles
My 2002 Chevrolet Impala suffered a breakdown of the antifreeze that turned into a thick brown substance. This caused the vehicle to overheat and GM did have the coolant flushed. Two weeks later the lifter began to rattle when the vehicle was first started. When I took the vehicle back to the dealer, I was told that a seal was leaking coolant into the oil. I was assurred that this was not related to the original problem and was not covered. The repairs will cost over $760. I called GM customer service and after waiting all day, the response was that the service manager was not there, but the problem could not have been caused by the first problem. The coolant turned into a thick brown gritty substance that would have been like sandpaper going through the engine and they claim that it could not have caused the seal to fail. It is obvious that General Motors refuses to stand up for obvious failure and defective equipment. They refuse to stand up for the repairs. This coolant according to GM is supposed to last at least 100,000 miles and it does hold up as they state. They should admit the problem and make the proper repairs to customers vehicles.

- Sherwood, AR, USA

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