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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
85,892 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 fuel system problems

fuel system problem

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2003 Chevrolet Impala Owner Comments

problem #6

Mar 102016


  • 30 miles


Yes my engine oil is leaking and it making my car hot and I think my oil pan is full of oil every time I put oil in it it run straight out and I can't drive my car more than 20 minutes straight or it will just cut complete off and my brakes is going out they want stop on time

- Birmingham, AL, USA

problem #5

Nov 032015


  • 144,000 miles
Found a gasoline leak at the quick connect fitting where the fuel line meets the fuel rail on top rear of engine. I believe its the fuel return line. The quick connect fitting is leaking fuel down onto engine and could drip onto hot exhaust manifold causing a fire. Car was stationary when I noticed the leak. I smelled gas first then traced the smell to the leaking quick connect fitting. This may be related to the recent GM recall of valve covers leaking oil causing the fires.

- Madison, WI, USA

problem #4

Jul 022015

Impala 6-cyl

  • 140,322 miles
Engine runs hot for some reason, now its another problem that came weeks later after the engine problem which is it won't crank nomore at all it have to be a fuel problem because I smell gas when I try to crank it in I recently just replace a the fuel pump about 5 months if you guys can give me big help I will appreciated it not no help that I could of found out from a baby most likely Chevy need to contact me to fix my car because they sold/released the cars out knowing or not that the cars had a lil while of life I know cars from the 90's that's not having problems like these new cars ''help me please'' before I junk my [xxx]. information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Benton Harbor, MI, USA

problem #3

Aug 062014


  • 150,000 miles


There are 3 recalls I have found that possibly are effecting my 2003 Impala but because my specific VIN # doesn't fall under any of these GM is refusing to fix these problems. 1)the body control module needs to be reset. Apparently when it goes out the cruise control disengages.....and my cruise control light is on but won't engage. Plus my mechanic says the body control module also is what is could be causing my heater fan to not work nor my information display to work. But low and behold when the cruise control light goes off they both work 2) there is a recall stating drops of engine oil may leak on exhaust manifold with hard braking and I sometimes smell oil burning after I drive. If it was my actual engine leaking oil I would smell it all the time but I don't it's just after I drive certain places that are very congested and I brake a lot 3) there is a fuel vapor leak from the gas tank which is believed to be causing my check engine light to come on. It throws the code stating I need to possible replace the gas cap (which I have done) and only comes on after I have put gas in the car. I'm alittle concerned and applaud that just because my VIN # doesn't show these recalls but Impala are having these recalls that GM won't fix these problems.

- Black Mtn , NC, USA

problem #2

Jun 042014

Impala 6-cyl

  • miles
The steering wheel seems to becoming loose, afraid to drive vehicle car shut off while driving, had to pull over and restart car. Small fuel leak in fuel tank. Updated 4/24/2015

- Albuquerque, NM, USA

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problem #1

Mar 172010


  • 81,000 miles
Fuel system problem cant fill vehicle fuel tank pump shuts off and gas sprays out of fill tube possible fire hazard.

- Mongomery, IL, USA

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