Skip the auto shop - Our mechanics make house calls

Q: Starred to sputter then died, smell gas on dip stcick, had a knocking

asked by on

Smell gas in oil

A: The information provided for your Chevy Imp...

The information provided for your Chevy Impala is limited, making it challenging to assist you with your concern. Engine knocks and contaminated oil are red flags that something is potentially seriously wrong with the engine.

There are a few reasons why an engine would knock, including lack of oil pressure due to low, dirty, or contaminated oil. The engine could also be misfiring with one or more fuel injectors becoming stuck open, flooding the engine with fuel, resulting in your vehicle flooding out and dying. It is also possible the fuel pump may of stopped working entirely.

Because there appears to be a lot going on with your Impala, I would recommend enlisting the assistance of a certified mechanic to come by and diagnose your no start condition and assist you with the repairs needed to get your Impala up and running again.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Will not stay running.

Hi There, It sounds like you may have a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low...

Q: Vehicle is starting to overheat at idle.

There is a technical bulletin TSB 04-06-02-006A that covers the issue you are getting. It states that the cooling fan clutch will disengage at lower rpm's of the engine and will allow the engine to overheat. You should replace the...

Q: I want it to be louder

If louder is your thing, you should talk to someone at a local exhaust shop. I bet they'll have some aftermarket exhaust options for you. Just keep in mind, you may be meeting more of your local law enforcement folks,...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.