Skip the auto shop - Our mechanics make house calls

Q: Car sounds like lawn mower when pressing the gas pedal

asked by on

When I press the gas pedal, the car sounds like I am starting a lawn mower. If I press the gas pedal for too long, the car starts to smell like a belt has fallen off.

Hello. It sounds like you have a large exhaust leak. If there is an exhaust leak, you are getting raw exhaust out of the engine, and that might be what you’re smelling. You should not operate or drive the vehicle until the noise is diagnosed, because an exhaust leak can start a fire if it makes contact with the wrong thing under the car. You are probably going to need the aid of a mechanic, since the car may have to be jacked-up to inspect the exhaust system for the source of the noise.

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: It has a slight rough idle

You may have fixed the misfire, but the rough idle may be due to clogged injectors and carbon build up on the valves. Try cleaning injectors and throttle body and intake system and see if problem improves. If you the...

Q: Tips to up keep car that's used all day everyday

If you use your vehicle more than the normal 15,000 miles per year then you will need to adjust your scheduled maintenance for mileage driven instead of months driving. If you car does a lot of idling or start and...

Q: Check Engine light coming on and car bucking.

A flashing check engine light is a warning that there is a misfire in the engine that will damage the catalyst in the exhaust. The catalyst is what cleans up the exhaust emissions that come out of your engine. The...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...