Skip the auto shop - Our mechanics make house calls

Q: The car cannot go faster than 3 mph

asked by on

My car doesn't accelerate. I tried to give it more gas and keep the foot on the gas pedal all the way to the floor, but it just cannot increase speed over 3 mph. What could be the problem? I appreciate your help.

This could be several different causes. The fuel pump pressure may not be enough. The catalytic convertors may be clogged, the fuel filter may be clogged, or there could be computer sensor issues or throttle problems. Any of these can cause the problem. I recommend having a diagnostic inspection of your acceleration issue by a certified technician. They will be able to pinpoint the fault and recommend an appropriate repair.

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: Gear shift slips over to Manual Transmission without touching. I have to hold it to keep it in Automatic.

Hi there. All automatic transmissions require transmission fluid for them to work. In your engine compartment by the right side next to the radiator area, there is a box in front of the air filter housing. Remove that box and...

Q: Only drives in reverse

Hello. From what you describe it sounds like your vehicle has experienced some sort of serious mechanical failure. The noises you describe, along with the broken bolt, do sound like they could possibly be associated with a broken axle. In...

Q: Transmission went

It would be difficult to say whether or not anyone did anything to cause your transmission to fail, without anything to base a conclusion on either way. It could just be a matter of coincidence. The transmission may have failed...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.