Skip the auto shop - Our mechanics make house calls

Q: Car not accelerating

asked by on

My car won't accelerate. I think something is wrong with the transmission.

A: Hi there. The two most common causes of thi...

Hi there. The two most common causes of this vehicle not accelerating are either a transmission failure or a clogged catalytic converter. If the engine seems to just lack power, then it may be the converter. If the engine power is fine and it is revving high without any response from the vehicle, then it may be the transmission. If the Check Engine Light is on, then I would typically scan the computer for codes to see what the computer is seeing. I would enlist the help of a certified mechanic, like one from YourMechanic, that has the tools to determine what is causing the issue.

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・Save up to 30%

Get a quote

What others are asking

Q: Clutch issues

I have seen some flywheels that after the resurface is done and the clutch and pressure plate is installed the bolts will bottom out and not fully seat the pressure plate. This will cause the clutch to not disengage all...

Q: Doesn't shift park reverse

Hello there, thanks for writing in about your 2005 Mercedes CLK350. This is not an uncommon fault. The most likely cause would be the neutral safety switch, transmission linkage, transmission range switch, or low transmission fluid level. Since there are...

Q: 2003 Honda Civic not moving in reverse

Unfortunately there could be several reasons as to why your Honda Civic is unable to engage reverse gear when you shift the transmission into reverse. Knowing if your Civic is equipped with a manual or automatic transmission can greatly assist...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...