Q: car not accelerating properly, only gets half way to the speed

asked by on June 15, 2016

My Buick has 83K miles on it. When I accelerate the car it doesn't go up to a normal speed. It only goes half the speed. What could be wrong?

Many different things can cause the car to lack power. Most of these will be seen with a Check Engine Light to indicate there is a fault. The most common issues involved in this scenario are problems with the fuel filter, alternator, fuel pump, or a misfire condition. A qualified technician, such as one from YourMechanic, will be able to diagnose your acceleration issue and perform any repairs required.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

Charging system failure.

This may suggest a failing voltage regulator. The voltage regulator is a unit that regulates the charging of the battery by the alternator. When the voltage regulator is not working properly, this may result in the alternator allowing too much...

Car had jet engine and loud fan noises

Hi there. From what you are relating, this doesn't sound like an out of the ordinary diagnosis or list of recommended work. In addition, a faulty fan clutch can make the loud, "jet engine" noise that you describe. You may...

Check Engine Light. Trouble code P0141 appears but all sensors are new. Engine still stalls.

Hello. Depending on why the Check Engine Light is still coming on would determine if it is safe to drive it. If you are getting codes related to the oxygen sensors and the catalytic converter then you may have the...

Related articles

How a Clutch Engages and Disengages
In In your car transmission, the clutch is a device that works to engage and disengage the moving parts of your drive shaft. For purposes of this discussion, we’ll focus on manual transmissions. The moving parts are the transmission input...
Top 10 Ways to Extend the Life of Your Car
Every driver wants a car that lasts a long time. Make your car last longer by checking your motor oil, parking in the shade, and keeping it clean.
Does Running My AC in the Summer Keep My Engine Cooler?
When When you engage your air conditioning in your car, it is usually summertime and hot outside. Air conditioning serves to remove heat from the inside of your vehicle by circulating a refrigerant through the evaporator core in your dashboard,...