Q: Why is my car is real slow to accelerate?

asked by on

Why is my car real slow to accelerate? It hesitates to accelerate when I hit the gas.

My car has 156200 miles.
My car has an automatic transmission.

This may be related to a few different things, such as low fuel pressure, dirty or faulty fuel injectors or potentially a dirty or failing mass air flow sensor.

Low fuel pressure can cause the injectors to not receive the proper amount of fuel to be supplied to the cylinders. This is regulated by the fuel pressure regulator. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected into the motor.

When this fails, this can cause an imbalanced air/fuel load to be supplied to the motor which results in an over fueling or under fueling situation depending on the conditions. This can cause the hesitation or loss of power you describe. This can also cause the engine to struggle to idle for the same reason. If you would like to have this resolved, a certified professional from YourMechanic can come to your home or office to diagnose the acceleration problem.

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
  1. Home
  2. Questions
  3. Why is my car is real slow to accelerate?

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: torque hub assembly for 2011 buick lacrosse cxl

Hi there. The bolt torque to the backing plate on the front hubs are 45 foot pounds of torque. If you need further assistance with the backing plate installation, then seek out a professional, such as one from Your Mechanic,...

Q: With the air on or off my car hesitates at take off and going up any size hill and will not go over 40 in my 2002 Pontiac Bonneville

It is possible that you could have an issue with your crankshaft or camshaft position sensor. Fuel issues may also be the cause of your symptom. It is very likely that trouble codes were stored in your vehicle's powertrain control...

Q: Good Morning Armando. My name is Barbara Ann and I have a 1999 Buick Park Avenue Ultra and I( need to find the LOCATION of the "N

The mechanics that told you it is on the transmission is correct. You need to look for the shift cable where it connects to the transmission shift lever on it. The sensor is mounted below this shift lever on top...

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...
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...