Skip the auto shop - Our mechanics make house calls

Q: My car doesn't accelerate as it should for the first 2 shifts or until 100 km/h.

asked by on

First of all, my car was vibrating like crazy even if it was in park drive or neutral. I changed the spark plugs and the vibration is still there but very less frequent. When I first run the car, it vibrates and shakes between shifts for the first or second. I feel the car with less power and it has drastically increased my gas consumption. In Hills I have to press the accelerator deeper for the car to go up.

My car has 65000 km My car has an automatic transmission.

Hi there. Check the fuel system to the vehicle and see if the injectors need cleaned. Also, check the engine for any vacuum leaks. A vacuum leak will cause the engine to hesitate and not fire all the cylinders properly. Check the engine mounts and see if they are worn. A worn engine mount will make the vehicle have a vibration and have a loss of power. If you need further assistance with your engine vibrating, then seek out a professional, such as one from Your Mechanic, to help you.

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!
  • Home
  • Questions
  • My car doesn't accelerate as it should for the first 2 shifts or until 100 km/h.

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: Can keeping the clutch pedal pressed down while not moving have negative effects on a car?

When I come to a stop, usually I let go of the accelerator pedal and don't use the clutch. When you let go of the accelerator pedal, you can shift it into neutral. I let it sit in neutral, because...

Q: I get a misfire on cylinder 4. After the car warms up it runs fine. Could it be plugs?

As a general rule, car engines do not like cold weather and do not do operate as well in cold weather. When you start your car in the morning and turn the key to on, the coolant temperature sensor immediately...

Q: Rough idle and no power - 2004 Ford Ranger

Hi and thanks for contacting YourMechanic. Check the spark plugs and plug wires to the cylinders. Make sure that there is spark to the plugs. If there is no spark to the plugs, then check the harness to 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...
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...