Skip the auto shop - Our mechanics make house calls

Q: When I start accelerate, feels like there's an anchor holding the car

asked by on

I have a bmw 320i and I'm feeling something is not right. the car feels very heavy when start accelerate, my foot goes until half of the pedal to get power, after 40km 50km p/h everything is fine and acceleration respond well. what can possible be?

My car has 145000 miles.
My car has an automatic transmission.

A: Hey there. Without additional detail as to ...

Hey there. Without additional detail as to the characteristics of the acceleration it may be difficult to diagnose without test driving the car. You will want to check to see if the acceleration feels more like a jerking or surging motion. If it was more of a jerking issue, the cause could be a vacuum leak. If the acceleration felt more like a surge, the problem could be caused by a bad belt.

It is also important to take note of whether the symptom is continuous or intermittent, any sounds that are being made, any smells you may observe, and whether or not the car is getting regular mileage. If you need more help, a certified technician from YourMechanic can come to your car’s location to diagnose the cause of the acceleration problem in detail.

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: My car's shifter is stuck in park.

Hi there. The shifter gets the power from the brake light switch as for a safety switch. In order to change gears, the brakes must be applied. Check the power into the brake light switch and the power out of...

Q: My truck is bucking at different speeds but it smooths out during acceleration.

Hi there. Check the contacts to the engine oil temperature sensor. See if the contacts are loose and if they are falling off. Also, check the wiring to the sensor and see if its over a spark plug wire. Its...

Q: I changed the camshaft sensor and also I changed the fuel pump, but the engine is starting some few minutes then it shuts off.

Hi there. If the engine is stalling out, then check the engine for any vacuum leaks. If there are no vacuum leaks, then check the fuel pressure on the fuel rail. If the pressure is low, it can be 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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...