Skip the auto shop - Our mechanics make house calls

Q: Car has intermittent acceleration problems - 2001 BMW 325

asked by on

My car is having intermittent problems with acceleration which usually happen from stop or slow speed to trying to pick up speed. It has a feeling like the fuel is not getting through. When I took it to the repair shop, the mechanic could not duplicate the problem and he did not get any codes. The problem is getting progressively worse. I already paid for the diagnosis but have no fix in sight. I want to avoid just replacing parts without knowing what is causing this. Could you please give me suggestions on what my first step should be in finding the cause?

There are a couple of places to start looking. The proper fuel pressure is required for good performance and a technician can check fuel pressure to see it if is low which will point to a clogged fuel filter or failing fuel pump. If the spark plugs have not been replaced on the proper schedule, this can lead to poor performance and misfires. The technician can pull out a couple of spark plugs and check them out. At the same time air filters and basic maintenance items should be looked at first before claiming a large mechanical failure. If you would like, a certified technician from YourMechanic can come to your home or office and perform an "slow acceleration inspection".

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

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 gas gauge is doing a funny little dance.

The fuel pumps are all inclusive on what they call a fuel module or assembly. These modules include a float (quite like the float on your toilet) that tells the computer and your dashboard where the fuel level is at....

Q: Security, ABS, and service engine lights on - 2002 Saturn L100

Hello. It sounds to me like you are having an electrical/computer issue with your vehicle. Usually a computer issue that does not prevent the vehicle from running is okay to drive still. Most computer issues only prevent things from working....

Q: My car wont start after reading the BMW fourms they suggested to Replace the battery for a ODM Code P2200. 2008 BMW 528i

Hello - the P2200 code you are experiencing is an indication of excessive nitric oxide levels in the exhaust on your vehicle. The P2200 code is often caused by a leaking vacuum hose, or failed sensor. However, this should not...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...