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?
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. Car has intermittent acceleration problems - 2001 BMW 325

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: Code po1500 after new icv and maf

Hi there: When an error code is created, it is stored in the ECU until the problem is resolved and the error code is manually removed from the computer with a professional digital scanner. If the code was never reset...

Q: Car stalls at 30-40mph and then drops to 10mph - 2011 Porsche Panamera

Start with the problem code from engine: is it the camshaft position sensor, camshaft timing actuator, or something else? The symptoms you describe could certainly be caused by a failure of the camshaft timing mechanism. A YourMechanic professional can help...

Q: P0491 and P0492 Is the codes I'm getting on 2001 BMW 325i

Hi there - the P0491 and P0492 codes reflect a problem with the secondary air injection pump mechanism - not enough air flow is detected. This problem could be the pump itself (check fuses and relay), the check valve, or...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.