Q: Car shakes when stopped; hesitates when accelerating - 1998 BMW 332is

asked by on

When my car is stopped, it shakes. Also, the car hesitates when I accelerate and I have to floor the accelerator pedal in order to speed up. When I was performing a tuneup on the spark plugs, there was some oil around the thread and there was a dark/burnt look on the tips. So I replaced the spark plugs, gasket, valve cover gasket, and seal. The shaking is slightly better, but not much, so all of that actually did not solve the problem. What is your advice for what will fix the shaking and hesitation problems?

You don’t mention the Check Engine Light being on, but if so, check trouble codes before any other diagnostic activity - usually saves time! Good call on your initial repair - oil in the spark plug well can short the spark plug, causing a "miss" from that cylinder. It’s possible you have a bad ignition coil (or more), or some other problem like a blown head gasket causing one or more cylinders to misfire. A professional mechanic, like a certified technician from YourMechanic, can check for good spark, good compression, and proper fuel injection on each cylinder to isolate the problem and make repairs.

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 shakes when stopped; hesitates when accelerating - 1998 BMW 332is

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: Found misfire on all cylinders by code reader. I checked vacuum and it was low at 14 hg. I checked compression 160 to 180 except no. 3 cylinder 180 to 270.

Hi and thanks for contacting Your Mechanic. When it comes to a misfire, first check for spark and make sure that the spark plugs are functioning correctly. Then check the fuel injectors and make sure that they are not plugged...

Q: Car won't accelerate past a certain speed

You may be having a problem with the A pilar; the sunroof drain could be leaking water into some electrical connections in the driver's side kick panel. The connections for the throttle position pedal sensor are there, which may have...

Q: Broken intake gasket

Intake gasket replacement is an involved job, but it's not such a huge task that it's worth junking the car over. It calls for 4.6 hours of labor. If the car is otherwise in good shape, I would suggest having...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...