Skip the auto shop - Our mechanics make house calls

Q: Car won't go over 35 mph

asked by on

My car just cannot run faster than 35 mph. Each time I apply the gas pedal, the engine would rev but there would be no increase in speed. I had the airflow sensor replaced as I was told at the shop that it would help, but I still have the same problem. What should I do?

Hello. We’ll be happy to help with your 1998 BMW 318i. Your power loss may be due to something like a clogged catalytic converter, a bad ignition module, or faulted spark plugs. Check the flow of the catalytic converter, inspect the condition of the spark plugs, and test ignition module both visually and with a multimeter. To have the fault verified, you could have a certified technician inspect your vehicle’s loss of power in order to make the correct repair.

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
  1. Home
  2. Questions
  3. Car won't go over 35 mph

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: Wheel alignment

Hi There, The alignment corrects the suspension geometry back to the optimum setting, but the steering wheel position at the time of the alignment is arbitrary. Unless they really take care to keep the steering wheel centered while completing the...

Q: Where is the main power relay I can’t find nothing that says it

It is called the ASD short for automatic shutdown relay. It is in main fuse box in engine compartment.

Q: Truck jerks trying to change gear around 45mph

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...