Q: Difficulty accelerating, car jumps while idling, burnt fuel smell

asked by on

I'm having some acceleration issue lately. When I apply the gas pedal, the car has difficulty increasing speed and it feels as though it would die out. Then I have to press it to the floor, which makes the car start tugging and then accelerate. Also, while the car is idling, it would jump up and down and then I can smell burnt fuel. This happens usually at the traffic light but sometimes even while I'm driving. While I'm applying the brake, the car would jerk forward. What is causing these issues? Thanks.

A few different things can cause all of these symptoms. The most likely would be a failing fuel pump, bad spark plugs and wires, a MAF sensor issue, vacuum leak, or a faulty oxygen sensor. A qualified technician, such as one from YourMechanic, will be able to diagnose your vehicle’s perceived loss of power and perform any repairs required.

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. Difficulty accelerating, car jumps while idling, burnt fuel smell

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: the check engine light appears and it gives us the code P0170

The P0170 trouble code does not necessarily go with your vehicle, but it indicates fuel control problems. I recommend the following: Have the fuel pressure tested to see if it is too low or high. Make sure...

Q: While pressing on brake pedal, car accelerated

Hi there, gladly you are okay after your accident. Brake failure can be a result of several different things. This can range from a failing brake booster, to air in the brake lines, to worn brake pads. Based upon the...

Q: I have a 2006 suzuki grand vitara, I just recently changed the battery because it was completely dead, and now when I out it in r

This is likely an electrical issue or defective engine sensor(s). Just as a for instance, the Manifold Absolute Pressure (MAP) sensor detects engine load and generates a signal that is proportional to the amount of vacuum in the intake manifold....

Related articles

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...
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...
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.