Q: When I press the gas the car does not accelerate but instead makes a high rev noise.

asked by on

When I attempt to press the gas the car will not accelerate but instead makes a high rev noise. The odd thing is if I stop pressing the gas, when it is revving high the RPM's drop and then I quickly press the gas again and the car jerks forward as if something that needs to be caught it catching? The only error code on the ODB is PO306-Cylinder 6 misfire. I've changed ignition coil, spark plugs and wires. What is the problem?

My car has 102000 miles.
My car has an automatic transmission.

Hello. If the car is in "Drive" and you attempt to accelerate from a standing start and yet the car does not move forward, you have a problem with the transmission (perhaps the linkages) and/or torque converter. The misfire code might be simply a coincidental issue because even if the engine is running "roughly" (i.e., misfiring) if you are in "Drive" the car will move. Your best bet is to have a certified technician, like one from YourMechanic, come to your home or office to diagnose the acceleration problem and advise you on repairs. It doesn’t sound like an "intermittent" problem at this point, so it should be fairly easy to discover what the issues are.

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. When I press the gas the car does not accelerate but instead makes a high rev noise.

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: P0300 and P0305. Pending: P0304, P0306, P0171, P0174, P2196, P2198

Hi there. The issue that maybe happening is the are fuel injectors that are not firing and there is a vacuum leak on the engine. Possible multiple sensors are not working causing the P2196 and P2198 codes to appear. For...

Q: Car is loud when accelerating

Hello. Based on your description, it does sound like this is an exhaust leak. Because exhaust pipes are made of metal, moisture will cause them to rust. Although it seems like this problem happened out of nowhere, it has actually...

Q: 2002 Jeep Liberty Limited 3.7 misfire bent spark plug tip with rough idle

I can't find any information suggesting there is a recall for your vehicle. Either way, you need to figure out what has failed in cylinder number two. Replacing all the injectors is not going to fix the problem in cylinder...

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...
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...