Skip the auto shop - Our mechanics make house calls

Q: my car doesnt want to accelerate . the rpm stays the same it slowsly goes up to 30 not past it.

asked by on

I bought the car 2 days ago and it had a shake to it . so we decided to do a tune up thinking that the spark plugs were bad. The car had no oil or transmission oil. We put lucas stop leak in the tranny. After we where done the car didnt wana drive. It wouldnt automatically shift. We have to step and let go of the gas so it can catch speed but it doesnt go past 30mph its stalling and has multiple misfires according to the computer. They told me to change the coils or the throttle body or maybe the mass airflow. I dont have money for all that. What is it. ??

My car has 101400 miles.
My car has an automatic transmission.

Hi there. Sometimes a vehicle will enter "Limp Mode" when a problem is detected in the transmission or something is "different". Adding the stop leak in the transmission fluid may have triggered this to occur. Limp mode essentially restricts the RPM and shifting to one set gear so you can drive to the dealer for service. There is a procedure for resetting limp mode on some vehicles, but it’s a good idea to contact one of our local mechanics to inspect this issue for you.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • my car doesnt want to accelerate . the rpm stays the same it slowsly goes up to 30 not past it.

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: changed my ignition on a 2005 Yukon GMC now I can't get the car to start and stay on

You have to do the "re-learn" procedure for the ignition switch. The ignition switch/cylinder is part of the anti-theft system. When you replace a key or ignition switch/lock cylinder, you must do this procedure in order for the vehicle to...

Q: Crank no start - 2004 Nissan Altima

Hello. Let's start with the basics: is the Check Engine light on, see what problem codes are set? The codes are your friend and this will make diagnosis much easier. Do you have spark at the spark plugs while cranking?...

Q: Charging system warning light.

Hello There, What you are describing sounds like you may have a failing alternator. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine...

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 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...