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.

A: Hi there. Sometimes a vehicle will enter &q...

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

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: Won't start, security light came on - 2003 Pontiac Grand Am

It is possible that the thief system was damaged or memory cleared during the changing of the battery and alternator. You will need to try any other key you may have and if it still is inoperative then will need...

Q: Car overheating and not starting

It is possible that your head gasket may be leaking. When this happens, the pressure in the cylinders of your engine leaks into the cooling system, and causing it to overheat. Another symptom of a bad head gasket can be...

Q: Engine shakes at idle, burning smell, only in cold temperatures

Hi there. The vibration could be the engine mounts loose on your engine or transmission. The engine knocking noise could be the engine pinging as there is not enough fuel to burn and the cylinders are colder than normal. This...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
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...