Q: Engine stumbles around 3000 RPM.

asked by on

when I rev up the engine, it stops at around 3000 RPM, and stumbles, I haven't tried to hard to go past 3000, I just know it doesn't like to go any higher, the engine is new, and heads rebuilt about 4000 miles ago, fuel pump and filter is new, as are spark plugs and wires, and O2 sensors, im starting to wonder if this could be an ECU issue or something more serious.

My car has 144000 miles.
My car has a manual transmission.

Hi there. The engine could be stumbling for the coil pack or distributor may not be functioning correctly. As the coil pack or distributor gets old, the parts tend to become weak and is not able to send an electrical current to the spark plug when the engine is under a high speed and is loaded. If you need further assistance with your engine stumbling at high rpm’s, then seek out a professional, such as one from Your Mechanic, to help you.

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. Engine stumbles around 3000 RPM.

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: engine dies after warming up

There are several components that can cause this problem. You are correct in thinking one could be the ignition system. Heat from the environment or the engine will cause the coils to expand, and not allow for the connection to...

Q: What is the hose that comes out of the top of the transmission ,goes straight up, curls over and has open end

This hose is a vent hose for the transmission and would not be connected to anything. The vent is used by the transmission so it will not build up internal pressure and push oil out of any seals. If you...

Q: Car hesitating and surging while accelerating

The main cause of this car running rough is likely the distributor. Over time, the electronics in the distributer start to fail, and need to be replaced. The most common time for failure is around 150,000 miles. You should have...

Related articles

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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.