Skip the auto shop - Our mechanics make house calls

Q: RPM meter jumps wildly when accelerating.

asked by on

RPM meter jumps wildly when accelerating. Seems sporadic.

My car has 212000 miles.
My car has an automatic transmission.

A: Hello there. A few common faults will cause...

Hello there. A few common faults will cause your 2004 Chevrolet Aveo to have a fluttering tachometer. The most common is a misfire condition, vacuum leak, faulty tachometer itself, or a wiring harness fault. In order to have this looked at, a qualified professional from YourMechanic can come to your home or office to diagnose the rough acceleration firsthand so that this can be addressed properly.

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!

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: High RPM in drive and slowly picks up to 50 mph

Hello. From what you describe, it would appear that you have already addressed many of the possible sources of the issue. A few other things I would check are the throttle position sensor and the fuel injectors. The throttle...

Q: Car not accelerating

From the information provided about your Saturn L300 it appears that oil and coolant are indeed mixing and this is not a good thing. Usually when oil and coolant mix, this is an indication of a leaking or blown head...

Q: Jerking motion

It sounds like you may have a severe misfire. Usually a Check Engine Light will come on indicating that a diagnostic trouble code is stored. Reading the codes will allow a technician to focus on the system that is causing...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.