Skip the auto shop - Our mechanics make house calls

Q: Loss of power in engine

asked by on

After my car has been sitting for a while, like overnight or at the grocery store, it has no power. I can start it, but it's slow and sluggish when first driving so I'm stepping on the accelerator more than usual and then all the sudden it zooms off, without warning. What is causing this?

The problem may lie within the fuel injection system from what you’re describing. The injectors require a proper amount of fuel pressure and they also stick on some certain year models. Depending on the year you have, it may require replacement injection system to fix it. A professional technician will be able to help you with this service.

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: Loss of power while driving.

The fuel pressure should be checked to inspect the condition of the fuel pump. If the fuel pressure is low, there may be a problem with the fuel pump or fuel filter. A weak ignition system may also cause a...

Q: Enging not reaching operating temperature and heater not getting hot

You need to have the cooling system fan clutch checked to see if it is keeping the fan running high speed even when cold. With engine idling with the engine cold you should have very low air flow from the...

Q: Won't Shift into drive

The VSS (vehicle speed sensor) buffer is located on the drivers side near the ECM. I have heard of instances where the connector between the VSS and the buffer has become disconnected. The wiring between the VSS and the buffer...

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...
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.