Skip the auto shop - Our mechanics make house calls

Q: The car has reduced engine power

asked by on

I bought this previously owned vehicle with a mileage of 160,000 miles. It has a manual transmission. The dashboard showed the check engine light on and reduced engine power warning. The check engine light indicated a bad throttle body sensor so I had it replaced. The engine is very sluggish still. When I shift into first, the car starts sputtering. I have difficulty increasing speed. Is the engine going out on this car? What should I do?

A: Hello there. There are many potential cause...

Hello there. There are many potential causes for reduced power output. The most likely would be the fuel pump, low fuel pressure, battery, alternator, or fuel filter. A bad throttle sensor can cause this issue but the throttle body itself can also cause the same issue. Your best bet would be to have the issue checked by a qualified professional, such as one from YourMechanic, in order to diagnose your vehicle's loss of power.

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・Save up to 30%

Get a quote

What others are asking

Q: Ticking noise coming from engine - 2006 BMW 525xi

The source of the noise must be determined first. The ticking noise may be caused by air in the lifters, this is a common complaint and BMW has a TSB out to address this concern. There is a bleeding procedure...

Q: AC not blowing cold air

Hi. It sounds as though the refrigerant needs to be recharged, you have a leak in the system or both. This could be the result of improper service when the condenser was replaced. For example, if something was installed incorrectly...

Q: Car made a loud ticking sound then everything shut off now it clicks once when i trun the key and all lights work. What happened

Hello, thank you for writing in. The black oil is definitely a problem. The dirty oil is not able to lubricate and guide the components which it is responsible for. This does not typically cause the engine to stall but...

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...
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...