Q: Engine light & engine power reduced

asked by on

The engine light illuminates on the dash and then the warning "engine power reduced" comes across the dash. The car hesitates when accelerating then has almost no power followed by a burst of power and back to no power.
My car has an automatic transmission.

Hello, thank you for writing in. The vehicle’s warning light needs to be scanned so we can figure out what component may be causing the issue. Use the codes available to direct you to a probable component. If your codes are limited, or do not reveal any good diagnostic information, then you will want to look to checking the air, fuel, and spark systems. A loss of power that is sudden can be a failed sensor, a clog in the air or fuel systems, a failing ignition coil, or similar issue. You can check for spark, test fuel pressure, and examine the air intake system to help. Clean the mass airflow sensor, air filter, throttle body, change the fuel filter, and the spark plugs to improve performance. These are all general maintenance procedures that may need to be done after time anyway. For more diagnostic help, contact our service department to schedule an appointment.

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 light & engine power reduced

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, screeching noise

Hello. It sounds like the battery and/or alternator is malfunctioning and causing your vehicle to have electrical issues. If the battery is weak or the alternator is overcharging or undercharging the system, it will cause a lack of power, the...

Q: My car is having problems shifting into reverse

Manual transmissions use a reverse lockout to prevent the car from going into reverse when the car is moving forwards. Sometimes these lockouts can fail and cause the symptoms you have described. Other possible causes are the reverse synchros inside...

Q: Engine overheating replacing thermostat

Hello. Let me start off by saying that it is just as bad, if not worse, to run an engine with no thermostat as it is to run it with a bad one. It will also cause engine damage. It...

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...
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...