Skip the auto shop - Our mechanics make house calls

Q: Reduced engine light is on...could it be the battery or because it needs oil?

asked by on

Reduced engine light came on and I noticed the truck was idled up real high and fast. It barely wanted to crank...could it be the battery or because the truck needs oil? Or could it be more serious?

My car has 300000 miles.

Hello. Thank you for writing in. There are several causes for the reduced engine power light to illuminate. Luckily because there is a light on, the computer has detected what the issue is and is trying to communicate that to you. The fastest way to get that information is by having the vehicle scanned for diagnostic troubleshooting codes. This can be done with a scan tool by a technician, or at most local automotive parts stores. Doing a general inspection of the vehicle is also a great idea. This would include checking the oil level, coolant level, having the battery tested, and having the vehicle scanned.

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
  • Home
  • Questions
  • Reduced engine light is on...could it be the battery or because it needs oil?

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: A/C fan blows, but no cold air

Hello. Unfortunately there is not a switch for the seasons on this vehicle. If it is not blowing cold then it is usually an issue with low refrigerant. The system gets low due to a leak and the compressor will...

Q: transmission shifting

If you are still getting the P0720 code after replacing the sensor then you should verify the wiring connection first to the sensor and also in between the sensor and ECM. Remove the sensor and turn the drive shaft. From...

Q: High rpms and no acceleration

This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...