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Engine power is reduced warning turns on

Tiny
JIYONG SARANGHAE
  • MEMBER
  • 2013 CADILLAC ATS
  • 2.0L
  • 4WD
  • AUTOMATIC
  • 107,000 MILES
My car listed above has had a bad temperature sensor for a few months, the fan constantly runs while the car is on. Recently the fan has come off and wont turn on at all for about 4 days and I got an "engine power is reduced" warning. My fan came back on and the warning was gone. Two weeks later the fan turned off again and about three days later the engine power is reduced popped up again. Every time the fan turns off for about 3-4 days I get the engine power is reduced. The dealership want to charge me $10,000 for a new engine. Could my bad temperature sensor be triggered the " engine power reduced" warning?
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Thursday, December 17th, 2020 AT 8:15 AM

9 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,244 POSTS
Hi,

OMG! They want to replace the engine? That doesn't even make sense at this point. Do me a favor, I need you to have the can-bus system scanned for diagnostic trouble codes. CAN stands for controller area network. Basically, all the modules and computers are tied together. By scanning it this way, it will indicate codes that can be related to any of the modules on the vehicle.

Here is a video showing how this is done:

https://youtu.be/InIlnsjOVFA

If the engine runs normally when the light goes off, it is likely a sensor or electrical problem and not the engine.

Let me know if you can have that done. If so, let me know the codes that are found. Also, if you have other questions, let me know.

Joe

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Thursday, December 17th, 2020 AT 9:08 PM
Tiny
SONNY LAM
  • MEMBER
  • 1 POST
Hello Joe, I have the same car too, 2013 ATS Cadillac 2.5. I am having same issue "Engine Power reduce" light came on I scanned it and it is giving me codes P06DE. How do I fix it? I Googled around it saying Engine Oil Pressure Control Circuit Stuck On. Any idea how to fix this?
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Wednesday, March 10th, 2021 AT 8:12 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,244 POSTS
The code indicates the pressure control valve is stuck on. It could be a mechanical issue or electrical. When the engine is running, is there any ticking or knocking coming from the engine? If there isn't I need you to check the connector highlighted in the attached pic.

Let me know if the oil light stays on with the engine running too, the number of miles on the engine, and if the oil has been changed on a regular basis.

Take care,
Joe
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Wednesday, March 10th, 2021 AT 5:05 PM
Tiny
ZURA NONESHVILI
  • MEMBER
  • 3 POSTS
Hello, I have the same problem, but there is no oil red light on, engine power reduced is written, nobody knows what to do. If you know how should I fix it please let me know.
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Monday, August 2nd, 2021 AT 8:58 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,244 POSTS
Hi,

Does your vehicle have the same size engine as the one listed above? I need to know that as well as to confirm it is a 2013.

Let me know.

Joe
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Monday, August 2nd, 2021 AT 7:51 PM
Tiny
ZURA NONESHVILI
  • MEMBER
  • 3 POSTS
Not, it's 2.0 Turbocharger. I left the car at workshop today and the reason was simple, turbocharger isn't working, but why? They will find out, it would be good if only sensor went wrong, hope not turbocharger.
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Tuesday, August 3rd, 2021 AT 3:40 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,244 POSTS
Hi,

Thanks for the update. If possible, could you let me know what they find? I would appreciate it.

Take care,

Joe
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Tuesday, August 3rd, 2021 AT 7:37 PM
Tiny
ZURA NONESHVILI
  • MEMBER
  • 3 POSTS
Yes, sure. I repaired my car and I am very happy, the problem was very easy and banal, 1 step - cleaning engine crankcase. 2 step - change engine oil (in spite of I have run only 2,500 miles it was black and dirty). Diagnostic was showing absolutely different problem, so not always computer can help us. Engine is working perfectly and turbocharger is working excellent. Thanks for your help. Good luck!
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Monday, August 9th, 2021 AT 10:37 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

We are always glad to help.

Roy
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Wednesday, August 11th, 2021 AT 4:33 PM

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