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Shut off while driving, security light and reduce engine power lights are on

Tiny
JDAVIS112
  • MEMBER
  • 2007 CHEVROLET IMPALA
  • 3.6L
  • 6 CYL
  • 2WD
  • MANUAL
  • 169,000 MILES
My security light is stuck on along with the reduce engine power light. I bought the car, it ran fine. I turned it off and when I went to restart the car those lights came on and the car shut off on me on a main road. I was able to finally get it home after someone pushed me from behind but I had no power and barely got it home. I'm a disabled, single mom. I feel like I've been scammed. AutoZone can't pull any codes. I'm at a lost. Please help.
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Tuesday, September 21st, 2021 AT 10:22 PM

3 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The vehicle can go to the low power mode when it there is an issue with the engine management system.
The most common reason for a lower power mode to be triggered is a dirty throttle actuator.
Inspect the actuator and clean if necessary. Typically cleaning it out will fix the issue.

https://www.2carpros.com/articles/reduced-power-limp-mode

You mentioned that AutoZone cannot pull any codes. However is your check engine light on?

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is a guide of how to clean the actuator:

https://www.2carpros.com/articles/throttle-actuator-service

I have attached diagrams for your reference.

Please let me know of any questions.
Thank you.
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Tuesday, September 21st, 2021 AT 10:48 PM
Tiny
JDAVIS112
  • MEMBER
  • 3 POSTS
The butterfly part seems to have a crack in it. Does it need a new one? Or will this one still work?
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Wednesday, September 22nd, 2021 AT 5:57 AM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
It is a good chance that is the issue. Can you upload picture?
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Wednesday, September 22nd, 2021 AT 8:10 AM

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