Check engine soon light and check gas cap light turn on?

2002 FORD ESCORT
150,000 MILES • 1.9L
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CHRISTENBERRYBILL
  • MEMBER
  • 1 POST
Check engine soon light and check gas cap light come on when I press the brake pedal.
Mar 30, 2021 at 2:01 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,112 POSTS
The check engine light will come on if the gas cap is bad or not on correctly. To be sure lets run the codes this guide can help:

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

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Apr 1, 2021 at 5:43 AM
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