Engine will not accelerate?

2009 CHEVROLET CAPTIVA
140,000 MILES • 2.0L • 4 CYL • TURBO • 4WD • MANUAL
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ABAYA
  • MEMBER
  • 77 POSTS
Hi,

1) The engine starts easily but won't accelerate above 1,200 RPMs.
2) There is no pressured air in the turbo outlet.
3) There is no mil on the dash.
Please help me.
Thank you very much.
Oct 26, 2024 at 7:16 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,676 POSTS
Yep, it sounds like the car is in limp mode, most of the time this will be because of a dirty throttle body, or you have a wastegate or turbo that has come apart. These should leave some kind of code and even if the check engine light is not on, here is a guide so help you run the codes to be sure we are headed in the right direction to fix it.

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

Also, this guide can tell you more about limp mode:

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

Here is how to service the throttle body which should be done as a normal service. This guide you can use as general instructions:

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

Check out the images (below). Let us know how it goes.
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Oct 27, 2024 at 6:12 AM
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