2007 Chevrolet Impala loss of power

2007 CHEVROLET IMPALA

105,000 MILES • 3.9L • 6 CYL • FWD • AUTOMATIC

PAT2007

MEMBER
1 POST

driving down the hwy lost power and change oil lite and trac control lite came on so i am thinking transmission is in limp mode but also think it could be crank sensor

Feb 6, 2015 at 5:59 AM

HMAC300

✓ASE Certified Mechanic
48,601 POSTS

scan it first as it may be an abs problem and trans problem

Feb 6, 2015 at 7:04 AM

STRAILER

✓ASE Certified Mechanic
54,840 POSTS

Nope, the engine is going into limp mode and the reason for that is usually the throttle bore needs to be serviced. Here is a guide to help explain and I have included how to fix it in the images below.

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

Please go over tis guide as well.

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

Check out the images (below). Please let us know what happens.

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
Click here to log in and view diagram.

Jul 18, 2024 at 6:07 PM