Tachometer not working properly

Tiny
TAMMY MCMASTERS
  • MEMBER
  • 2005 CHEVROLET TRAILBLAZER
  • 3.9L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 130,176 MILES
My rpm gauge reads almost 3,000 at speed of 70 mph and feels like it's not going into overdrive.
Friday, February 15th, 2019 AT 4:49 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,356 POSTS
Hello,

It does sound like the car is not going into overdrive. can I ask if the engine seems to have power? Can you please shoot a quick video with your phone so we can hear the noise? that would be great. You can upload it here with your response. Also, lets run the codes to see what comes up.

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

Please run down this guide and report back.

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Monday, February 18th, 2019 AT 10:21 AM

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