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2004 Chevy Trailblazer Trailblazer bucks at 50 MPH to 60 wh

Tiny
ROCK09
  • MEMBER
  • 2004 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 175,000 MILES
When driving my 2004 Trailblazer the car sputters and hestitates when accelerating beyong 50 MPH to 60 MPH then smoothes out.
Monday, December 14th, 2009 AT 12:24 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
When this happens, does the check engine light come on? Also, when was the last tune up with a fuel filter? Does it seem to do this only under a load or can you be feathering the throttle lightly at that speed and it still happen? Finally, I would like you to check the fuel pump pressure. It is easy to do. Here is a how to video and directions. You will need a fuel pressure gauge. Most parts stores will lend or rent the gauge to you.

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

Let me know what you find and the answers to my questions.

Joe
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Monday, December 14th, 2009 AT 9:19 PM
Tiny
ROCK09
  • MEMBER
  • 6 POSTS
Thank you for your prompt reply- I will get my local mechanic to check out your recommendations and let you know the outcome

Happy Holidays!
Rock09
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Tuesday, December 15th, 2009 AT 3:29 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
Let me know what you find, and I wish you a great Christmas and holidays too.

Joe
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Tuesday, December 15th, 2009 AT 8:48 PM

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