2004 Chevy Trailblazer Trailblazer bucks at 50 MPH to 60 wh

2004 CHEVROLET TRAILBLAZER
175,000 MILES • 6 CYL • 4WD • AUTOMATIC
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ROCK09
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When driving my 2004 Trailblazer the car sputters and hestitates when accelerating beyong 50 MPH to 60 MPH then smoothes out.
Dec 14, 2009 at 12:24 PM
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JACOBANDNICKOLAS
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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
Dec 14, 2009 at 9:19 PM
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ROCK09
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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
Dec 15, 2009 at 3:29 PM
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
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Let me know what you find, and I wish you a great Christmas and holidays too.

Joe
Dec 15, 2009 at 8:48 PM