2004 Trailblazer won't rev over 3000 rpm

Posted in the Chevrolet TrailBlazer Forum

Tom

Big Rapids, MI

#1 Apr 17, 2008
Wife was driving blazer into work, had the cruise on, blazer started jerking, she stepped on the gas after turning the cruise off, very little power, she had the blazer towed home, after 5 hours of sitting, I fired it up, idles great, but still can't the tach over 3000 rpm, I took it out for a test drive, stomped on the gas, it just bogged down. Any Ideas.
Todd

United States

#2 Apr 18, 2008
have GM check the throttle body, Mine did the same thing they had to replace the throttle body on it. I was lucky it was under warr, 1400.00 to replace.
Tom

Big Rapids, MI

#3 May 23, 2008
I took the trailblazer into the shop, found out it was a plugged cat. conververter, $800.00 bucks
Jesus Molina

AOL

#4 Jun 19, 2008
I have a tb 2003 4.2 6cyl. when I start it, and drive It makes a rare sound and I feel like the trasnmission fail but it shift good but with that sound and many times it sound not appear I need help
bradc

Springfield, MA

#5 Dec 29, 2011
My 03 tb. Wont get over 4000 r's in park or drive. When driving and let off gas it slows quick.
ryan

Southington, CT

#6 Feb 10, 2012
my 03 trailblazer will not go over 3ooo rpms at all highway or side streets
chris mettler

Toledo, IL

#7 Jun 24, 2012
have a 2004 chevytrailblazerl 4.2.wont rev past 300rpm-4000rpm,cleaned throttlebody still seems truckcant breath,has no converter.

Since: Sep 14

Philadelphia, PA

#8 Sep 29, 2014
You have drive by wire (no throttle cable) If the demand sensor (gas peddle) goes bad the truck will default to "limp in mode". This is safety mode.

I'm a ASE Master Tech and a auto instructor. Only for the last 35 years..haha

I can help you as much I can, I need a transplant to live.

Take Care
bambi

Los Angeles, CA

#9 Oct 16, 2014
robb10 wrote:
You have drive by wire (no throttle cable) If the demand sensor (gas peddle) goes bad the truck will default to "limp in mode". This is safety mode.
I'm a ASE Master Tech and a auto instructor. Only for the last 35 years..haha
I can help you as much I can, I need a transplant to live.
Take Care

would it throw a check engine light on for the bad pedal sensor?

Since: Sep 14

Philadelphia, PA

#10 Oct 16, 2014
bambi wrote:
<quoted text>
would it throw a check engine light on for the bad pedal sensor?
Maybe these trucks don;t follow all the OBD II rules but there would be a code stored in the engine computer.
porchev1

Maumee, OH

#11 Jan 4, 2015
bambi wrote:
<quoted text>
would it throw a check engine light on for the bad pedal sensor?
What is the answer to this question?
dont wont no car payment

Little Elm, TX

#12 Jan 6, 2015
I have a 2004 Trailblazer that is sputtering. It feels like the gears and not changing, but they do the rpm is between 1-2 like it should. It seem to me like a fuel issue. When I start driving and try to pick up speed it putt up like it want to cut off. So I back off the gas and press it again and the putting is not as bad and then it ok as long as I am driving with out stopping. Once stop it will be ok depending on how long you stop for at a light it will start putting like it once to cut off. I usually press the gas a little bit and it stop. The Code P0410 when i took it to auto zone. I just had the cam shift replace and a relay put on the second air filter pump a week ago. Please help! Taking it back to the shop today. Trying to get a heads up on what it might be.

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