Question about 2004 Chevrolet TrailBlazer

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I have a 2005 trailblazer that almost dies and does die when accelerating from a stop. Ran some B.G. cleaner through and had the throttle body cleaned. It's not throwing any codes. also had the fuel pressure checked and it was fine. Can anybody help me?

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Well did you check the air in take housing. What about the airfilter is it chocked.MAke sure on these things cause it happened to me my trucks airfilter was damaged and a small piece of paper entered in the mass air flow sensor .. NO dtcs available..

Posted on Oct 02, 2010

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2005 Chevy Trailblazer idles rough will start to die


What about the Idle Control Valve I know these are a common fault on Ford's, if so you should be able to get away with taking it off and cleaning with something like carb cleaner. Maybe fuel filter needs changing is that the one you meant you changed?

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Hello: Remove the ducting going from the air cleaner to the throttle plate, clean the carbon off the throttle plate and the throttle body bore. Do not spray excess carb cleaner into the throttle body. Hold the throttle plate open with your hand and spray carb cleaner on a soft rag and clean off carbon. When finished key on engine off for 10 seconds key off for 10 seconds do this a total of three tines.

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Hello: It sounds like you have a throttle with excessive carbon build up, remove the hose (air induction) from the throttle body use a clean soft towel and carburetor cleaner and clean the throttle plate and bore of the throttle body, do not spray an excessive amount of cleaner into the throttle body. After cleaning and reassembly, make sure key is off and disconnect negative (black) battery cable for 15 seconds.

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Hello. the most common reason for this is a dirty throttle body. try cleaning the throttle body out with some throttle body cleaner

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Sounds like the throttle body is going out or just dirty. It has an electronic throttle body that controls the idle. I would remove the air tube that comes from the air cleaner from the throttle body. Prop the throttle blade open, clean it and the throttle body with carb. cleaner, rags, and a toothbrush. If this doesn't take care of it I would replace the throttle body.

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This is extremely common :)

With time your throttle body gets gummed up with oily residue from the PCV system. As this happens, the computer adapts to the restriction it causes in the throttle body.
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Take your intake hoses off the throttle bodies and clean the insides (open the throttle plates for better access) with a rag and some brake parts cleaner or throttle plate cleaner, available from your local parts store.

Reassemble and start the car, your idle problems should be gone immediately.

I

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