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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Idle sensor on a Chevy 07 Trailblazer

Customer Question

idle sensor on a Chevy 07 Trailblazer
Submitted: 1 year ago.
Category: Chevy
Expert:  Gary replied 1 year ago.

what is the problem you are having ?

what size engine is in this vehicle ?

Customer: replied 1 year ago.
The needle on the on the dash is jumping up and Down when I come to a stop. I think the engine 6
Expert:  Gary replied 1 year ago.

at a stop when its doing this what is it jumping form and too ?

do you hear the engine going u;p and down with RPM'S also ?

Customer: replied 1 year ago.
in the engine lights on the dash
Expert:  Gary replied 1 year ago.

any idea what code numbers are set ?

Customer: replied 1 year ago.
No sir
Expert:  Gary replied 1 year ago.

when the needle is going up and down is the engines RPM'S going up and down also ?

Customer: replied 1 year ago.
Expert:  Gary replied 1 year ago.

the idle going up and down can be caused by many things

are you near a Pep Boys or Auto Zone as they will scan the code for free for you and tell you the code number

once we know what codes are set we will have a better idea of what direction to take next or a better idea on the problem knowing the codes set

Customer: replied 1 year ago.
OK thanks
Expert:  Gary replied 1 year ago.

let me know what the code numbers are

Customer: replied 1 year ago.
OK will get it tomorrow. Get back with you
Expert:  Gary replied 1 year ago.

sounds good

Expert:  Gary replied 1 year ago.

how are you making out ?

you can always get me back through this post for FREE with any follow up with this question even after you rate us here as i do not get credit for my work until you rate us here at Justanswer