Chevrolet Trailblazer Start Stall and Idle Problems

Last post on Jun 22, 2008 at 9:07 AM

You are in the Chevrolet TrailBlazer Forum. Your Hosts are steve_ & tidester

What is this discussion about? Chevrolet TrailBlazer, Chevrolet TrailBlazer EXT, SUV

Outline

Messages Page 1 of 1: All Messages Displayed

#1 of 1 Trailblazer rough idle problems by maizj Jun 22, 2008 (9:07 am)
I have a 2003 Chevy Trailblazer Ext. After the 100k miles it started to rough idle. First, I had the throtle body and injectors cleaned. The problem is still there. Then , I changed the spark plugs , it seems to improve but the problem is still there. I had one coil replaced from one of the spark plugs after the computer scanner indicated it and still have the probelm. When the car runs it smells like it is not making a good mix of air and gas. I had the scanner put again and gave me these codes . P 11330-H025-b1-s1 Insufficient swithcing, P1171-Fuel System Lean During Accel, P0130-02-Sensors Fant Banch 1 Sensor 1, P0135-02-Heater CHT Banch -1 Sensor-1, P0134-Low AQdiwity Bank1 Sensor Sensor 1. Defitinely it looks like Banch 1 Sensor 1 is defective . Can someone tell me is this is the oxygen sensor that needs replacement or something else that I need to change. I am almost getting ready to go into the cliff and let the car go over it..... I love this car and I will ike to fix it, best of all I just finished payinf for it and I will like to get a relief before I buy another car but it seems like Chevy makes their cars for 100k miles only..... In the other hand I have a Jap and the one has 165 k miles and is still going strong ...... Thanks for your support ....

#1 of 1: Trailblazer rough idle problems by maizj; Jun 22, 2008 (9:07 am)

I have a 2003 Chevy Trailblazer Ext. After the 100k miles it started to rough idle. First, I had the throtle body and injectors cleaned. The problem is still there. Then , I changed the spark plugs , it seems to improve but the problem is still there. I had one coil replaced from one of the spark plugs after the computer scanner indicated it and still have the probelm. When the car runs it smells like it is not making a good mix of air and gas. I had the scanner put again and gave me these codes . P 11330-H025-b1-s1 Insufficient swithcing, P1171-Fuel System Lean During Accel, P0130-02-Sensors Fant Banch 1 Sensor 1, P0135-02-Heater CHT Banch -1 Sensor-1, P0134-Low AQdiwity Bank1 Sensor Sensor 1. Defitinely it looks like Banch 1 Sensor 1 is defective . Can someone tell me is this is the oxygen sensor that needs replacement or something else that I need to change. I am almost getting ready to go into the cliff and let the car go over it..... I love this car and I will ike to fix it, best of all I just finished payinf for it and I will like to get a relief before I buy another car but it seems like Chevy makes their cars for 100k miles only..... In the other hand I have a Jap and the one has 165 k miles and is still going strong ...... Thanks for your support ....