Last post on Nov 14, 2013 at 3:31 PM
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Chevrolet TrailBlazer, SUV
#57 of 124 Trailblazer rough idle problems
Jun 22, 2008 (8:07 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 ....
#58 of 124 Re: 04 chevy trailblazer LS [thuckbay]
Sep 17, 2008 (11:18 am)
Hi I was just wondering if you found the solution to this problem? I have the same problem when i'm driving my truck just shuts off and i can put it in park and start it back up and drive away... I'm a 21 year old female i just bought this truck and Im not sure really about anything mechanical I have no clue...
#59 of 124 KEEPS STALLING
Sep 17, 2008 (11:29 am)
I have an 02 TB and all of a sudden it just stalls as i'm driving seems to be when i come up to a stop light or stop sign, It allows me to put the truck into park and restart it right away but it's not safe at all because as the truck stalls I lose all control of the steering and brakes (obviously because theres no power) I am a 21 year old mother of 2 and kinda scared I'm going to crash into someone I have no clue about cars and have been getting maybe guesses as to whats wrong but everyone is saying completely different things so I'm not sure where to start... PLEASE HELP!!!!!
#60 of 124 Re: 02 TB w/ start issues [dogday]
Oct 09, 2008 (11:58 am)
I am having the same exact problem as dogday. 2002 TB is stuck in park, wont start, and when key is turned to "run" position the speedometer and RPM gauge bounce all over the place. Im ready to loose it, any help is MUCH APPRECIATED!
#61 of 124 Re: KEEPS STALLING [terrilyne]
Oct 23, 2008 (4:28 pm)
I'm having the same problem with my '02. It does the same thing as yours, but only the first time it is used during the day. It doesn't matter the temperature, amount of time 'warming up', amount of gas in the tank... I've had it at the dealership during the day several times and overnight 3 different times and they keep saying it doesn't happen to them. They can't get any codes. I'm so scared I'm going to get rear-ended or loose control of the steering with my little boy in the car that I don't want to drive it anymore! Has anyone had any luck fixing something like this? Please?
#62 of 124 loss of power when I turn on the defrost
Dec 11, 2008 (5:10 am)
I just replaced my battery and next day if I'm driving with the defrost on it stalls when stopped at light etc... also when in park and defrost is turned on power is reduced. Have a 2002 TB. It doesn't lose power when other climate control features are on only with the defroster.
Thanks for any help.
#63 of 124 Re: loss of power when I turn on the defrost [steelerfan7]
Dec 11, 2008 (6:41 am)
When the defroster is on the A/C compressor is engaged to dry the air. Sounds to me like the idle control is not working properly, causing the idle to slow when the compressor is engaged to the point that it will stall. I assume that when not idling all is well?
#64 of 124 Re: loss of power when I turn on the defrost [burdawg]
Dec 11, 2008 (6:57 am)
WELL WHEN I WAS DRIVING WITH THE DEFROST ON IT SEEMED AS THOUGH THE ACCELERATION WAS CHANGING ON ITS OWN , (WASN'T CHANGING MY GAS PEDAL PRESSURE)
THE ACCELERATION WOULD GO UP AND DOWN AS I DROVE .
HOWEVER IT SEEMS FINE WHEN THE OTHER CLIMATE CONTROLS ARE ON, SUCH VENTED HEAT. ALSO NO PROB WHEN THE RADIO IS ON.
THANKS FOR ANY HELP
#65 of 124 followup from steelerfan7
Dec 12, 2008 (9:37 am)
well we had the alernator checked and that seems to be fine so still no luck figuring out why my rpm's drop when the defrost is turned on in park and if i'm in drive at a stop light etc.. the car will stall. seems to be okay when not running the defroster any ideas out there.
#66 of 124 Won't start but full power to everything.
Dec 17, 2008 (6:00 am)
I have a 2003 Trailblazer with a 4.2. It has been running like a champ, but yesterday morning i went to start it turned the key and everything came on, but no cranking. So i started reading on here what to look at. I changed the starter relay no luck. I went and bought a new ignition switch, and as i was pulling the column apart i tried to start it and it worked. So i tried to get it into drive but no luck, just stuck in park. No clicking when i hit the brakes or anything. So i went ahead and changed the Ignition Switch anyway got it all back together started fine. Tried to get it into drive, reverse, neutral, or anything and it will not budge. I shut it off after a couple of tries and then it did the not starting thing again. I tried unplugging the battery and leaving it all night. I can start it now, but still can't get it out of park.
I don't think that the ignition switch was bad i think something else is going on. No way that my brake switch and ignition went out over night. Anyone else have resolution to their issue. The truck seems to start kind of funny at first but idles and stays running.