Last post on Dec 06, 2013 at 5:25 AM
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Chevrolet TrailBlazer, SUV
#1 of 50 04 Trailblazer 4x4 Issues
Dec 03, 2007 (5:22 pm)
I've had a problem the the 4WD Service light commiing on and not being able to engage. This normally happens in the morning when its really cold pretty sure it was -5 both times. After going to the dealer they said it came up with multiple codes from replace 4WD Selector Switch, to replacing the actuator, to not communicating with the ECM. After letting the truck warm up and shut it off than start it again the problem cleared and worked properly again. They cleared the computer and told me to come back in a week to narrow down the codes. So maybe if anyone has had a similiar problem if you could let me know. Thanks all
#2 of 50 Re: 04 Trailblazer 4x4 Issues [aim4587]
Jan 09, 2008 (12:47 am)
i have the same problem. i own a 2004 tb LT 4X4
however i live in calif and it doesnt get below 30degrees
its the selector switch.
#3 of 50 Re: 04 Trailblazer 4x4 Issues [aim4587]
Feb 15, 2008 (7:02 pm)
I've had similar problems this winter when the temperatures are below 20 or so. If I try to engage A4WD or 4HI when I first get going, it will not engage and generates the service light. After the car (and drive train) are warm, it will engage without a problem. After the car is turned off and back on, the service light clears.
#4 of 50 Re: 04 Trailblazer 4x4 Issues [dougrsmith]
Feb 18, 2008 (7:22 pm)
Talking to some people in similar temperatures was told it may have to do with the weight of the oil used in the transfercase not very familiar which oil can and cant be used or if there is a cold weather oil. Would think it has to be thinner if anyone knows anything about this please let me know.... Oh and dougrsmith im having exactly the same problem to a tee.
#6 of 50 4 Wheel Drive
Feb 18, 2008 (4:52 pm)
I have 06 ChevyTrailblazer and it is currently at the dealership for some 4 wheel drive issues. I had the veh in 4 high and noticed the traction wasn't quite there but chalked it up to some icy spots. The next morning I could not get enough grip to get out of my driveway. Based on the switch the veh was still in 4 high. I switched it from 4 high to auto to 2 wheel and then back to 4 high when it finally seemed to catch. Drove to work with no problem and when I went home I went to switch it out of 4 wheel to auto and the light just blinked and would not catch so I put it back on 4 high when the service light came on. I took it immediately to the dealer and 3 days later we still have no resolve.
So far we have replaced the Transfer module and in reading some of the posts I would have thought that to be where the problem lies as it was very similar in description. The dealer advised that the code did in fact show this to be the issue, however a new transfer module has not fixed it.
We have also replaced the 4 wheel drive module. I could find nothing in the posts on this so not sure about that detail.
I thought I would throw this issue out here to see if anyone has suggestions into where else the problem could be.
Now I am curious as to how long this may have been a problem. I just put 4 brand new tires on it at 40k miles due to wearing in middle which I feel was a bit early to have to do. I wonder if the 4 wheel drive could have been slipping in and out and went unnoticed causing the tire wear.
Any thoughts or ideas are appreciated.
Feb 29, 2008 (7:39 pm)
were exactly is the transfer case actuator
#8 of 50 Transmission problem: 2006 Chevy Trailblazer 4wd 31500 mi
Mar 13, 2008 (9:05 am)
Hi, I have a 2006 Trailblazer (Extended) with 4 Wheel Drive. It works great in 2WD or 4 Wheel High. However, when I set it to "Auto" and I drive up a hill, something seems to "Slip" / "Clunk" about every 3 seconds. I took it to the dealer and they "could not find anything wrong" and asked if I was driving on Ice or in wet conditions. I have tested it in completely dry conditions and it always portrays the same symptoms when driving up a hill. What is likely the issue? Is this normal? I never noticed it until this year, and we live in a snowey area, so have often driven in "Auto" since we had the car.
#9 of 50 Problem with Trailblazer 2008 4X4
Jun 01, 2008 (12:40 pm)
I have a 2008 Trailblazer 4X4 (2 moth old) but I am a little disappointed about the 4X4 feature of this car. When I select the 4hi or 4low in off-road conditions, it seems that while driving I can't turn the steering wheel to the left or to the right more than certain angle because the car can not move freely; I feel that the car is braked and with some stress in the front axle. Is this normal???. I owned a Blazer 4x4 1999 and this did not happen while using the 4x4 feature.
Also, sometimes the engine is too noisy due to the cooling fan. The engine losses power and the fuel consumption increases. Now this situation is more frequent and it seems that the cooling fan is engaged at all time. I understand that the cooling fan in this car is not electrical (it is mechanical) and is engaged only when engine is hot enough but the cooling fan is engaged even when the engine is cool.
I just want to know more about this problem to be well informed prior going to the technical service for the guarantee...You all must know how that people are when talking about guarantee!!!!!
#10 of 50 Re: Problem with Trailblazer 2008 4X4 [jcgr23]
Sep 12, 2008 (5:02 pm)
The problem with turning the vehicle is because the 4 wheel drive is working correctly. When you select 4H or 4L it locks the rear axle. This mean that it makes the rear tires spin at the same speed and as one. In normal 2wd operation the tires spin freely of each other. When you turn to the right the wheel on the driver side has to spin faster to keep in sync with the inside tire on the right.
But when you are in the snow, or on ice the tires wont spin at once. One will spin while the other just sits there.
I would not suggest using 4 low unless your trying to go up a very steep hill or trying to climb a mountain. And i would only use 4H if it was very muddy or if AWD wasn't cutting it in the snow or ice.
You can really hurt your axles by driving around in 4H if the terrain isn't loose enough for the tires to slide on. Stick with AWD or 2H.