Hello all,
I have an 03 trailblazer, 100,000 miles. When putting it into 4hi you get a whining noise, this noise is much louder in 4 lo (The best way i can describe this noise is if you take an rc car or something driven by an electric motor and push it along manually,). It doesnt really sound like a bearing or anything like that, also you dont feel anything. After checking fluid levels and such, and the problem not changing, I did some more listening and it seems the noise is coming from the transfer case motor. When the switch is flipped to a 4x4 mode, you can hear the axle motor go into place smoothly, but the differential motor struggles, makes a louder noise than the axle motor and seems to try twice and then it either over rides itself or engage as far as it can i cant really tell although it does go into 4 wheel drive.
Does anyone know how their transfer case motor sounds when it goes in and out of 4 wheel because this sound like its working to hard and binding up a bit.
All the lights on the 4x4 switch work normally, and the service 4x4 light has never been on, also the noise goes away completely in 2wd. I am thinking i will change the transfer case motor just wanted some opinions. Any help appreciated. thank you.
I have an 03 trailblazer, 100,000 miles. When putting it into 4hi you get a whining noise, this noise is much louder in 4 lo (The best way i can describe this noise is if you take an rc car or something driven by an electric motor and push it along manually,). It doesnt really sound like a bearing or anything like that, also you dont feel anything. After checking fluid levels and such, and the problem not changing, I did some more listening and it seems the noise is coming from the transfer case motor. When the switch is flipped to a 4x4 mode, you can hear the axle motor go into place smoothly, but the differential motor struggles, makes a louder noise than the axle motor and seems to try twice and then it either over rides itself or engage as far as it can i cant really tell although it does go into 4 wheel drive.
Does anyone know how their transfer case motor sounds when it goes in and out of 4 wheel because this sound like its working to hard and binding up a bit.
All the lights on the 4x4 switch work normally, and the service 4x4 light has never been on, also the noise goes away completely in 2wd. I am thinking i will change the transfer case motor just wanted some opinions. Any help appreciated. thank you.