Hello. I have an issue I hope you all can help me with. There is a low whine or moaning sound coming from, I think, my transmission or t-case. Here's what I know:
1. The noise is present only when the transmission is in DRIVE.
2. The noise goes away when I'm coasting with transmission in NEUTRAL.
3. The noise IS present when the t-case is in NEUTRAL and the transmission is in DRIVE.
4. With the t-case in NEUTRAL, trans in DRIVE, the noise is louder when the truck is moving at a higher speed (say above 30mph) than when the truck is sitting still with the engine rpm's up above idle (don't have a tach but my guess would be around 1500 rpm).
5. The noise DOES vary with engine rpm when t-case is in NEUTRAL, trans is in DRIVE.
6. With t-case in the normal position, the noise seems to get louder with the speed of the truck INSTEAD of engine rpm.
Did I lose everyone? Any ideas?
As background, I just had the transmission rebuilt by DTT back in April. The trans has been performing flawlessly. Bill Kondolay gave me a few ideas to check but thought I'd try you guys as well. I already made sure the cooler lines aren't rubbing by inserting tie-wraps between the lines every few inches and I made sure the clamps are tight.
Thanks in advance for any suggestions or help.
Wade
1. The noise is present only when the transmission is in DRIVE.
2. The noise goes away when I'm coasting with transmission in NEUTRAL.
3. The noise IS present when the t-case is in NEUTRAL and the transmission is in DRIVE.
4. With the t-case in NEUTRAL, trans in DRIVE, the noise is louder when the truck is moving at a higher speed (say above 30mph) than when the truck is sitting still with the engine rpm's up above idle (don't have a tach but my guess would be around 1500 rpm).
5. The noise DOES vary with engine rpm when t-case is in NEUTRAL, trans is in DRIVE.
6. With t-case in the normal position, the noise seems to get louder with the speed of the truck INSTEAD of engine rpm.
Did I lose everyone? Any ideas?
As background, I just had the transmission rebuilt by DTT back in April. The trans has been performing flawlessly. Bill Kondolay gave me a few ideas to check but thought I'd try you guys as well. I already made sure the cooler lines aren't rubbing by inserting tie-wraps between the lines every few inches and I made sure the clamps are tight.
Thanks in advance for any suggestions or help.
Wade