I have 2005 TJ and it has a mild whining noise in Low Ratio only. It is most obvious when there is little or no load on the drive train.
Should I be worried
Should I be worried
No.I have 2005 TJ and it has a mild whining noise in Low Ratio only. It is most obvious when there is little or no load on the drive train.
Should I be worried
thanks I was intending to recheck the levels and for any metal later in the week. It has only done 80000km so would not expect any wear unless it’s been abused by a previous ownerI would say that's pretty normal, your transmission and the input side of the t-case are spinning over twice as fast as when in high range. Just as a precaution have you double checked the fluid levels in the t-case and trans?
why is the transmission and input side of the transfer be spinning more than twice as fast? The transfer case does nothing to affect these. The only thing it does is cause the output side of the transfer to either spin 1:1 when in Hi range or 4:1 (in my case) when in Lo range. The speed of the input side is controlled by engine rpm and transmission gear selection.I would say that's pretty normal, your transmission and the input side of the t-case are spinning over twice as fast as when in high range. Just as a precaution have you double checked the fluid levels in the t-case and trans?
In your instance it would be 4:1 times as fast. Now to answer your question. It's simple math. For simplicity let's look at 4th gear in the 5 speed trans which is a 1 to 1 gear ratio. If your engine is spinning at 800 rpm at a given speed in high range, in low range in your t-case, to achieve that same speed your engine rpm would be 3200.why is the transmission and input side of the transfer be spinning more than twice as fast? The transfer case does nothing to affect these. The only thing it does is cause the output side of the transfer to either spin 1:1 when in Hi range or 4:1 (in my case) when in Lo range. The speed of the input side is controlled by engine rpm and transmission gear selection.
My transfer has a slight whine at any speed. I think this is quite common.