I have been trying to chase down a clunk when starting from a stop, which is not entirely consistent. It seems to me that it happens when releasing the clutch, and is a sound which could be compared to putting the transfer into 4HI and then hearing the engagement when moving, but isn’t quite as loud or violent. When outside the vehicle, the noise seems to come from under the front seats, in the transfer case/gearbox area.
Obviously I cannot eliminate every possibility at once, but assistance in formulating a plan of action from easiest to most complicated would be much appreciated.
Base info:
2000 HZJ78
110K km
The most obvious would be the slip yoke. I greased the h*ll out of it (of course later removing the zerk and driving around to let out excess grease). Of course I simultaneously greased the uni-joints and checked for any play (there is none).
I have also checked the suspension components for loose/missing bolts and cracked or deformed bushings. Nothing standing out here. Being a HZJ78 it has springs in the front, but the leafs in the back are fine and cannot be the culprit.
I have verified the transmission mount looks fine with no deformation and is solidly attached.
Where to go next? Potentially I could remove the rear driveshaft and see whether this eliminates the noise when driving in 4HI with only the front driveshaft providing propulsion.
Video (I know, not very helpful…).
Thank you in advance.
Obviously I cannot eliminate every possibility at once, but assistance in formulating a plan of action from easiest to most complicated would be much appreciated.
Base info:
2000 HZJ78
110K km
The most obvious would be the slip yoke. I greased the h*ll out of it (of course later removing the zerk and driving around to let out excess grease). Of course I simultaneously greased the uni-joints and checked for any play (there is none).
I have also checked the suspension components for loose/missing bolts and cracked or deformed bushings. Nothing standing out here. Being a HZJ78 it has springs in the front, but the leafs in the back are fine and cannot be the culprit.
I have verified the transmission mount looks fine with no deformation and is solidly attached.
Where to go next? Potentially I could remove the rear driveshaft and see whether this eliminates the noise when driving in 4HI with only the front driveshaft providing propulsion.
Video (I know, not very helpful…).
Thank you in advance.
