Recently my car has developed a drivetrain knock when 4wd engages. When torque goes to the front wheels I was getting a repetitive regular knock. Goes away when you reduce the throttle. It does not occur when 4wd is disabled. Am running the car in 2WD atm
Anyone had this problem before? Didn't find anything while searching. Had a look underneath the car as I did run over a branch on the road before the car started doing anything. Couldn't find any obvious damage. I have checked the attessa fluid, it is over maximum.
I do have a few error codes, 8, 9, 18, 18 is the ETS pressure switch.
Could something in the front diff or transfer case have let go?