John Wayne
New Member
Thanks for the quick reply!Hello John Wayne,
What year is your Ts14g, and what engine is in it?(tier2 or tier3?)
There wasn’t a permanent fix for the drive shaft/ yolk/ coupler failure, which is especially notable on the front engine.
The front engine has a bit more going on, with the pumps, ac compressor, ect. So determining what exactly is causing driveline issues is difficult.
What is your low idle set to?
Any engine faults active?
Any play in the front yolk?(splines wear, or the nut comes loose)
Have you calibrated your transmissions lately?
How cold of weather are you working in?
The machine is a 2006 with 5.9 Cummins tier 2 in front and back. Mechanic has removed the hydraulic pump stack, transmission pump from machine and started it without parasitic loads and it still “chugs” and vibrates then takes off. I believe the idle is at 700 rpm. Cummins came out and adjusted the idle and checked out the engine however still “chugs”. Machine has a new coupler and rebuilt drive. Maybe 1/16” free play in the driveshaft before engine turns. When it “chugs” excessive rattling noise from rear drive can be heard as well as during engine shut down. Not sure if/when transmissions have been calibrated. I know they shift because we recently had to replace voltage protection module for power to ecu’s. Engine runs good however does its “chugging” when first started in the morning. It does not matter if it is 20-80 degrees Fahrenheit. Engine will “chug” and eventually break the driveline. “Chug” condition can be duplicated if the machine is idling and the hydraulics are actuated. Transmission was recently resealed by John Deere dealer and they said everything looked good inside. Problem existed before jd resealed transmission. We are not sure which way to go without throwing expensive parts at it. Any ideas would be greatly appreciated. Did Terex update/replace that entire drive to eliminate that noise?
Thanks