A new diesel transmission is a huge investment, and one that’s often not budgeted for. Thankfully, before the death of a transmission there are some tell-tale signs to look out for. Looking for these basic signals and caring for the immediate issue can help avoid a full transmission rebuild.
Your diesel vehicle’s gear system is integral to the transmission. Common gear shifting issues on an automatic transmission include hanging gears, dropping out of gear while driving, or shifting for no reason. On a manual transmission, grinding or shaking when shifting gears are also clear signs to have the transmission checked. Some of these shifting issues can be as simple as battery cables needing cleaned. Left alone, this will eventually lead to transmission failure!
Noise (Nosier than Usual)
Pay close attention to what your diesel vehicle sounds like. If it sounds clunky or whiney, you’ll want to evaluate your diesel transmission. A whining noise when an engine is running can be an indication of a bearing that is on the verge of failure. A clunky noise could be caused by a failed flex plate or dual mass flywheel.
The best way to diagnose noises is with a diesel performance technician’s guidance, and failure to repair anything making a sound can cause damage to many engine components that extend beyond the transmission.
Don’t confuse this with a DPF regen cycle on newer trucks (when the engine is actively removing diesel particulate matter or soot from the exhaust gas). A burning smell from under the hood is a sign that transmission fluid is burning, or a possible slipping clutch in the case of a manual transmission. Check that transmission!
A diesel transmission rebuild is time consuming and costly. Acting on these tell-tale signs will save you money in the long-run, not to mention increase the performance of your diesel engine.
If you notice any of these signs or want to schedule a routine maintenance appointment to protect the life of your diesel engine and transmission, call our Omaha and Lincoln diesel performance technicians to schedule an appointment. 402.443.5385