![]() The part will usually cost only $100-$200. Thankfully, a head gasket does not have to be an expensive repair. Other symptoms include a coolant leak or overheating. This often results in a white, sweet-smelling smoke. The cause is not clear, but it may be due to the engine’s high cylinder pressure.Ī blown head gasket will usually cause coolant to leak into the combustion chambers. While head gasket issues are not incredibly common, they are more prevalent in these engines than others. If you need a short-term solution, you can try cleaning out the build-up inside the filter. Typically, the part alone will cost over $1,000. Your check engine light might also come on, or the vehicle may switch into reduced power mode.ĭiesel particulate filters are not cheap to replace. If this is a problem in your engine, you may experience power loss or a longer crank. ![]() If the DPF is clogged, gases cannot escape. However, it can still be a problem as your truck racks up mileage.Ī clogged DPF results in pressure build-up, leading to more heat and stress on the engine. This helps reduce the potential for clogging in newer engines. However, this led to more soot, which can clog the DPF.Įngines manufactured from 2013 to now use diesel exhaust fluid. Clogged Diesel Particulate FilterĪ clogged diesel particulate filter (DPF) is most common on older engines and those with higher mileage.Ĭummins originally tried to avoid using diesel exhaust fluid in these engines, leading the diesel to run richer to reduce emissions. Below, we will discuss a few of the common issues and their associated repair prices. Knowing what problems you may have to look out for before you purchase a vehicle with a 6.7 Cummins engine can be helpful. They don’t need repairs often, but earlier models are more prone to issues than newer models. If you’re doing maintenance yourself, be sure to only use parts and fluids that meet or exceed the OEM specifications.ĭodge has been using these engines in their trucks since 2007. To ensure your engine’s reliability, always make sure to be diligent about maintenance. In general, 6.7 Cummins engines are considered to be fairly reliable. ( Xanax) Are 6.7 Cummins Engines Reliable? This is in addition to those recommended at 15,000 miles. Replace crankcase ventilation (CCV) filter (for 2007-2018 models)įlush engine cooling system (for 2007-2012 models)įlush engine cooling system (for 2013+ models)Ĭheck and adjust valve lash (not required for models newer than 2018)Įach of the services listed above will have to be repeated each time your vehicle reaches the milestone again.įor example, all the services required at 7,500 miles will need to be repeated at 15,000 miles. Replace automatic transmission fluid and filter (for 69RFE transmission) Replace automatic transmission fluid and filter (for Aisin AS69RC transmission) Replace front and rear differential fluids Inspect CV or universal joints and lubricate if neededĬhange engine oil and engine oil filter (2013+ models) Inspect front end and lubricate if needed Change engine oil and engine oil filter (for 2007-2012 models)Ĭheck diesel exhaust fluid and add if necessary
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