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6.7 Cummins Problems: Quick Fixes To Focus On

The 6.7 Cummins is an engine that has been used in Dodge and Ram trucks since 2007. However, early model years of these trucks have been more prone to problems. All engines have their kinks, and the B6.7 Cummins is no exception. Here are some problems that commonly occur in this engine. In the next article, we’ll discuss how to improve Cummins 6.7L reliability. In the meantime, you can check out the article below for some tips on troubleshooting.

6.7L Cummins straight-six engine

The 6.7L Cummins straight-seix engine is a powerful and durable diesel engine that has seen some unanticipated problems. The engine is known to have many faults, but these are relatively minor. The most common problems occur on trucks with earlier model years, though older models are less susceptible to failure. The following are some common 6.7L Cummins straight-six engine problems.

Fuel dilution is an inherent problem with the 6.7L Cummins. This is due to how the engine manages regeneration, a process where particulate matter is burned in the DPF. The 6.7L Cummins does not use a dedicated fuel injector, and therefore introduces fuel into the exhaust stream after normal combustion. This can cause the engine to overheat, so if you see any of these symptoms, you should take it to a mechanic.

EGR issues also affect modern diesel trucks. The B6.7 Cummins is no exception. This problem is related to emissions-related equipment, and is common with most current diesels. If you’ve owned a truck for many years, you know about this problem. A clogged DPF can lead to a low-power mode, engine fault codes, and a protracted cranking time.

Another 6.7L Cummins engine problem is the killer dowel pin. The tiny steel dowel pin was pressed into the engine block during 1989-2002 to locate the timing gear housing. Over time, it can work its way out and completely wreck the engine. It usually contacts the cam gear first, but can also draw into the crank and injection pump gears. Ultimately, the result can be engine failure.

Variable geometry turbocharger

A variable geometry turbocharger (VGT) for 6.7 Cummins engines is the first such design for this popular truck engine. The VGT is capable of reducing turbo lag and maximizing fuel efficiency in the 6.7L Cummins. This engine technology has a few advantages over the conventional VGT. Its patented sliding nozzle ring allows the VGT to adapt to the load demand as the engine revs. Furthermore, this turbocharger is one of the most fuel-efficient short-route EGRs available.

A variable geometry turbocharger works by adjusting the air-to-fuel ratio across the turbine. Several benefits of this technology include better low-speed torque characteristics, reduced turbocharger lag, and enhanced EGR flow. The VGT also works by using a moving wall or pivoting vane design to raise the exhaust temperature, which is crucial for the aftertreatment system. This design also allows the VGT to boost the engine’s horsepower.

In addition to increasing flow and horsepower, these turbochargers also lower exhaust pressure and increase fuel efficiency. They are capable of supporting between 60 to 100 horsepower, and can be used with or without fuel modifications. If you want to replace your stock junk with a variable geometry turbocharger, SX-E and Fleece Performance have several turbocharger kits that offer both functionality and performance.

While a VGT is a great option for the 6.7L Cummins engine, some models can use a fixed geometry turbo. They are cheaper than VGT but contain more parts and lack the exhaust brake. However, these turbos can be improved with aftermarket exhaust brakes and custom tuning. You can even install a VGT with a fixed geometry turbo and enjoy a greater powerband.

Fuel filter

If you’re looking for a fuel filter for a 6.7 Cummins engine, you should consider getting one from Mopar. These filters are made to match the original factory specs and are a dependable option. If you’re not sure whether Mopar makes a good one, you can look at a review of the fuel filter for a 6.7 Cummins engine by Fleetguard. Then, decide if it’s worth the extra money.

Before you buy a fuel filter for a 6.7 Cummins, you should consider the fitment of the filter. A cheap knock-off may not be the best option because it will break faster than you expect or arrive damaged. A quality filter shop will have a reputation for making quality filters and will ensure a long-lasting performance. To help you make the right decision, read customer reviews and get a quote.

One of the best options is the Mopar fuel filter, which will fit Dodge trucks from 2010 to 2017. This filter is designed specifically for the 6.7 Cummins engine and will not fit any other type of engine. It uses a 2 step micron filtration system to remove most contaminants. The replacement filter for a 6.7 Cummins will fit your truck if it’s made with that specific model. The fuel filter is not a difficult task when you have a professional to help you.

Aftermarket fuel filters for a 6.7 Cummins engine are designed with top-notch materials like metal housing and premium sealing components. The resulting filter offers outstanding durability, low flow restriction, and high dirt holding capacity. Furthermore, they are easy to install, meaning that you can get one in a few minutes. Another good feature of the WIX fuel filter for 6.7 Cummins engine is its affordable price.

Head gaskets

If you’re considering replacing the head gaskets in your 6.7L Cummins, you’ve likely heard about blown head gasket scenarios. But what causes them? There’s a good chance you’re having the same issue. One way to make sure you’re not having a catastrophic head gasket failure is to check the sealant on your cylinder head. A good gasket will have a tight seal that will last a long time and help you keep your engine running smoothly.

Oil change

One of the most common 6.7 Cummins problems is the lack of oil. The maximum oil capacity of this engine is twelve quarts, but many users have reported getting less than this when they change the oil. This could be due to a leak, or the engine may have burned out. A typical oil change for a 6.7 Cummins will only yield 11 quarts of oil, plus an extra quart for the filter.

The frequency of oil changes depends on several factors, including the mileage, weather conditions, and the type of oil you use. In general, the rule of thumb is once every 15k miles or six months, although you may have to change it more often if you drive a lot in stop-and-go traffic. Check your owner’s manual for specific recommendations. Remember to always check the oil pressure, too, as low oil pressure can severely damage an engine.

The type of oil you use in your 6.7 Cummins engine will depend on the mileage and type of oil. You should always use the recommended fluid, but it may not be readily available. For best performance, consider using a synthetic oil. It is less likely to cause engine problems and improves fuel economy. If you are using synthetic oil, make sure to follow the manufacturer’s recommendations. You’ll also want to look for oil that meets the engine’s specifications.

Injector wear and tear can cause hard starts. If this happens, the injectors will not turn on, and the engine will take longer to start. A blown head gasket can cost between $100 and $200, and the labor will add to the expense. The oil dilution that happens during regeneration is normal and should be monitored for excessive dilution. It’s also important to get a regular oil analysis to check for signs of overdilution and prevent costly repairs.