Dodge Diesel Repair and Maintenance

We are the experts when it comes to the Dodge Cummins diesel engine and know the common problems with the design.  From turbocharger failure to Exhaust problems, Bays Complete Auto Repair is your one stop diesel mechanic expert.  Whether your Cummins diesel engine is knocking, have check engine light or are you experiencing a loss of power, let the experts at Bays Complete Auto Repair correctly diagnose and fix the problem.

Below is a list of the most common issues we run across on a daily basis:

Loss of Power: EGR Clogged My Turbocharger

The EGR in the first years of the 6.7 Cummins killed many a turbocharger. The EGR in the emission system makes the air that goes into the turbocharger dirty which causes them to clog. Replacement turbochargers are updated and don’t face the same issues.

DPF Emission Issues

Do you do a lot of short journeys on your 6.7 Cummins where your engine never quite reaches proper operating temperature? Then you might be familiar with the Diesel Particulate Filter (DPF) as it has a critical flaw in the 6.7 Cummins that if the engine doesn’t reach operating temperature it is not able to regenerate. When the DPF cannot regenerate it then clogs which will create a loss of power, bad smells from the engine and poor gas mileage. Fortunately for the most part, a few years later Dodge lessoned these problems.

Exhaust Problems

The 6.7 Cummins is an amazing engine and the Ram truck is a beast of a workhorse. It can handle almost anything and do it consistently without fail. However, over time everything wears out and certain compenents will need to be replaced or maintained. Over time we noticed that the exhaust manifold loses its shape and will need to be replaced. There are several aftermarket manifolds that do the trick and tend to last longer than OEM. Scheduled maintenance is the sure way to get most out of your vehicle.

Check-Engine Light

If you like to modify your 6.7 Cummins performance get used to a check engine light. The mods will improve the performance but also tend to cause a check engine light. The check engine light doesn’t necessarily mean the mod is bad but rather the trucks computer doesn’t recognize the new part. If your modification is throwing a check engine light code we recommend to you get a tuner to let the computer know what has changed. The tuner will not only improve performance of the 6.7 Cummins but will also give you real time data and also help diagnoses check engine lights.

Other Issues

Regardless of the problems with the Cummins 6.7, it is still one of the most popular and reliable diesels on the market. That’s because these problems can be fixed, with minimal downtime. Other issues we run into are:

Head gasket failure – Mostly due to being overworked and can be fixed with a better fastener for the cylinder head to the block.

Fuel Injectors go bad after time – These injectors perform amazingly but have a shorter life span and will need replacing after time.