Common Warning Signs That Need Attention
Recognizing the early warning signs of Cummins diesel problems can save you thousands in major repairs. Hard starting, especially in cold weather, often indicates issues with your grid heater or lift pump that need prompt attention. Excessive black or white smoke from your exhaust typically points to fuel system problems involving fuel injectors or injection pump timing. If you’re experiencing loss of power during acceleration or while towing, this could signal turbocharger issues or concerns with your DPF regeneration cycle. P-pump issues in older 5.9 Cummins engines create distinctive symptoms, including rough idling and fuel delivery problems that our technicians can diagnose quickly. DPF regeneration problems are widespread in 6.7 Cummins engines, especially if you primarily drive short distances or in stop-and-go traffic. Our diagnostic process at CDT Automotive includes comprehensive testing of your 68RFE or Aisin transmission, as these components work closely with your Cummins engine. You can reach us at (919) 626-8668 to schedule an inspection if you notice any concerning symptoms in your Ram diesel truck.
Comprehensive Service Remedies for Maximum Reliability
Our Ram Cummins repair services extend beyond basic maintenance to include specialized procedures that keep your diesel engine operating efficiently for years. Fuel system cleaning is essential for maintaining proper injection pump function and preventing costly fuel injector failures that plague high-mileage Cummins engines. We perform lift pump upgrades for customers who want to avoid the standard lift pump failures that can damage their CP3 or CP4 injection pump. Transmission service for your 68RFE or Aisin transmission includes fluid changes, filter replacements, and diagnostic testing to ensure smooth power delivery from your Cummins engine. Turbo inspection and cleaning services help maintain proper boost pressure and prevent the oil contamination issues that can destroy turbocharger bearings. DPF cleaning using specialized equipment removes accumulated soot and ash that can trigger regeneration problems and reduce fuel economy. Our shop hours are Mon-Fri: 8AM-5:30PM, making it convenient for you to schedule the preventive maintenance your Ram Cummins needs. Every repair comes with our comprehensive warranty, giving you confidence that your diesel truck will perform reliably whether you’re commuting around Fuquay-Varina or hauling heavy loads across North Carolina.
Frequently Asked Questions
How often should I service my Ram Cummins diesel engine? Most Ram Cummins engines require oil changes every 7,500-10,000 miles, depending on driving conditions, fuel filter replacement every 15,000 miles, and comprehensive inspections annually to prevent major issues.
What causes DPF regeneration problems in 6.7 Cummins engines? DPF regeneration problems typically result from short-distance driving that doesn’t allow the system to reach operating temperature, contaminated diesel fuel, or faulty sensors that prevent proper regeneration cycles.
Why do CP4 injection pumps fail more frequently than CP3 pumps? CP4 injection pumps have tighter tolerances and are more sensitive to fuel quality issues, making them more prone to catastrophic failure that can contaminate the entire fuel system with metal debris.
Can you repair both automatic transmissions used in Ram diesel trucks? Yes, we service both 68RFE and Aisin transmissions, including fluid changes, filter replacements, and complete rebuilds when necessary to handle the high torque output of Cummins engines.
How do I know if my lift pump is failing? Common symptoms of failure include hard starting, loss of power under load, air bubbles in fuel lines, and low fuel pressure readings during diagnostic testing.
