2012 Ram 4000

2012 Ram 4000

Overview

The 2012 Ram 4000 is a heavy-duty commercial truck designed for demanding vocational tasks. Reliability is generally considered robust, particularly with its powertrain options. Owners and fleet managers often prioritize durability and performance in this segment. While no vehicle is entirely without potential issues, the Ram 4000 typically demonstrates strong performance in its intended applications. This analysis focuses on documented technical reliability concerns beyond routine maintenance, providing insights into common problem areas and their potential resolutions for the specific engine and transmission configurations available for the 2012 model year.

---

Engine

6.7L Cummins Turbo Diesel

EGR Cooler Failure

• Symptoms: Coolant loss, white smoke from exhaust, overheating, check engine light.
• Solution: Replacement of the EGR cooler. Some owners opt for EGR delete kits, though this may affect emissions compliance.
• Cost: $800 - $1500

Turbocharger Issues

• Symptoms: Loss of power, excessive smoke, whining or whistling noises, boost leaks.
• Solution: Repair or replacement of the turbocharger assembly. Regular maintenance and air filter replacement can help prevent issues.
• Cost: $1200 - $2500

Fuel Injector Problems

• Symptoms: Rough idle, poor fuel economy, engine misfires, hard starting.
• Solution: Replacement of faulty fuel injectors. Use of high-quality fuel and regular fuel filter changes are recommended.
• Cost: $300 - $600 per injector

Transmission

68RFE 6-Speed Automatic

Torque Converter Shudder

• Symptoms: Vibration or shuddering during acceleration, especially at lower speeds.
• Solution: Fluid and filter change, torque converter replacement, or transmission software update.
• Cost: $500 - $1500

Overheating

• Symptoms: Transmission slipping, delayed shifting, burning smell, check engine light.
• Solution: Transmission fluid and filter change, installation of an auxiliary transmission cooler.
• Cost: $300 - $800

G56 6-Speed Manual

Clutch Wear

• Symptoms: Slipping clutch, difficulty shifting gears, burning smell.
• Solution: Replacement of the clutch kit (clutch disc, pressure plate, release bearing).
• Cost: $800 - $1500

Dual Mass Flywheel Issues

• Symptoms: Rattling noises, especially at idle or when the clutch is disengaged.
• Solution: Replacement of the dual mass flywheel and clutch kit.
• Cost: $1000 - $2000

Suspension

Standard Chassis

Leaf Spring Breakage

• Symptoms: Sagging rear end, uneven ride height, clunking noises over bumps.
• Solution: Replacement of broken leaf springs.
• Cost: $400 - $800 per axle

Ball Joint Wear

• Symptoms: Wandering steering, clunking noises when turning or hitting bumps, uneven tire wear.
• Solution: Replacement of worn ball joints.
• Cost: $300 - $600 per side

Electrical

General Electrical System

Alternator Failure

• Symptoms: Dimming headlights, battery warning light, dead battery, electrical components malfunctioning.
• Solution: Replacement of the alternator.
• Cost: $400 - $700

Wiring Harness Issues

• Symptoms: Intermittent electrical problems, short circuits, corrosion in connectors.
• Solution: Inspection and repair or replacement of damaged wiring harnesses and connectors.
• Cost: $200 - $600

Exterior

Body Panels and Trim

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Interior

Cabin Components

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

---

Summary Verdict

The 2012 Ram 4000, particularly with the 6.7L Cummins Turbo Diesel engine, is a workhorse known for its durability. The most common reported issues revolve around the diesel engine’s emissions system (EGR cooler) and turbocharger, as well as potential wear on transmission components, especially under heavy use. Suspension components like leaf springs and ball joints can also experience wear, typical for a truck in this class. Electrical issues, such as alternator failure, are not uncommon. Overall, while specific components may require attention, the core powertrain and chassis are generally reliable for commercial applications when properly maintained. Proactive maintenance and addressing issues promptly are key to maximizing the longevity of the Ram 4000.