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2007–2009 DODGE RAM 2500

6.7L I6 Cummins Diesel•4WD•AUTOMATIC•diesel•turbo
5-Year Cost of Ownership
$17,170 maintenance + known platform issues
~$3,434/yr · 290¢/mile equivalent · $6,427 maintenance + $7,823 expected platform issues
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5.7L V8 Hemi
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5.7L V8 Hemi
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5.9L I6 Cummins Diesel
Common Problems & Known Issues

The 2007-2009 Ram 2500 with the 6.7L Cummins represents the first generation of the 6.7 after Dodge dropped the 5.9L. These trucks are legendary for towing capability but suffer from early 6.7 growing pains, catastrophic transmission cooler failures, and chassis issues that can strand you.

Transmission Oil Cooler Failure Leading to Cross-Contamination

Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Milkshake appearance in transmission fluid or coolant overflow bottle, Transmission slipping or delayed engagement after coolant intrusion, Engine overheating or transmission overheating warnings, Catastrophic transmission failure if coolant mixes into trans for extended period
Fix: Factory oil cooler in the radiator fails internally, allowing coolant and ATF to mix. Requires full transmission flush (often multiple flushes), new radiator or external cooler bypass, new torque converter if contamination is severe. If caught late, full transmission rebuild needed. 8-15 hours labor depending on trans damage.
Estimated cost: $1,200-$6,500

6.7L Cummins Exhaust Gas Recirculation (EGR) Cooler Failure

Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: White smoke from exhaust on startup, Coolant loss with no visible leaks, Check engine light with P0401 (EGR flow insufficient) or P0402 (excessive flow), Engine overheating or rough idle when cold
Fix: Early 6.7 EGR coolers crack internally, dumping coolant into intake or exhaust. Requires EGR cooler replacement, often intake manifold cleaning due to coolant/soot buildup. Many owners delete EGR system entirely where legal. 6-9 hours labor for factory replacement.
Estimated cost: $1,800-$3,200

Steering Linkage and Tie Rod Wear (Recall-Prone)

Common · high severity
Typical onset: 50,000-100,000 mi
Symptoms: Death wobble at highway speeds after hitting bump, Excessive play in steering wheel (more than 1-2 inches), Clunking from front end over bumps, Wandering or darting when driving straight
Fix: Track bar, tie rod ends, and ball joints wear prematurely, especially on lifted or heavy-use trucks. Multiple recalls issued but parts still fail post-recall. Full front-end rebuild includes track bar, tie rods, ball joints, alignment. 4-6 hours labor.
Estimated cost: $800-$1,800

68RFE Transmission Valve Body and Solenoid Failures

Common · medium severity
Typical onset: 70,000-130,000 mi
Symptoms: Harsh or delayed 2-3 or 3-4 shifts, Transmission hunting between gears on highway, Check engine light with solenoid or pressure control codes, Limp mode engaging randomly
Fix: 68RFE transmission in these years has weak valve body and solenoid pack. Requires transmission pan drop, valve body R&R, updated solenoid pack. Fluid and filter change while open. 5-7 hours labor.
Estimated cost: $1,200-$2,400

Diesel Particulate Filter (DPF) and Turbo Variable Geometry Issues

Occasional · medium severity
Typical onset: 90,000-180,000 mi
Symptoms: Check engine light with DPF regeneration codes, Loss of power under load (turbo feels lazy), Black smoke on acceleration, Excessive oil consumption (1 quart per 1,000 miles or more)
Fix: DPF clogs if truck used for short trips; regeneration cycles fail. VGT turbo sticks due to soot buildup. DPF cleaning or replacement $800-2,000, turbo cleaning or rebuild $1,200-3,000. Many owners delete emissions where legal. 3-8 hours labor depending on component.
Estimated cost: $1,500-$4,000

Fuel Heater and Water-in-Fuel Sensor Failures

Occasional · medium severity
Symptoms: Hard starting in cold weather below 20°F, Check engine light with fuel heater circuit code, Water-in-fuel light stays on constantly even after draining, Fuel gelling in lines despite additives
Fix: Fuel heater element on filter housing burns out; water sensor fails and triggers false warnings. Replace fuel filter housing assembly with upgraded version. 1.5-2.5 hours labor.
Estimated cost: $300-$600

Front Differential and U-Joint Wear on 4WD Models

Occasional · medium severity
Typical onset: 80,000-140,000 mi
Symptoms: Clunking from front end when engaging 4WD, Vibration at highway speed in 4WD, Grinding noise from front differential, Grease leaking from driveshaft U-joints
Fix: Front driveshaft U-joints wear rapidly under heavy towing; front diff sees bearing wear. U-joints require driveshaft removal and pressing, 2-3 hours. Front diff rebuild 6-10 hours.
Estimated cost: $400-$2,800
Owner tips
  • Change transmission fluid every 30,000 miles and inspect cooler lines for pink residue — catching trans cooler failure early saves $4,000+
  • Install auxiliary transmission cooler bypassing factory radiator cooler to prevent catastrophic failure
  • Use fuel additive with anti-gel and lubricity in winter; change fuel filter every 10,000 miles
  • If keeping emissions intact, do monthly highway runs at 65+ mph for 30+ minutes to allow DPF regeneration
  • Inspect steering components every 20,000 miles; death wobble can appear suddenly and is dangerous at speed
Buy only if you find one with documented trans cooler replacement or bypass, clean emissions system, and tight front end — budget $3,000-5,000 for deferred maintenance on any high-miler.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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