The 2007 Ram 2500 sits in a transition year with three engine options, and your reliability story depends heavily on which one you bought. The 5.9L Cummins is the golden child here, while the first-year 6.7L Cummins brought teething problems, and the 5.7L Hemi can grenade itself spectacularly if abused.
5.7L Hemi Piston/Ring Failure and Cylinder Dropout
Occasional · high severityTypical onset: 80,000-150,000 mi
Symptoms: Excessive oil consumption (quart every 500-1000 miles), Blue smoke on cold start or deceleration, Misfire codes on one or more cylinders, Metallic knocking under load
Fix: Cast piston skirts crack or collapse, scoring cylinder walls. Full engine rebuild or short-block replacement required. 18-25 labor hours for R&R and rebuild. Machine work adds cost if boring needed.
Estimated cost: $4,500-8,000
First-Year 6.7L Cummins DPF/EGR Headaches
Common · medium severityTypical onset: 60,000-120,000 mi
Symptoms: Repeated regen cycles or regen failure messages, Check engine light with P2002/P2463 codes, Loss of power in limp mode, Excessive soot buildup requiring frequent forced regens
Fix: 2007.5 was first model year for 6.7L with emissions equipment debugging issues. DPF clogs prematurely, EGR coolers fail. DPF replacement 3-4 hours, EGR cooler 6-8 hours. Many owners delete emissions (legality varies).
Estimated cost: $1,800-3,500
Steering Linkage and Tie Rod End Wear
Common · medium severityTypical onset: 70,000-110,000 mi
Symptoms: Wandering or loose steering feel, Clunking over bumps from front end, Uneven tire wear on front tires, Play in steering wheel with wheels straight
Fix: Heavy-duty trucks eat tie rod ends and drag links, especially with oversized tires. Track bar bushings also wear. Plan on replacing entire steering linkage kit (both tie rods, drag link, track bar). 3-4 hours labor. Alignment required after.
Estimated cost: $800-1,400
48RE Transmission Cooler Line and Internal Failure
Common · high severityTypical onset: 90,000-140,000 mi
Symptoms: Harsh or delayed 2-3 shift, Slipping under load or when towing, Metal shavings in pan during service, Transmission overheat warnings, Pink milkshake in coolant (cooler failure)
Fix: The 48RE behind gas engines is marginal for heavy towing. Cooler lines corrode and leak, or internal cooler fails mixing ATF with coolant. External cooler replacement 2 hours. Full rebuild when clutches burn 14-18 hours. Many upgrade to aftermarket valve body and add external cooler preemptively.
Estimated cost: $2,800-4,500
TIPM (Totally Integrated Power Module) Electrical Gremlins
Occasional · medium severitySymptoms: Fuel pump not priming (no start), Gauges going haywire or dead, Wipers or windows operating on their own, ABS/traction control lights with no codes, Intermittent no-crank condition
Fix: The TIPM is Chrysler's Achilles heel in this generation. Internal relays fail causing bizarre electrical issues. Replacement requires programming. 1.5-2 hours labor. Dealer-only part historically, aftermarket rebuilds now available.
Estimated cost: $800-1,400
Front Ball Joint Failure
Common · high severityTypical onset: 80,000-130,000 mi
Symptoms: Clunking when turning or over bumps, Steering wheel shimmy at highway speed, Visible play when prying on tire with bar, Uneven tire wear, In extreme cases, wheel separation
Fix: Upper and lower ball joints wear, uppers fail more often. These are pressed into the knuckle, requires special tools or knuckle replacement. Both sides, all four joints: 4-6 hours. Alignment mandatory. Do NOT ignore—wheel can separate catastrophically.
Estimated cost: $900-1,600
Ignition Switch Failure (Recall 14V-053)
Occasional · high severitySymptoms: Key gets stuck in ignition, Engine shuts off while driving, No crank, no start intermittently, Accessories stay on after key removal
Fix: Ignition switch contacts overheat and fail. Recall issued in 2014 for steering column stall condition. Check if recall completed. Replacement 1.5 hours if not covered. Can strand you unexpectedly.
Estimated cost: $300-500
Exhaust Manifold Cracking (5.7L Hemi)
Occasional · low severityTypical onset: 60,000-100,000 mi
Symptoms: Ticking noise from engine bay on cold start, Exhaust leak smell in cab, Visible soot streaks on manifold, Failed emissions test
Fix: Cast manifolds crack between ports due to thermal cycling. Passenger side more common. Replacement 3-4 hours per side (remove wheel, inner fender). Dorman makes upgraded versions. Not urgent but gets louder over time.
Estimated cost: $600-1,000
Buy a 5.9L Cummins example if you can find one; avoid first-year 6.7L unless emissions work is documented; Hemi models are fine for light duty but will nickel-and-dime you on front-end parts and can lunch themselves if beaten on.
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.