The 2007 Ram 3500 is a workhorse that's either bulletproof or a money pit depending entirely on which powertrain you get. The 5.9L Cummins models from this year are legendary for longevity, while the 5.7L Hemi gas trucks have serious bottom-end weakness, and the 6.7L Cummins brought new emission headaches.
5.7L Hemi Dropped Valve Seats and Spun Bearings
Occasional · high severityTypical onset: 80,000-150,000 mi
Symptoms: sudden loss of power and catastrophic engine noise, metal shavings in oil, complete engine failure without warning, knocking that progresses to seized engine
Fix: The 5.7L Hemi in these trucks suffers from valve seat failures where the hardened seat drops into the cylinder, and rod bearing failures particularly on trucks used for heavy towing. Both require complete engine rebuild or replacement. Typical rebuild with machine work runs 40-60 hours labor, R&R another 12-16 hours.
Estimated cost: $6,500-12,000
48RE Automatic Transmission Failure (Gas Models)
Common · high severityTypical onset: 100,000-180,000 mi
Symptoms: harsh or delayed 2-3 shift, slipping under load especially when towing, burnt transmission fluid smell, won't hold overdrive, limp mode or no movement
Fix: The 48RE behind the Hemi is chronically weak for a 1-ton truck. Overdrive clutches burn up, valve body wears, and torque converter fails. Rebuild with upgraded clutches and valve body takes 18-24 hours. Many owners proactively upgrade to aftermarket valve body and billet torque converter.
Estimated cost: $3,200-5,500
Steering Tie Rod and Drag Link Failure
Common · high severityTypical onset: 60,000-120,000 mi
Symptoms: death wobble especially after hitting bumps, loose or wandering steering, clunking from front end over bumps, visible play in tie rod ends, truck pulls or darts unpredictably
Fix: The tie rods, drag link, and track bar all wear out prematurely, especially on lifted trucks or those with oversized tires. This contributed to multiple NHTSA recalls. Full steering linkage overhaul including tie rods, drag link ends, and track bar takes 4-6 hours. Use only heavy-duty aftermarket parts.
Estimated cost: $800-1,400
6.7L Cummins DPF and EGR System Issues
Common · medium severityTypical onset: 70,000-140,000 mi
Symptoms: check engine light with P2002 or P0401 codes, excessive regen cycles killing fuel economy, loss of power and limp mode, black smoke on acceleration, clogged intake manifold
Fix: The first-year 6.7L Cummins had teething problems with emissions equipment. DPF clogs require cleaning or replacement (4-6 hours), EGR coolers crack and fail (8-10 hours), and intake manifolds clog with soot requiring removal and cleaning (6-8 hours). Many delete emissions illegally where not inspected.
Estimated cost: $1,200-3,800
Front Suspension Ball Joint Failure
Common · medium severityTypical onset: 80,000-130,000 mi
Symptoms: clunking or popping when turning, uneven tire wear on inside edge, loose feeling in steering, visible grease leaking from boot, play when prying on wheel
Fix: Upper and lower ball joints wear out faster than they should given this is a heavy-duty truck. The uppers tend to go first. Requires pressing out old joints and pressing in new ones, 5-7 hours for both sides with alignment. Factor in knuckle replacement if ball joint spin in the bore.
Estimated cost: $1,000-1,600
Ignition Switch Failure (Recall 14V-053)
Occasional · high severitySymptoms: engine stalls while driving, no start intermittently, accessories cut out randomly, key gets stuck in ignition, dash lights flicker or go dark
Fix: The ignition switch can fail internally causing stalling or no-start. This was a major Chrysler-wide recall affecting millions of vehicles. If not already done under recall, replacement takes 1-2 hours including steering column disassembly. Check if your VIN was covered and if work was completed.
Estimated cost: $0-350
Transmission Cooler and Lines Leaking
Occasional · medium severityTypical onset: 90,000-150,000 mi
Symptoms: transmission fluid dripping under truck, low fluid level on dipstick, transmission overheating, fluid spots in driveway, transmission slipping after highway driving
Fix: The factory transmission cooler in the radiator and the external cooler lines rot out from road salt and corrosion. Lines are 1-2 hours to replace, but many trucks have aftermarket auxiliary coolers that develop leaks at fittings. Always replace with external heavy-duty cooler, not factory radiator style.
Estimated cost: $300-800
TIPM (Integrated Power Module) Failures
Occasional · medium severitySymptoms: gauges reading erratically or going dead, fuel pump relay clicking repeatedly, no start despite good battery and starter, random electrical gremlins like wipers running on their own, warning lights illuminating without cause
Fix: The Totally Integrated Power Module (TIPM) controls most electrical functions and is known for internal relay and circuit failures across all Chrysler products of this era. Replacement is 2-3 hours but unit requires programming to VIN. Some shops repair individual relays for less money.
Estimated cost: $600-1,400
Buy a 5.9L Cummins model with manual transmission and it'll run 500k miles; gamble on a 5.7L Hemi or early 6.7L and you're looking at expensive engine or emissions work inside 150k miles.
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.