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2007 DODGE MAGNUM

2.7L V6•RWD•AUTOMATIC•gas
5-Year Cost of Ownership
$63,821 maintenance + known platform issues
~$12,764/yr · 1,060¢/mile equivalent · $31,743 maintenance + $8,378 expected platform issues
Compare this engine
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3.5L V6
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5.7L V8 Hemi
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6.1L V8
Common Problems & Known Issues

The 2007 Dodge Magnum on the LX platform shares DNA with the Charger and 300, inheriting both their rear-drive handling and their notorious weak points: transmission cooler failures that destroy the trans, and catastrophic engine damage on the 2.7L V6. The 3.5L and Hemi engines are far more durable, but all suffer from transmission shift linkage and mount issues.

Transmission Oil Cooler Failure Leading to Trans Destruction

Common · high severity
Typical onset: 80,000-140,000 mi
Symptoms: Pink or milky transmission fluid indicating coolant contamination, Sudden loss of all forward gears or erratic shifting, Trans slipping after engine overheats or coolant loss, Strawberry milkshake appearance in coolant reservoir
Fix: The factory trans cooler inside the radiator fails, mixing coolant and ATF, which destroys clutch packs and seals within days. Requires transmission rebuild or replacement (8-12 hours) plus radiator replacement. Preventive fix is external trans cooler bypass install (2 hours). Many shops now do external cooler installs as standard practice on any trans service for these cars.
Estimated cost: $3,500-5,500

2.7L V6 Engine Sludge and Bearing Failure

Common · high severity
Typical onset: 90,000-150,000 mi
Symptoms: Loud knocking or rattling from engine at idle that worsens with RPM, Oil pressure warning light or low pressure readings, Metal shavings in oil or oil filter, Engine seizes or loses power suddenly
Fix: The 2.7L has inadequate oil passages and runs hot, causing sludge buildup that starves bearings. Rod and main bearings fail, requiring complete engine rebuild (18-24 hours) or used engine swap (12-16 hours). No real preventive fix except religious 3,000-mile oil changes with full synthetic, which many owners skip. This engine is a liability.
Estimated cost: $4,000-7,000

Transmission Shifter Cable Bushing and Linkage Failure

Common · medium severity
Typical onset: 60,000-120,000 mi
Symptoms: Shifter feels loose or won't stay in park, Gear indicator doesn't match actual gear position, Can remove key with vehicle not in park, Transmission thinks it's in neutral when in drive
Fix: Plastic bushing at shifter cable end disintegrates, also shift cable stretches over time. Covered by a recall (P38) but many vehicles never got the fix. Replacement requires column disassembly and new cable (2-3 hours). Simple diagnosis: wiggle shifter and watch for excessive play at transmission end.
Estimated cost: $250-450

Transmission Mount Failure

Common · medium severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunk or thud when shifting from park to drive or reverse, Vibration through floor at idle with transmission in gear, Visible transmission sag or misalignment when inspected, Shifter feels notchy or catches between gears
Fix: Rubber mount deteriorates, allowing transmission to move excessively and stress shift linkage. Requires lifting transmission slightly for replacement (1.5-2 hours). Often done in conjunction with shifter cable repair. Cheap part, but labor adds up if you're also doing the cable.
Estimated cost: $200-350

Fuel Pump and Filter Clogging (especially on high-mileage units)

Occasional · medium severity
Typical onset: 100,000-180,000 mi
Symptoms: Hard starting after sitting, especially in hot weather, Hesitation or stumble during acceleration, Engine dies at idle or under load, Fuel pressure drops below spec during testing
Fix: In-tank fuel pump wears out, and the non-serviceable filter inside the pump module clogs with debris from old gas tanks. Requires dropping tank and full pump module replacement (2.5-3 hours). The Hemi cars are particularly sensitive to weak fuel pressure.
Estimated cost: $600-900

ABS Module Failure and False Activation

Occasional · medium severity
Symptoms: ABS and traction control warning lights on dash, ABS activates during normal braking on dry pavement, Pulsing brake pedal at low speeds, Complete loss of ABS function
Fix: The Bosch 5.7 ABS module fails internally, sometimes from corrosion. Covered by recall for some VINs, but many fall outside the range. Module replacement requires programming (2 hours). Used modules need VIN flash. Some owners report intermittent issues that dealers can't replicate until full failure occurs.
Estimated cost: $800-1,400

3.5L V6 Timing Chain Tensioner and Guide Wear

Occasional · high severity
Typical onset: 120,000-180,000 mi
Symptoms: Rattling noise on cold start that disappears after 10-20 seconds, Check engine light with cam/crank correlation codes, Rough idle or misfire that comes and goes, Catastrophic timing failure if ignored
Fix: Plastic timing chain guides and hydraulic tensioners wear, allowing chain slap. If caught early, tensioner and guide replacement can be done without full teardown (6-8 hours). If chain jumps, valve damage occurs requiring head work (12-16 hours). The 3.5L is otherwise solid, but this is the Achilles heel.
Estimated cost: $1,200-3,500
Owner tips
  • Avoid 2.7L V6 models entirely — buy the 3.5L or Hemi instead, they're worth the search
  • Install an external transmission cooler immediately on any used purchase, bypass the factory radiator cooler
  • Check transmission fluid color and shifter tightness during pre-purchase inspection — pink fluid means walk away
  • Hemi engines are bulletproof if oil is changed every 5,000 miles; they'll run 250k+ easily
Buy a 3.5L or 5.7L Hemi model with service records showing the transmission cooler was bypassed — avoid the 2.7L like the plague, and expect to spend $500 on preventive trans cooling immediately.
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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