1972 PLYMOUTH SATELLITE

225ci I6RWDAUTOMATICgas
5-Year Cost of Ownership
$37,171 maintenance + known platform issues
~$7,434/yr · 620¢/mile equivalent · $31,743 maintenance + $4,728 expected platform issues
Compare this engine
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318ci V8
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340ci V8
vs
360ci V8
Common Problems & Known Issues

The 1972 Plymouth Satellite is a solid B-body platform with legendary drivetrain durability, but suffers from aging infrastructure issues typical of 50+ year-old Mopars—particularly torsion bar suspension wear, electrical gremlins, and corrosion in critical structural areas.

Torsion Bar Anchor Corrosion and Lower Control Arm Failure

Common · high severity
Symptoms: Sagging front end on one or both sides, Clunking over bumps from lower control arm bushings, Visible rust perforation around rear torsion bar anchor crossmember, Uneven tire wear and wandering steering
Fix: The rear torsion bar crossmember rusts from the inside out—often requires welding in replacement sections or complete fabricated crossmember. Lower control arm bushings are typically shot after decades. Expect 8-12 hours labor for crossmember repair plus 4-6 hours for complete LCA rebuild with new bushings and ball joints. Welding skills required.
Estimated cost: $1,200-2,800

Timing Chain Stretch and Gear Wear (318/340/360 V8s)

Common · medium severity
Typical onset: 80,000-150,000 mi
Symptoms: Rattling noise on cold startup that fades after 30-60 seconds, Retarded ignition timing that keeps drifting despite distributor adjustments, Hard starting when hot, Loss of power and poor fuel economy
Fix: Mopar timing sets from this era used nylon-coated cam gears that deteriorate, and chains stretch. Requires front accessory removal, timing cover, and complete chain/gear replacement. Use double-roller aftermarket set. 4-6 hours labor for experienced tech. The 225 Slant-Six has a much longer service life on timing components.
Estimated cost: $450-850

Firewall-to-Cowl and Torque Box Rust Perforation

Common · high severity
Symptoms: Water leaking into passenger footwell or behind kick panels, Visible rust holes where cowl meets firewall at windshield base, Cracking or flaking paint along rear frame rail to quarter panel junction, Soft or crusty metal in torque boxes behind front wheels
Fix: These rot from trapped moisture and poor factory drainage. Torque boxes are structural—must be cut out and replaced with patch panels or fabricated sections, requires welding. Cowl work involves windshield removal. 16-24 hours labor depending on extent. Parts availability is decent through aftermarket.
Estimated cost: $2,200-4,500

Carburetor Circuit Board Corrosion (Carter BBD, Holley 2bbl)

Common · medium severity
Symptoms: Stumbling and hesitation on acceleration, Black smoke from tailpipe under load, Difficulty maintaining idle when warm, Fuel weeping from throttle shaft or bowl gaskets
Fix: Original carbs suffer from internal corrosion, warped throttle shafts, and deteriorated accelerator pump circuits. Rebuild kits help but worn bodies often need replacement. Expect 3-4 hours for proper rebuild or 2 hours to swap on a reman unit. Holley 2300 swaps are popular and simple.
Estimated cost: $280-650

Steering Box Slop and Coupler Wear

Occasional · medium severity
Typical onset: 70,000-120,000 mi
Symptoms: Excessive play at steering wheel (more than 2 inches free movement), Clunking when changing direction at low speed, Wandering on highway requiring constant correction, Visible wear in rubber coupler between column and steering box
Fix: Manual steering boxes can be adjusted but often need rebuild or replacement after decades. Power steering boxes leak and develop internal wear. Rubber steering coupler deteriorates and splits. Box rebuild 4-6 hours, coupler replacement 1.5 hours. Alignment required after box replacement.
Estimated cost: $450-1,200

Wiper Linkage and Pivot Seizure

Occasional · low severity
Symptoms: Wipers move sluggishly or stop in mid-stroke, Wiper motor runs but blades don't move or move erratically, Grinding noise from cowl area when wipers activated, One wiper works while other is stuck
Fix: Wiper pivots corrode and bind from moisture intrusion through cowl grilles. Linkage bushings dry out. Requires cowl grille removal, pivot disassembly, cleaning, and relubrication. Sometimes pivots need complete replacement. 3-4 hours labor. Motor itself usually survives.
Estimated cost: $220-500

Bulkhead Connector Meltdown and Charging Issues

Occasional · medium severity
Symptoms: Ammeter shows constant discharge or wildly fluctuates, Burning smell from firewall area, Melted or discolored plastic at firewall bulkhead connector, Intermittent electrical failures (gauges, lights, accessories), Battery repeatedly goes dead
Fix: The single-point bulkhead connector carries all charging current and overheats with corroded terminals. Requires cleaning all terminals, sometimes complete connector replacement, and often a MAD (Modified Ammeter Delete) wiring bypass to prevent recurrence. Also check voltage regulator. 2-4 hours labor depending on extent of damage and whether bypass is installed.
Estimated cost: $180-450
Owner tips
  • Inspect torque boxes and torsion bar crossmember before purchase—rust here is expensive and often a deal-breaker
  • Replace timing chain preventively on any V8 if history is unknown; it's cheap insurance against valve-to-piston contact
  • Flush and lubricate torsion bars annually; spray inside the rear hex sockets with fluid film to slow corrosion
  • Upgrade to electronic ignition (Mopar Performance kit bolts in) for better starting and drivability—best $150 you'll spend
  • Keep cowl drains clear and consider undercoating the torque boxes from inside if doing any floor work
Absolutely buy one if the body structure is solid—mechanicals are bulletproof and cheap to fix, but rust repair will exceed the car's value quickly on a rotted example.
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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