1971 DODGE CHARGER

Typical onset: 80,000-120,000 mi or unknown mileage cars

Symptoms: Hard starting especially when warm, Backfiring through carburetor, Loss of power at highway speeds, Rattling from front of engine on cold start, Erratic timing that won't stay adjusted

Fix: Replace timing chain, gears, and tensioner as a complete kit. On small-blocks (318/340/360) expect 4-6 hours with radiator removal. Big-blocks (383/400/440) need 6-8 hours due to tighter engine bay. Original single-row chains are weak; upgrade to double-row. Hemi requires specialized knowledge, add 2-3 hours.

Estimated cost: $600-1,400

Symptoms: Rough idle that varies with temperature, Flooding or fuel leaks from carb base, Hesitation on acceleration, Black smoke from tailpipe, Won't start when hot (vapor lock related)

Fix: Original carbs have dried gaskets, warped bases, and worn accelerator pumps after 50 years. Full rebuild kit plus labor runs 3-4 hours for single carb, 5-6 for triple-carb setups on six-packs. Many owners swap to Edelbrock or new Holley for reliability. Vapor lock often requires fuel line rerouting and heat shields.

Estimated cost: $450-900

Symptoms: Front end sits lower on one or both sides, Clunking over bumps, Wandering steering and poor handling, Uneven tire wear on inside edges, Body roll in turns excessive even for a muscle car

Fix: Torsion bars rarely break but lose tension over decades. Adjusting ride height is free but masks worn bushings. Full front rebuild includes upper/lower control arm bushings, strut rod bushings, sway bar links, and potentially ball joints. Good shops need 8-10 hours for complete job. Alignment mandatory after.

Estimated cost: $1,200-2,200

Symptoms: Intermittent no-start condition, Gauges stop working randomly, Headlights dim or flicker, Burning smell near firewall, Melted wiring insulation at firewall pass-through

Fix: The bulkhead connector (firewall pass-through) develops high resistance from corrosion and overheats. This is a FIRE RISK. Proper fix involves disassembly, cleaning all terminals, dielectric grease, or bypass with new wiring. Dash removal often needed for gauge circuit work. Expect 4-6 hours for thorough repair. Band-aid fixes fail repeatedly.

Estimated cost: $500-1,000

Symptoms: Fuel gauge reads empty or full constantly, Rust particles clogging fuel filter repeatedly, Engine stalls after 15-20 minutes (pickup tube clogged), Fuel smell in trunk area, Visible corrosion on tank exterior

Fix: Original tanks rust from inside out, especially if car sat. Tank removal requires dropping rear axle or creative exhaust work (2-3 hours removal). New sending unit usually needed ($150-250). Replacement tanks run $300-600 depending on original vs aftermarket. Installation another 2-3 hours plus fuel system flush.

Estimated cost: $700-1,400

Typical onset: 100,000+ mi or heavy use

Symptoms: Rear axle shifting side-to-side under acceleration, Clunking when hitting bumps at rear, Rear sits lower than factory spec, Axle hop during hard launches, Worn or cracked spring eyes visible

Fix: Heavy-duty use or age causes springs to flatten and shackles to elongate. Replacement requires supporting axle, pressing out old bushings, and installing new springs with polyurethane or rubber bushings. Takes 4-5 hours per side. High-performance owners often upgrade to XHD springs. U-bolt torque critical to prevent axle wrap.

Estimated cost: $800-1,600

Typical onset: 80,000+ mi

Symptoms: Power steering fluid leaking at box or hoses, Excessive play at steering wheel (more than 2 inches), Groaning noise when turning at low speed, Wandering on highway requiring constant correction, Hard steering when cold

Fix: Original Chrysler boxes develop seal leaks and internal wear. Rebuilt boxes run $200-400 exchange. Removal and installation takes 3-4 hours including flush and bleeding system. Aftermarket quick-ratio boxes popular upgrade. Check coupler at column base for wear simultaneously — common failure point.

Estimated cost: $450-800