1980 CHEVROLET CAMARO

Typical onset: 80,000-140,000 mi

Symptoms: Slipping between gears, especially 1-2 shift, Delayed engagement when shifting into Drive or Reverse, Burnt transmission fluid smell, dark or metallic fluid, Whining or grinding noises during acceleration

Fix: The TH200 (base six-cylinder) is notoriously weak and often needs a full rebuild or replacement. TH350 behind V8s lasts longer but still fails from worn clutch packs and pump issues. Rebuild takes 8-12 hours including R&R, converter replacement recommended. Many shops swap in a rebuilt TH350 or upgrade to a 700R4 overdrive.

Estimated cost: $1,800-3,200

Typical onset: 100,000-150,000 mi

Symptoms: Blue smoke on startup or acceleration, Burning through a quart of oil every 500-800 miles, Fouled spark plugs causing misfires, Low compression readings across multiple cylinders

Fix: The 305 V8 especially develops ring wear and cylinder glazing. Proper fix requires pulling the engine, honing cylinders, and installing new rings—basically a short block rebuild. Takes 18-24 hours for complete tear-down, machine work, and reassembly. Many owners opt for a long block replacement or 350 swap instead of rebuilding a tired 305.

Estimated cost: $2,500-4,800

Typical onset: 60,000-120,000 mi

Symptoms: Clunking when shifting from Park to Drive or Reverse, Excessive drivetrain vibration at highway speeds, Visible sagging or torn rubber in transmission mount, Grinding or rattling over bumps from loose crossmember

Fix: The rubber transmission mount deteriorates and the crossmember bolt holes elongate or rust through on these unibody cars. Mount replacement is 1.5-2 hours, but if the crossmember itself is compromised, welding reinforcement plates adds another 2-4 hours. Inspect carefully during any transmission work.

Estimated cost: $250-800

Typical onset: 120,000-180,000 mi

Symptoms: Deep knocking noise from lower engine that increases with RPM, Rapidly dropping oil pressure at idle, Metallic debris in oil filter or pan, Sudden catastrophic engine seizure if ignored

Fix: Poor oil change intervals and marginal factory bearing clearances lead to spun bearings, especially on higher-mileage 305s. Requires full engine removal, crank inspection/grinding, and complete bottom-end rebuild. Total time is 20-28 hours including machine shop work. At this point, most shops recommend sourcing a replacement engine rather than rebuilding.

Estimated cost: $3,500-6,000

Symptoms: Hard starting when hot or after sitting, Rough idle, stalling at stop lights, Black smoke and poor fuel economy, Flooding or fuel smell in engine bay

Fix: The Rochester carburetors (E2SE, M4MC) on these cars are notoriously finicky after 40+ years. Ethanol fuel degrades internal gaskets and passages. A proper rebuild kit and adjustment takes 3-4 hours for someone experienced, but most shadetree mechanics chase their tails for weeks. Clogged fuel filters compound the problem. Many owners convert to Edelbrock or Holley carbs for reliability.

Estimated cost: $400-900

Symptoms: Visible rust perforation in rear torque boxes behind rear wheels, Sagging rear suspension, misaligned rear axle, Cracking sounds from rear of car over bumps, Failed safety inspection due to structural rust

Fix: F-body unibody construction concentrates stress at the rear torque boxes and subframe connectors rust from the inside out in salt states. Proper repair requires cutting out rusted sections and welding in new metal—10-16 hours if caught early, but often the entire floor is compromised. This is a deal-breaker rust issue; inspect thoroughly before purchase.

Estimated cost: $1,200-3,500