1986 CHEVROLET CAMARO

Typical onset: 80,000-140,000 mi

Symptoms: Slipping between 3rd and 4th gear (overdrive), No 4th gear engagement or drops out under load, Burned transmission fluid smell, Delayed or harsh 1-2 shifts

Fix: The 700-R4 behind V8s is notorious for overdrive clutch pack and sun shell failures. Rebuild requires 8-12 hours labor, plus upgraded hard parts (better sun shell, shift kit). Many shops recommend full rebuild over band-aid fixes since these units run hot.

Estimated cost: $1,800-2,800

Typical onset: 70,000-120,000 mi

Symptoms: Transmission fluid puddles under front of car, Fluid level drops rapidly, Overheating transmission (fluid burns), Visible rust/corrosion on steel cooler lines at radiator

Fix: Steel cooler lines rust through where they connect to the radiator, especially in salt states. If ignored, transmission starves for fluid and grenades. Replace both lines and check radiator-mounted cooler for internal leaks. 2-3 hours labor. Do NOT patch with rubber hose—it will blow out.

Estimated cost: $250-450

Typical onset: 90,000-150,000 mi

Symptoms: Oil dripping from bellhousing area, Oil spots on driveway after sitting overnight, Clutch contamination (manual trans) causing slip, Low oil level despite no visible front leaks

Fix: The 305 and 350 small-blocks leak from the two-piece rear main seal as mileage climbs. Requires transmission removal—7-9 hours labor on V8 automatics, slightly less on manuals. Resurfacing the flywheel/flexplate contact area is critical. Always replace the oil pan gasket while you're in there.

Estimated cost: $800-1,400

Symptoms: Hesitation or stumble on acceleration, Surging at steady highway speeds, Hard starting when warm, Black smoke or terrible fuel economy

Fix: The Rochester Quadrajet on carbureted 305s needs periodic rebuilds or replacement. Accelerator pump diaphragms fail, power valve tears, and internal passages clog. Rebuild kits run $60-90, labor 3-4 hours if someone knows Q-jets. Many owners swap to Edelbrock 1406 for reliability.

Estimated cost: $350-650

Typical onset: 80,000-130,000 mi

Symptoms: Clunk when shifting from Park to Drive or Reverse, Excessive drivetrain vibration at idle in gear, Visible rubber deterioration or separation on crossmember mount

Fix: The rubber transmission crossmember mount fatigues and tears, especially on V8 cars. Jack up transmission slightly, unbolt crossmember, swap mount. 1-1.5 hours labor. Cheap fix that drastically improves shift feel and reduces clunking.

Estimated cost: $120-220

Typical onset: 60,000-110,000 mi

Symptoms: Engine cranks but won't start, Sputtering or dying under load, Fuel starvation at highway speeds, Visible fuel leak at pump mounting area on block

Fix: Carbureted engines use engine-driven mechanical pumps that fail from diaphragm rupture or pushrod wear. TPI cars have in-tank electric pumps that also fail but are harder to diagnose. Mechanical pump swap is 1.5-2 hours; in-tank electric is 3-4 hours (drop tank).

Estimated cost: $200-400 mechanical, $500-800 electric

Typical onset: 130,000-200,000 mi

Symptoms: Blue smoke on startup or deceleration, Burning 1+ quart of oil every 500-800 miles, Loss of compression and power, Fouled spark plugs

Fix: The 2.8L V6 is notorious for ring wear; V8s last longer but eventually blow by. Requires engine rebuild or long-block replacement. In-chassis rebuild: 20-30 hours labor. Out-and-replace with reman long block: 12-16 hours. Budget pistons, rings, bearings, gaskets, machine work.

Estimated cost: $2,500-4,500