2015 CHEVROLET CAMARO ZL1

Typical onset: 40,000-80,000 mi

Symptoms: transmission temp spikes on gauge, slipping or delayed shifts under load, metal shavings in trans fluid, limp mode activation

Fix: Factory cooler is undersized for the ZL1's power output, especially if tracked. Requires dropping transmission to access cooler lines and replace cooler assembly. 6-8 hours labor. Many owners upgrade to aftermarket auxiliary cooler during repair.

Estimated cost: $1,200-2,200

Typical onset: 60,000-100,000 mi

Symptoms: metallic knocking at idle that increases with RPM, low oil pressure warnings, metal debris in oil filter, sudden catastrophic failure with loss of power

Fix: LSA engines pushed hard or modified without proper tuning can spin bearings—rod bearings especially on cylinders 1 and 7. Requires full engine teardown, crank inspection/machining, new bearings, possibly new rods and pistons if damaged. 25-35 hours labor for proper rebuild, plus machine shop time.

Estimated cost: $6,500-12,000

Typical onset: 50,000-90,000 mi

Symptoms: harsh clunk when shifting from park to drive, excessive drivetrain movement during hard acceleration, vibration through shifter, visible tearing in rubber mount

Fix: The factory trans mount can't handle repeated hard launches. Mount collapses and allows excessive movement. Straightforward replacement, 1.5-2 hours labor. Strongly recommend upgrading to polyurethane aftermarket unit.

Estimated cost: $250-500

Symptoms: white smoke from exhaust, coolant loss with no visible leaks, overheating under boost, milky oil on dipstick or cap, rough idle and misfires

Fix: Stock head bolts and gaskets can fail on cars running higher boost or aftermarket pulley swaps without upgraded ARP studs. Requires head removal, resurface, new gaskets, studs recommended. 18-24 hours labor for both sides.

Estimated cost: $3,500-5,500

Typical onset: 70,000-110,000 mi

Symptoms: whining or grinding noise from supercharger area, noise increases with RPM, loss of boost pressure, metal shavings in supercharger oil

Fix: The Eaton TVS snout bearings wear over time, especially with pulley upgrades increasing belt tension. Requires supercharger removal, bearing replacement or full rebuild. 8-12 hours labor if just bearings, more for full rebuild.

Estimated cost: $1,800-3,500

Typical onset: 80,000-120,000 mi

Symptoms: hard starting when hot, fuel pressure dropping under load, rough idle or hesitation, check engine light with lean codes

Fix: Fuel pump and filter wear, exacerbated by ethanol content. Filter is in-tank on these, so fuel tank drop required. Might as well replace pump assembly while in there. 4-6 hours labor.

Estimated cost: $800-1,400