2022 CHEVROLET COLORADO ZR2

Typical onset: 30,000-80,000 mi

Symptoms: excessive oil consumption before failure, metallic knocking from crankcase, loss of power under load, check engine light with low oil pressure codes

Fix: Complete engine replacement or rebuild required. Connecting rod bearing failures lead to spun bearings, scored crankshafts, and piston damage. Short block replacement is 24-30 hours labor, full rebuild adds another 8-12 hours for machine work coordination and assembly.

Estimated cost: $8,500-15,000

Typical onset: 40,000-70,000 mi

Symptoms: transmission fluid leaking near radiator, overheating transmission temps, burnt fluid smell, slipping shifts when hot

Fix: Cooler lines corrode at frame contact points or crack from chassis flex during off-roading. Replace both lines preventatively when one fails. 2.5-4 hours labor depending on 4WD component removal needed.

Estimated cost: $600-1,200

Typical onset: 35,000-60,000 mi

Symptoms: clunking when shifting from park to drive, excessive vibration at idle, visible torn rubber on mount inspection, transmission movement during acceleration

Fix: Factory mount rubber separates from bracket, especially on trucks that see trail use or heavy towing. Mount replacement is straightforward but requires transmission support. 1.5-2.5 hours labor.

Estimated cost: $350-650

Symptoms: hard starting when cold, loss of power on acceleration, rough idle, fuel system fault codes

Fix: Poor fuel quality or water contamination clogs filter well before scheduled interval. Some trucks need filter changes every 10,000-15,000 mi instead of factory 22,500 mi. Includes priming procedure, 0.8-1.2 hours labor.

Estimated cost: $180-320

Typical onset: 50,000-90,000 mi

Symptoms: excessive crankcase pressure, oil consumption over 1 quart per 1,000 miles, blue smoke on startup, oil in intake system

Fix: Ring land cracks or ring flutter causes blow-by and oil consumption. Requires engine disassembly, new pistons and rings, cylinder honing. In-chassis overhaul is 28-35 hours, engine removal adds 6-8 hours.

Estimated cost: $7,000-12,000

Typical onset: 60,000-100,000 mi

Symptoms: slight coolant smell from exhaust, minor coolant loss with no visible leaks, white residue on spark plugs, pressure test shows slow leak

Fix: V6 models occasionally develop external head gasket seepage rather than catastrophic failure. Both heads should be done together. 10-14 hours labor including coolant flush and new plugs.

Estimated cost: $2,800-4,200