2009 CHEVROLET EXPRESS

Typical onset: 80,000-150,000 mi

Symptoms: Ticking or tapping noise from valve train, often on cold start, Check Engine Light with P0300-series misfires or P0521 oil pressure codes, Rough idle or cylinder deactivation at highway speed, Metal shavings in oil or collapsed lifters on teardown

Fix: Requires camshaft replacement, all 16 lifters, often pushrods, and sometimes head work if a collapsed lifter damaged a rocker. AFM delete kit recommended during repair. 18-25 labor hours for cam/lifter job.

Estimated cost: $3,500-6,000

Typical onset: 90,000-140,000 mi

Symptoms: Coolant loss with no visible external leak, White smoke from exhaust on cold start, Rough idle or misfire codes from coolant entering cylinders, Milky oil if leak is severe

Fix: Replace lower intake manifold gaskets (Felpro premium set recommended). On 6.0L, also inspect and often replace plastic coolant crossover and throttle body gaskets. 6-8 hours labor.

Estimated cost: $800-1,400

Typical onset: 100,000-180,000 mi

Symptoms: Transmission fluid leaking at radiator connections or along frame-mounted lines, Transmission slipping or delayed engagement after sitting, Chocolate milk appearance in coolant overflow (cooler breach), Burnt ATF smell or pink residue under radiator

Fix: Replace rusted steel cooler lines with pre-bent or custom stainless. If internal radiator cooler failed, flush entire cooling system, replace radiator, and service transmission (often needs rebuild if coolant contaminated ATF). Line replacement alone: 3-5 hours. Full cooler breach repair with trans service: 8-12 hours.

Estimated cost: $600-1,200 (lines only); $2,500-4,500 (if trans damaged)

Typical onset: 150,000-200,000 mi

Symptoms: Slipping or flare on 3-4 upshift under load, Harsh 4-3 downshift or no engine braking in 3rd, Burnt transmission fluid smell, P0741 or P0734 trouble codes

Fix: Transmission rebuild focusing on 3-4 clutch pack, often includes new solenoids, pump wear assessment, and valve body cleaning. 10-14 hours labor for R&R and rebuild.

Estimated cost: $2,200-3,800

Typical onset: 100,000-160,000 mi

Symptoms: Ticking or exhaust leak noise from engine bay, worse on acceleration, Visible soot streaks on manifold or head, Broken stud visible when inspecting from underneath, Smell of exhaust in cabin or under hood

Fix: Drill out broken studs, re-tap or install Time-Sert inserts in aluminum heads. If manifold cracked, replace with heavy-duty aftermarket or OEM. 4-7 hours per side depending on stud extraction difficulty.

Estimated cost: $600-1,400 per side

Typical onset: 120,000-180,000 mi

Symptoms: No-start or extended crank time, especially when hot, Sputtering or loss of power at highway speed, Erratic or stuck fuel gauge, Whining noise from rear of van when key is on

Fix: Drop 31-gallon midship tank (or dual tanks on extended models), replace pump module and strainer. Recommend fuel filter replacement at same time. 3-5 hours labor for single tank.

Estimated cost: $650-1,100

Symptoms: Clicking or ticking noise from dash, often on startup or temp change, Heat blowing on one side, cold on other (dual-zone), Air only from defrost regardless of mode selection, Temperature control unresponsive or stuck at one extreme

Fix: Replace failed actuator(s) behind glove box or under dash center. Mode door actuator requires more disassembly. 1.5-3 hours depending on which actuator and accessibility.

Estimated cost: $250-600

Typical onset: 100,000-160,000 mi

Symptoms: Clunking from rear suspension over bumps or when reversing, Rear end sway or wander at highway speed, Visible cracking or separation in rubber shackle bushings, Uneven tire wear on rear tires

Fix: Replace leaf spring shackles and bushings, inspect U-bolts for torque. Often done as preventive maintenance on high-mileage cargo vans. 2-4 hours for both sides.

Estimated cost: $400-750