Case file · CHEVROLET-SILVERADO-1500-2019-2024 · Field document

Chevrolet Silverado 1500 2019–present · Pre-purchase checklist

Bring this to the inspection. Every check below is specific to this generation's documented failure modes — not generic used-car advice.

1. Check 01

   Run the VIN through GM's recall lookup. On any 2021–2024 6.2L, do not buy without proof the 25V-274 engine inspection (or replacement) was completed. On a 2019–2021 6.2L, know it was never recalled but is now under NHTSA investigation EA25007 — same bottom-end failure mode.

2. Check 02

   Cold-start any V8 and listen for ticking or a misfire in the first 30 seconds — the classic collapsed-lifter tell. One cylinder misfiring on a 5.3/6.2 is a lifter until proven otherwise.

3. Check 03

   Ask for service records showing lifter or camshaft work. A truck that already had the job done with updated parts is arguably safer than one that never failed.

4. Check 04

   Test-drive at light throttle between 25–45 mph on the highway and feel for a rumble-strip vibration — torque converter clutch shudder on 8-speed trucks.

5. Check 05

   On a 3.0L Duramax, note how long it cranks before firing when cold. Extended cranking on a 2020–2022 LM2 points to the known camshaft reluctor/long-crank issue.

6. Check 06

   On a 2020–early 2021 3.0L Duramax specifically, ask for service records showing the redesigned timing chain (GM part 55515943) or listen for a rattle/slack noise at cold startup — a pre-redesign chain that stretches and jumps timing is a documented $8,000–$10,000 repair.

7. Check 07

   On a diesel, ask whether the oil-pump belt was done — GM's factory interval is 150,000 mi on 2020–2022 LM2 trucks, extended to 200,000 mi on 2023+ LZ0 trucks. Either way it's a transmission-out job and a real negotiating chip.

8. Check 08

   On a 2.7L turbo, check for coolant loss, white exhaust smoke, and oil level — early builds have head-gasket and oil-consumption reports.

9. Check 09

   Verify 4WD engages and disengages cleanly through all modes during the test drive, and watch for a 'Service 4WD' message.