AFM/DFM lifter failure causing a tick, misfire and lost cylinder.
- Typically appears
- 80,000+ miles
- What to inspect
- Listen for lifter tick and check for misfire codes; ask about any lifter work.

The 4th-gen Tahoe is a capable full-size SUV, but the 5.3L V8's Active Fuel Management lifters are the critical check.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
The most commonly reported faults on the 2015–2020 Chevrolet Tahoe are AFM/DFM lifter failure causing a tick, misfire and lost cylinder, Oil consumption linked to AFM and 6-/8-speed shift quality and shudder. Of the documented issues, 1 rated critical and 1 rated high · these are the ones worth inspecting first. Full inspection points, onset mileage and what to check are listed below.
Based on the documented faults on this page for the Chevrolet Tahoe.
Guidance only · reflects reported patterns, not a specific car's condition.
AFM/DFM lifter failure causing a tick, misfire and lost cylinder.
Oil consumption linked to AFM.
6-/8-speed shift quality and shudder.
Cracked dashboard (recall/campaign).
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Check this exact carStrong overall, but the 5.3L AFM lifter failure is a well-known, expensive risk.
Active Fuel Management lifters can collapse, causing misfires; disabling AFM is a common preventative.
AFM engines can consume oil; monitor the level closely.
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.