The 5.3L Vortec’s Active Fuel Management lifters fail and ruin the camshaft. Delete AFM for reliability and power.
engine
🚗 Chevrolet Silverado 1500
Moderate
How to Fix Chevrolet Silverado Active Fuel Management
Red Rocket
·
August 7, 2026
·
⏱ 4-6 hours
·
2007-2014 Chevrolet Silverado 1500
0
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Step-by-Step Instructions
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1
Diagnose AFM lifter failure by misfire codes.
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2
Remove the intake and valve covers.
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3
Replace the AFM lifters with standard lifters.
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4
Install the delete camshaft and valley cover.
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5
Tune the ECM to disable AFM.
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6
Refill oil and test.
Tools & Parts Needed
- 🔧 AFM delete kit, New lifters, Camshaft, Oil pump
Frequently Asked Questions
How long does this fix take?
4-6 hours
Do I need special tools?
Yes — see the Tools & Parts list above.
Is this covered under warranty?
Check your vehicle warranty. Some repairs may be covered, especially if the issue is a known defect.
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