Bad fuel injectors cause misfires, white smoke, and fuel in the oil. This guide shows how to test, remove, and replace injectors on the 6.7L Cummins.
engine
🚗 Dodge Ram 2500
Hard
How to Fix Dodge Ram 2500 Fuel Injector Failure
Red Rocket
·
August 7, 2026
·
⏱ 5-7 hours
·
2007-2018 Dodge Ram 2500
0
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Step-by-Step Instructions
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1
Test injector return flow to identify the failing cylinder.
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2
Remove the fuel rail and injector hold-down clamps.
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3
Pull each injector with the puller tool.
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4
Install new injectors with new copper washers.
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5
Torque to spec and bleed the high-pressure system.
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6
Run a leak-down test to confirm.
Tools & Parts Needed
- 🔧 Injector puller, New injectors, Diesel leak-down tester, Torque wrench
Frequently Asked Questions
How long does this fix take?
5-7 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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