Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 GMC Yukon AT4FACTORY OEM SERVICE PROCEDURE
Fuel Pressure Regulator: Remove & Replace
WARNING: This page is about the Yukon Denali, 3.0L Eng VIN T, 4WD, which is a different variant/trim than selected.
FUEL INJECTION - ELECTRONIC, DIESEL
| Applies To | Note | Standard Hours | Warranty Hours | Skill Level |
|---|---|---|---|---|
| 3.0L Eng, #2,Fuel Rail | Serviced in Fuel Rail. Includes: R&I Wiper Link Assembly & Cowl Top Panel. | 6.8 | B | |
| 3.0L Eng,4WD, #1 or #3,High Pressure Fuel Pump,w/Air Suspension | Serviced in Fuel Pump. Includes: R&I Wiper Link Assembly & Cowl Top Panel. Includes: R&I Charge Air Cooler. Includes: R&I Fender Liners. Includes: R&I Catalytic Converter. Includes: R&I Starter Assembly. Includes: R&I Propeller Shaft. Includes: R&I Transfer Case Assembly. Includes: R&I Transmission Assembly. Includes: Check and adjust Transmission Fluid level with fluid temperature within parameters. Includes: Drain and Refill Air Suspension System. Includes: Additional time for use of scan tool to perform this procedure. Includes: Drain and refill Cooling System. | 20.4 | B | |
| 3.0L Eng,4WD, #1 or #3,High Pressure Fuel Pump,w/o Air Suspension | Serviced in Fuel Pump. Includes: R&I Wiper Link Assembly & Cowl Top Panel. Includes: R&I Charge Air Cooler. Includes: R&I Fender Liners. Includes: R&I Catalytic Converter. Includes: R&I Starter Assembly. Includes: R&I Propeller Shaft. Includes: R&I Transfer Case Assembly. Includes: R&I Transmission Assembly. Includes: Check and adjust Transmission Fluid level with fluid temperature within parameters. Includes: Drain and refill Cooling System. | 20.0 | B | |
| Additional Procedure: FUEL PRESSURE REGULATOR: Remove & Replace: | ||||
| 3.0L Eng, Where Skid Plate interferes add | 0.2 | B | ||
| Combination Procedure: FUEL INJECTION SYSTEM: Reset: | ||||
| 3.0L Eng, Fuel System Reset Procedure | Includes: Additional time for use of scan tool to perform this procedure. | 0.2 | B | |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.