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.
2008 Jeep Commander 4WD V6-3.7LFACTORY OEM SERVICE PROCEDURE
Fuel Pump Relay
Component ID: 279
Component : RELAY-FUEL PUMP
Connector:
Name : RELAY-FUEL PUMP
Color :
# of pins : 0
30 A916 16RD/GY FUSED B(+)
85 K31 20BR FUEL PUMP RELAY CONTROL
86 A15 16RD/TN FUSED ASD RELAY OUTPUT
86 F942 20PK/LG FUSED IGNITION SWITCH OUTPUT (RUN-START)
87 A109 16OR/RD FUEL PUMP RELAY OUTPUT
87A - -
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.
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