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.
Installation Procedure
- If equipped with a 8.1L engine, install the positive battery cable.
- Install the positive cable to the engine harness clip.NOTE: Refer to FASTENER NOTICE .
- Install the positive cable clip nut.
Tighten: Tighten the nut to 8 N.m (71 lb in).
- Install the positive cable to the starter.
- Install the positive cable nut.
Tighten: Tighten the nut to 9 N.m (80 lb in).
- If equipped with a 4.8L, 5.3L, or 6.0L engine, install the positive battery cable.
- Install the positive cable to the clip on the oil pan.
- Install the positive cable clip to the clip on the oil pan.
- Install the positive cable to the starter.
- Install the positive cable nut (1).
Tighten: Tighten the nut to 9 N.m (80 lb in).
- If equipped with a 4.8L, 5.3L, or 6.0L engine, install the battery cable bracket and bolt to the power steering pump.
Tighten: Tighten the bolt to 25 N.m (18 lb ft).
- Install the positive battery cable to the channel.
- Slide the channel pin into the oil pan tab.
- Install the positive battery cable channel bolt.
Tighten: Tighten the bolt to 12 N.m (106 lb in).
- Lower the vehicle.
- If equipped with a 8.1L engine, install the negative cable clip to the positive cable clip.
- If equipped with a 4.8L, 5.3L, or 6.0L engine, install the negative cable clip to the positive cable clip.
- Install the positive battery cable (1) into the junction block.
- Snap the junction block cover closed.
- If necessary, install the engine sight shield. Refer to ENGINE SIGHT SHIELD REPLACEMENT (4.8L, 5.3L, or ENGINE SIGHT SHIELD REPLACEMENT (6.0L (LQ9)) .
- Tighten the positive cable bolt at the UBEC.
Tighten: Tighten the bolt to 9 N.m (80 lb in).
- Connect the positive battery cable.
Tighten: Tighten the bolt to 17 N.m (13 lb ft).
- Snap the positive battery cable cap closed.
- Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) .
NO RELATED
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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.