Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

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 starter lead nut.
Tighten

Tighten the starter lead nut to 9 N.m (80 lb in).

Fig 1: Install Positive Battery Cable & Clip Nut
Courtesy of GENERAL MOTORS CORP.
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 starter lead nut.
Tighten

Tighten the nut to 9 N.m (80 lb in).

Fig 2: Install Positive Battery Cable & Clips
Courtesy of GENERAL MOTORS CORP.
If equipped with a 4.8L, 5.3L, or 6.0L engine, install the battery cable bracket and bolt.
Tighten

Tighten the bolt to 25 N.m (18 lb ft).

Fig 3: Install Battery Cable Bracket & Bolt
Courtesy of GENERAL MOTORS CORP.
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.

Fig 4: Install Positive Battery Cable Channel Bolt
Courtesy of GENERAL MOTORS CORP.
If equipped with a 8.1L engine, install the negative cable clip to the positive cable clip.

Fig 5: Install Negative Cable Clip To Positive Cable Clip
Courtesy of GENERAL MOTORS CORP.
If equipped with a 4.8L, 5.3L, 6.0L engine, install the negative cable clip to the positive cable clip.

Fig 6: Install Negative Cable Clip To Positive Cable Clip
Courtesy of GENERAL MOTORS CORP.
Install the positive 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, AND 6.0L ENGINES) or ENGINE SIGHT SHIELD REPLACEMENT (6.0L ENGINE W/RPOS Y91 AND Z88) .

Fig 7: Install Positive Cable
Courtesy of GENERAL MOTORS CORP.
Tighten the positive cable bolt at the UBEC.
Tighten

Tighten the bolt to 9 N.m (80 lb in).

Fig 8: Tighten Positive Cable Bolt
Courtesy of GENERAL MOTORS CORP.
Install the positive battery cable.
Tighten 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) .

Fig 9: Install Positive Battery Cable
Courtesy of GENERAL MOTORS CORP.