Under hood fuse box removal - tips?
#1
Drifting
Thread Starter
Under hood fuse box removal - tips?
I need to do some wiring mods and thought I'd ask to see if anyone had any tips for getting access to the bottom side of the fuse box. Last time I tried to remove it (been a couple years now) it was really difficult and didn't feel like it wanted to move at all. I threw in the towel before I broke something so I thought before I tried again I'd ask around for tips.
Thanks.
Thanks.
#3
Tech Contributor
Member Since: Dec 2003
Location: Horncastle Lincolnshire, England
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2023 C5 of the Year Finalist - Unmodified
Here's the procedure from the book but the original has pics. PM me with your E Mail and I can send you a full copy.
Underhood Electrical Center or Junction Block Replacement
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
2. Remove the positive battery cable lead nut from the junction block. Reposition the cable lead away from the junction block.
3. Remove the junction block cover.
4. Disengage the electrical cable retainers at the rear of the junction block.
5. Turn the junction block upside down and open the lower cover.
6. Loosen the bolts retaining the engine, IP, and forward lamp wiring harness connectors to the junction block.
7. Disconnect the engine wiring harness connector from the junction block.
8. Disconnect the IP wiring harness connector from the junction block.
9. Remove the junction block.
Installation Procedure
1. Connect the IP wiring harness connector to the junction block.
2. Connect the engine wiring harness connector to the junction block.
Notice
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
3. Install the underhood junction block connector bolts.
Tighten
Tighten the underhood junction block connector bolts to 7 N·m (62 lb in).
4. Turn the electrical center right side up.
5. Connect the electrical cable retainers at the rear of the junction block..
6. Install the junction block cover.
7. Install the positive battery cable lead to the junction block stud. Install the positive battery cable lead nut.
Tighten
Tighten the positive battery cable lead nut to 10 N·m (89 lb in).
8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
Underhood Electrical Center or Junction Block Replacement
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
2. Remove the positive battery cable lead nut from the junction block. Reposition the cable lead away from the junction block.
3. Remove the junction block cover.
4. Disengage the electrical cable retainers at the rear of the junction block.
5. Turn the junction block upside down and open the lower cover.
6. Loosen the bolts retaining the engine, IP, and forward lamp wiring harness connectors to the junction block.
7. Disconnect the engine wiring harness connector from the junction block.
8. Disconnect the IP wiring harness connector from the junction block.
9. Remove the junction block.
Installation Procedure
1. Connect the IP wiring harness connector to the junction block.
2. Connect the engine wiring harness connector to the junction block.
Notice
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
3. Install the underhood junction block connector bolts.
Tighten
Tighten the underhood junction block connector bolts to 7 N·m (62 lb in).
4. Turn the electrical center right side up.
5. Connect the electrical cable retainers at the rear of the junction block..
6. Install the junction block cover.
7. Install the positive battery cable lead to the junction block stud. Install the positive battery cable lead nut.
Tighten
Tighten the positive battery cable lead nut to 10 N·m (89 lb in).
8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
#4
Instructor
Here's the procedure from the book but the original has pics. PM me with your E Mail and I can send you a full copy.
Underhood Electrical Center or Junction Block Replacement
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
2. Remove the positive battery cable lead nut from the junction block. Reposition the cable lead away from the junction block.
3. Remove the junction block cover.
4. Disengage the electrical cable retainers at the rear of the junction block.
5. Turn the junction block upside down and open the lower cover.
6. Loosen the bolts retaining the engine, IP, and forward lamp wiring harness connectors to the junction block.
7. Disconnect the engine wiring harness connector from the junction block.
8. Disconnect the IP wiring harness connector from the junction block.
9. Remove the junction block.
Underhood Electrical Center or Junction Block Replacement
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
2. Remove the positive battery cable lead nut from the junction block. Reposition the cable lead away from the junction block.
3. Remove the junction block cover.
4. Disengage the electrical cable retainers at the rear of the junction block.
5. Turn the junction block upside down and open the lower cover.
6. Loosen the bolts retaining the engine, IP, and forward lamp wiring harness connectors to the junction block.
7. Disconnect the engine wiring harness connector from the junction block.
8. Disconnect the IP wiring harness connector from the junction block.
9. Remove the junction block.
I know this post is old, but does anyone have any pictures or tips for this?
#5
Here's the procedure from the book but the original has pics. PM me with your E Mail and I can send you a full copy.
Underhood Electrical Center or Junction Block Replacement
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
2. Remove the positive battery cable lead nut from the junction block. Reposition the cable lead away from the junction block.
3. Remove the junction block cover.
4. Disengage the electrical cable retainers at the rear of the junction block.
5. Turn the junction block upside down and open the lower cover.
6. Loosen the bolts retaining the engine, IP, and forward lamp wiring harness connectors to the junction block.
7. Disconnect the engine wiring harness connector from the junction block.
8. Disconnect the IP wiring harness connector from the junction block.
9. Remove the junction block.
Installation Procedure
1. Connect the IP wiring harness connector to the junction block.
2. Connect the engine wiring harness connector to the junction block.
Notice
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
3. Install the underhood junction block connector bolts.
Tighten
Tighten the underhood junction block connector bolts to 7 N·m (62 lb in).
4. Turn the electrical center right side up.
5. Connect the electrical cable retainers at the rear of the junction block..
6. Install the junction block cover.
7. Install the positive battery cable lead to the junction block stud. Install the positive battery cable lead nut.
Tighten
Tighten the positive battery cable lead nut to 10 N·m (89 lb in).
8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
Underhood Electrical Center or Junction Block Replacement
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
2. Remove the positive battery cable lead nut from the junction block. Reposition the cable lead away from the junction block.
3. Remove the junction block cover.
4. Disengage the electrical cable retainers at the rear of the junction block.
5. Turn the junction block upside down and open the lower cover.
6. Loosen the bolts retaining the engine, IP, and forward lamp wiring harness connectors to the junction block.
7. Disconnect the engine wiring harness connector from the junction block.
8. Disconnect the IP wiring harness connector from the junction block.
9. Remove the junction block.
Installation Procedure
1. Connect the IP wiring harness connector to the junction block.
2. Connect the engine wiring harness connector to the junction block.
Notice
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
3. Install the underhood junction block connector bolts.
Tighten
Tighten the underhood junction block connector bolts to 7 N·m (62 lb in).
4. Turn the electrical center right side up.
5. Connect the electrical cable retainers at the rear of the junction block..
6. Install the junction block cover.
7. Install the positive battery cable lead to the junction block stud. Install the positive battery cable lead nut.
Tighten
Tighten the positive battery cable lead nut to 10 N·m (89 lb in).
8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
can you please send me this instruction with pics. I message you yesterday.
Thanks
Brandon