i-370 4WD L5-3.7L (2007)
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A small amount of sealant will come out of the end of the tubing when sufficient shrinkage is achieved.
16. Replace any reflective tape and clips that may have been remove during the repair.
Heated Oxygen Sensor Wiring Repairs
HEATED OXYGEN SENSOR WIRING REPAIRS
TOOLS REQUIRED
J-38125 Terminal Repair Kit
NOTE: Do not solder repairs under any circumstances as this could result in the air reference being obstructed.
If the heated oxygen sensor pigtail wiring, connector, or terminal is damaged the entire oxygen sensor assembly must be replaced. Do not attempt to
repair the wiring, connector, or terminals. In order for the sensor to function properly it must have a clean air reference. This clean air reference is
obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires, connectors or terminals could result in the obstruction
of the air reference and degrade oxygen sensor performance.
The following guidelines should be used when servicing the heated oxygen sensor:
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Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These materials may get into the sensor, causing poor
performance. Also, the sensor pigtail and harness wires must not be damaged in such a way that the wires inside are exposed. This could provide a
path for foreign materials to enter the sensor and cause performance problems.
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Neither the sensor nor vehicle lead wires should be bent sharply or kinked. Sharp bends, kinks, etc., could block the reference air path through the
lead wire.
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Do not remove or defeat the oxygen sensor ground wire (where applicable). Vehicles that utilize the ground wire sensor may rely on this ground as
the only ground contact to the sensor. Removal of the ground wire will also cause poor engine performance.
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To prevent damage due to water intrusion, be sure that the peripheral seal remains intact on the vehicle harness connector.
The engine harness may be repaired using the J-38125.
Splicing Copper Wire Using Splice Clips
SPLICING COPPER WIRE USING SPLICE CLIPS
IMPORTANT: When making a splice in an area that may be exposed to moisture use a crimp and seal splice sleeve instead of a Splice Clip. Refer to
Splicing Copper Wire Using Splice Sleeves.
TOOLS REQUIRED
J-38125 Terminal Repair Kit
1. Open the harness.
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If the harness is taped, remove the tape.
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To avoid wiring insulation damage, use a sewing ripper in order to cut open the harness.
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If the harness has a black plastic conduit, pull out the desired wire.
2. Cut the wire.
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Cut as little wire off the harness as possible.
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Ensure that each splice is at least 40 mm (1.5 in) away from other splices, harness branches and connectors. This helps prevent moisture from
bridging adjacent splices and causing damage.
3. Select the proper size and type of wire.
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The wire must be of equal or greater size than the original (except fusible link).
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The wire insulation must have the same or higher temperature rating.
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Use general purpose insulation for areas that are not subject to high temperatures.
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Use a cross-linked polyethylene insulated wire for areas where high temperatures are expected.
IMPORTANT: Use cross-linked polyethylene wire to replace PVC, but do not replace cross-linked polyethylene with PVC.
4. Strip the insulation.
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Select the correct size opening in the wire stripper or work down from the largest size.
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Strip approximately 7.5 mm (5/16 in) of insulation from each wire to be spliced.
5. Select the proper clip to secure the splice. Follow the instructions in the J-38125 in order to determine the proper clip size crimp tool and anvil.
6. Overlap the 2 stripped wire ends and hold them between thumb and forefinger.
