1 - 12 General Information 5.0/5.7/6.0/8.1L
MEFI 4 - PCM
RS 22187
Figure 1-6 - Metri-Pack Series 150 Terminal Removal
AB
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4
5
3
2
2
1
1. METRI-PACK SERIES
150 FEMALE TERMINAL.
2. LOCKING TANG.
3. TOOL J35689 OR BT-8446.
4. CONNECTOR BODY.
5. SEAL.
Metri-Pack Series 150 Terminals
Figure 1-6
Some ECM harness connectors contain terminals called
Metri-Pack (Figure 1-6). These are used at some of the
sensors and the distributor connector.
Metri-Pack terminals are also called “Pull-To-Seat”
terminals because, to install a terminal on a wire, the wire is
fi rst inserted through the seal and connector. The terminal
is then crimped on the wire, and the terminal is pulled back
into the connector to seat it in place.
To remove a terminal:
1. Slide the seal back on the wire.
2. Insert tool J 35689 or equivalent, as shown in Figure
1-6, to release the terminal locking tang.
3. Push the wire and terminal out through the connector.
If the terminal is being reused, reshape the locking
tang.
Wiring Connector Service
Most connectors in the engine compartment are protected
against moisture and dirt which could create oxidation
and deposits on the terminals. This protection is important
because of the very low voltage and current levels found
in the electronic system. The connectors have a lock
which secures the male and female terminals together.
A secondary lock holds the seal and terminal into the
connector.
When diagnosing, open circuits are often diffi cult to locate
by sight because oxidation or terminal misalignment are
hidden by the connectors. Merely wiggling a connector on
a sensor, or in the wiring harness, may locate the open
circuit condition. This should always be considered when
an open circuit or failed sensors is indicated. Intermittent
problems may also be caused by oxidized or loose
connections.
Before making a connector repair, be certain of the type of
connector. Some connectors look similar but are serviced
differently.
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