Electrical - Care of Metri-pack 150 Terminals
88chevy03GMC NUMBER: 88-T-76
GROUP: 6D - Engine Electrical
DATE: January, 1988
CORPORATE
NUMBER: 838104
SUBJECT: DAMAGE TO WIRING TERMINALS ON ENGINE SENSORS -
METRI-PACK 150 SERIES
MODELS: ALL 1985 - 88 VEHICLES
Improper handling of the Metri-pack 150 series electrical terminals may result in damage that could affect their performance. The Metripack 150 terminals are used on a variety of
engine applications on all vehicle lines. Some of these usages include the TPS and coolant sensors. Pictured below is a sketch of the Metri-pack series terminals.
DIAGNOSIS:
The Metri-pack 150 series terminals are small and can easily be damaged by probing during diagnosis. Any terminal damage may result in an intermittent contact condition.
DO NOT USE TEST LIGHT PROBES, METER PROBE, PAPER CLIPS, OR ANY OTHER FOREIGN OBJECTS WHEN DIAGNOSING CIRCUITS WITH METRIPACK 150 SERIES ELECTRICAL TERMINALS.
The proper way to take measurements at these terminals is to insert the proper mating terminal and use that as a contact for your meter or test light. These terminals can be obtained from the GMSPO standard parts catalog (P/N 12047581) or from the Kent-Moore Connector Test Adapter Kit (J35616).
TESTING
To evaluate a Metri-pack 150 terminal for proper operation, insert a new mating terminal and check for a slight drag when the terminals are separated. Loose terminals without drag should be replaced.
DO NOT ATTEMPT TO REPAIR A DEFECTIVE TERMINAL.
SERVICING
Refer to Truck Service Bulletin 86-B-83 or the appropriate Light Duty Truck Service Manual (Section 8A) for the proper way to replace these terminals. Be sure to crimp and solder all terminals to the wire. A hand crimp alone is not sufficient to guarantee a satisfactory connection.