Input Speed Sensor Installation

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Input Speed Sensor (ISS) Assembly

Courtesy of GENERAL MOTORS CORP.

Inspect the input speed sensor (ISS) assembly (250) for the following conditions:
- Cracked or damaged housing
- Worn, broken or missing harness brackets; replace the ISS assembly if necessary
- Damaged or worn wining or electrical connector
- Loose, missing or damaged mounting bolt insert

Fig 2: Identifying Input Speed Sensor (ISS) O-Ring

Courtesy of GENERAL MOTORS CORP.

Remove the ISS O-ring (249) and discard.
Lubricate NEW O-ring (249) with transmission fluid and position the O-ring as shown.
Insert the ISS (250) into oil pump ISS bore and fully seat.
Align ISS bolt hole insert with the oil pump mounting hole.

NOTE: Refer to Fastener Notice .

Install bolt (247).
Tighten: Tighten the bolt to 9-11 N.m (6.6-8.1 lb ft).

Fig 3: Identifying ISS Assembly Wire Harness

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Ensure the ISS brackets securley fasten the wiring harness to the pump housing.

Route the ISS assembly (250) wire harness as shown. Install harness bracket #1 and #2 in the locations shown. Ensure the wire harness lays flat against the pump housing.