Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBUICK2007RAINIER AWD L6-4.2LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIROVERHAUL68. INPUT SPEED SENSOR INSTALLATION
2007 Buick Rainier AWD L6-4.2L
68. Input Speed Sensor Installation
2007 Buick Rainier AWD L6-4.2LSECTION 68. Input Speed Sensor Installation
Input Speed Sensor Installation
1. 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
2. Remove the ISS O-ring (249) and discard.
3. Lubricate NEW O-ring (249) with transmission fluid and position the O-ring as shown.
4. Insert the ISS (250) into oil pump ISS bore and fully seat.
5. Align ISS bolt hole insert with the oil pump mounting hole.
Notice: Refer to Fastener Notice.
6. Install bolt (247).
Tighten the bolt to 9-11 N.m (6.6-8.1 lb ft).
Important: Ensure the ISS brackets securley fasten the wiring harness to the pump housing.
7. 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.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.