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.
Engine Controls - Use of Crank Sensor Adjusting Tool
1985 Buick Century V6-231 3.8LSECTION Engine Controls - Use of Crank Sensor Adjusting Tool
89buick05
Bulletin 89-6E-8
Date Mar., '89
Ref. No. 89-089-6E
Corp. Ref. No. 906101
SUBJECT: USE OF CRANKSHAFT SENSOR ADJUSTING TOOL (J 37089)
MODELS AFFECTED: 1984 THROUGH 1989 BUICK MODELS EQUIPPED WITH PORT FUEL INJECTED ENGINES AND C(3)I IGNITION (VIN CODES B, C, L, N, 3, 7, 9)
The crankshaft sensor adjusting tool (J 37089) should be used for accurate sensor positioning and determining interrupter vane concentricity. This tool can be used to adjust all crankshaft sensors with the exception of the Delco single slot design illustrated below, and can be used to check the concentricity of the interrupter vanes on ALL C(3)I harmonic balancers. Use of this tool will ensure proper clearance between the interrupter vanes and sensors to prevent replacement sensors from becoming damaged.
Use the Kent-Moore feeler gage style crankshaft sensor adjusting tool (J 36179) on Delco single slot design sensors.
Bulletin 89-6E-8
Date Mar., '89
Ref. No. 89-089-6E
Corp. Ref. No. 906101
SUBJECT: USE OF CRANKSHAFT SENSOR ADJUSTING TOOL (J 37089)
MODELS AFFECTED: 1984 THROUGH 1989 BUICK MODELS EQUIPPED WITH PORT FUEL INJECTED ENGINES AND C(3)I IGNITION (VIN CODES B, C, L, N, 3, 7, 9)
The crankshaft sensor adjusting tool (J 37089) should be used for accurate sensor positioning and determining interrupter vane concentricity. This tool can be used to adjust all crankshaft sensors with the exception of the Delco single slot design illustrated below, and can be used to check the concentricity of the interrupter vanes on ALL C(3)I harmonic balancers. Use of this tool will ensure proper clearance between the interrupter vanes and sensors to prevent replacement sensors from becoming damaged.
Use the Kent-Moore feeler gage style crankshaft sensor adjusting tool (J 36179) on Delco single slot design sensors.
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.