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 - Revised PCM Message & Tachometer Tests
1996 Cadillac Eldorado V8-4.6L VIN 9SECTION Engine Controls - Revised PCM Message & Tachometer Tests
File In Section: 6E - Engine Fuel & Emission
Bulletin No.: 71-65-61
Date: September, 1997
SERVICE MANUAL UPDATE
Subject:
Section 6E - Engine Controls Revised PCM Message and Tachometer Diagnosis
Models:
1996 Cadillac Concours, DeVille, Eldorado, Seville
with 4.6L Engine (VINs Y, 9 - RPOs LD8, L37)
This bulletin is being issued to add the following diagnostic information to the Engine Controls section:
^ PCM Message Diagnosis - Low Engine Oil Level Message
^ PCM Message Diagnosis - Low Oil Pressure Message
^ PCM Controlled Tachometer Diagnosis
This diagnostic information was not included in the 1996 E/K services information.
Bulletin No.: 71-65-61
Date: September, 1997
SERVICE MANUAL UPDATE
Subject:
Section 6E - Engine Controls Revised PCM Message and Tachometer Diagnosis
Models:
1996 Cadillac Concours, DeVille, Eldorado, Seville
with 4.6L Engine (VINs Y, 9 - RPOs LD8, L37)
This bulletin is being issued to add the following diagnostic information to the Engine Controls section:
^ PCM Message Diagnosis - Low Engine Oil Level Message
^ PCM Message Diagnosis - Low Oil Pressure Message
^ PCM Controlled Tachometer Diagnosis
This diagnostic information was not included in the 1996 E/K services information.
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.