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 MANUALSCHEVROLET1987R 30 P/U 2WD V8-350 5.7LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINS
1987 Chevrolet R 30 P/U 2WD V8-350 5.7L
Computers and Control Systems: Technical Service Bulletins
1987 Chevrolet R 30 P/U 2WD V8-350 5.7LSECTION Technical Service Bulletins
- Customer Interest
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Engine Controls - Improved Driveability/False MIL Lamp
- Engine Controls - Surge In 1ST Gear (Revised PROM)
- Engine Controls - New PROM (Driveability/False Lights)
- Engine - Rough/Surge/Misfire Code 43
- By Symptom
- Abnormal wear/deterioration
- Customer Interest
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Engine Controls - Improved Driveability/False MIL Lamp
- Engine Controls - Surge In 1ST Gear (Revised PROM)
- Engine Controls - New PROM (Driveability/False Lights)
- Engine - Rough/Surge/Misfire Code 43
- Driveability
- Erratic Shifting
- False instrument warning light/gauges
- All Technical Service Bulletins
- Engine - THIS BULLETIN HAS BEEN CANCELED
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Engine Controls - Improved Driveability/False MIL Lamp
- Engine Controls - Surge In 1ST Gear (Revised PROM)
- Engine Controls - New PROM (Driveability/False Lights)
- Engine - Rough/Surge/Misfire Code 43
- Engine Control - Altitude Adjustments
- Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
- ECM/PCM - Damaged and/or Misdiagnosed
- Electrical - Care of Metri-pack 150 Terminals
- Service Manual - Supplement
- MAP - Revised Check Chart for DTC's 33, 34, 63, 64
- A/T TCC - MIL ON/False Code 32 Set Diagnostics
- Engine Controls - Electrostatic Discharge Damage
- ECM - Revised Replacement Procedure
- Engine Controls - ECM May Contain Wrong PROM
- ECM - Packard 32 Way Connector Identification
- ECM/PCM - Damage Prevention
- Oxygen Sensors - Silica Contamination
- Electrical - VSS Connector Mislabeled
- PROM/MEMCAL - Identification Marks
- Electrical - Speed Sensor Buffer Connector Labeled Wrong
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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.