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 MANUALSCHEVROLET1987CHEVETTE L4-98 1.6LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTECHNICAL SERVICE BULLETINS
1987 Chevrolet Chevette L4-98 1.6L
Transmission and Drivetrain: Technical Service Bulletins
1987 Chevrolet Chevette L4-98 1.6LSECTION Technical Service Bulletins
- Customer Interest
- By Symptom
- All Technical Service Bulletins
- Drivetrain - Information on Driveline Clunk Noise
- Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
- Vehicle - Engine And Sub-Systems Flushing Recommendations
- M/T - Operating Characteristics Information
- A/T - Fluid Oil Cooler Flow Test
- A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
- A/T - Slight Vehicle Movement In Park At Start Up
- ACDelco(R) Remanufactured Transmissions - Program Update
- A/T & M/T - AC Delco Remanufactured Transmissions
- A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
- Differential Pinion Shaft Lock Screw - Service
- A/T - Modulator Chart
- A/T Oil Cooler - Updated Flushing Procedure
- A/T Throttle Valve System - Condition Summary/Diagnosis
- A/T - Sporadic Engagement of Torque Converter Clutch
- Starter/Flywheel - Gear Clash or Milling
- A/T - No 1st Gear/Slips In 1st Gear
- A/T - THM 3T40 New Roller Clutch
- A/T - THM 180/180C Slipping or No Upshift
- A/T - Drive Link Wear Specifications Revised
- A/T - Core Return Product Feedback Form
- A/T - Converter Clutch Solenoid Fluid Source I.D.
- A/T - Torque Converter Identification
- A/T - Engine Vacuum Testing
- A/T - Diagnosing Converter Lock-Up Problems
- Overview
- Test # 1 - Checking For 12 Volts at Terminal -A-
- Test # 2 - Checking For 12 Volts Across Fuse
- Test # 3 - Checking For 12 Volts Across Brake Switch
- Test # 4 - Adjusting/Replacing the Brake Switch
- Test # 5 - Checking Wires For Shorts and Opens
- Test # 6 - Checking For Ground at Terminal -D-
- Test # 7 - Grounding the -D- Wire
- Test # 8 - Checking Cooler Line Pressure or Surge
- Test # 9 - Checking the Solenoid
- Test # 10 - Checking Electrical Switches on Trans.
- Test # 11 - Checking Lockup Apply Valve
- Test # 12 - Checking Signal Oil Circuit
- Test # 13 - Checking the Computer
- A/T - How To Use A Pressure Gauge
- A/T - Drive Axle and Wheel Lug Nut Torque Specifications
- A/T - No Converter Clutch Apply When Unit Is Hot
- A/T - 180C Erratic Shift,, Late Shifts, Burnt Clutch
- A/T - Rapid Converter Pump Bushing Wear
- A/T - Converter Clutch Shudder
- A/T - Pressure Tap Locations
- A/T - Governor Pressure Switches
- A/T - Methods to Check for Restricted Exhaust
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - No Upshift/Governor Contamination
- A/T - Sprag Rotation
- A/T - Checking Pressure Switches For Leaks
- A/T - Math Formulas Part I
- A/T - Twenty Steps To Successful Repairs
- A/T - Math Part II
- A/T - Choosing the Right ATF
- M/T - Neutral/Drive Gear Rattle
- A/T - Updated ATF Fluid Color/Level Check Information
- A/T - Proper Fluid Level Checking Procedure
- A/T - DEXRON III Fluid Introduction
- A/T - Evaluating Peened Spacer Plates
- A/T - THM 700R4 New Second Servo Apply Pin
- A/T - 3T40 New Side Cover and Bottom Pan Gasket
- M/T - Hydraulic Clutch Bleeding Procedure Improvement
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- A/T - No Movement in Drive or 3rd Gear
- A/T - Grinding/Growling Noise in Park on Incline
- A/T - Water Or Coolant Contamination Information
- A/T - DEXRON(R)-VI Fluid Information
RENDER: 1.0x
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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.