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 MANUALSPONTIAC1987GRAND PRIX LE, 5.0 HREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSDIAGNOSIS - TORQUE CONVERTER CLUTCH
1987 Pontiac Grand Prix LE, 5.0 H
Diagnosis - Torque Converter Clutch
1987 Pontiac Grand Prix LE, 5.0 HSECTION Diagnosis - Torque Converter Clutch
- Description
- Trouble Shooting
- Testing & Diagnosis (Exc. REATTA, Riviera & TORONADO)
- Testing & Diagnosis (REATTA, Riviera & TORONADO)
- TCC Diagnostic Charts
- Notes
- Chart C-8, Torque Converter Clutch - CARBURETED Passenger Cars (1 And 2 Of 3)
- Chart C-8, Torque Converter Clutch - CARBURETED Passenger Cars (3 Of 3)
- Code 24, Vehicle Speed Sensor - CARBURETED Passenger Cars
- Chart C-8, Torque Converter Clutch 2.0L & 2.5L TBI - A, J, N & P Bodies
- Code 24, Vehicle Speed Sensor 2.0L & 2.5L TBI - A, J & N Bodies (With Pm Generator)
- Code 24, Vehicle Speed Sensor 2.5L TBI - A Body (With In-Dash Speed Sensor)
- Code 24, Vehicle Speed Sensor 2.5L TBI - P Body
- Chart C-1A, Park/Neutral Switch 2.0L & 2.5L TBI - A, J, N & P Bodies
- Chart C-8, Torque Converter Clutch 2.0L (VIN 1) TBI - J & L Bodies
- Code 24, Vehicle Speed Sensor 2.0L (VIN 1) TBI - J Body
- Code 24, Vehicle Speed Sensor 2.0L (VIN 1) TBI - L Body
- Chart C-1A, Park/Neutral Switch 2.0L (VIN 1) TBI - J & L Bodies
- Chart C-8, Torque Converter Clutch 4.3L & 5.0L (VIN E) TBI B, F & G Bodies (1 Of 2)
- Chart C-8, Torque Converter Clutch 4.3L & 5.0L (VIN E) TBI B, F & G Bodies (2 Of 2)
- Code 24, Vehicle Speed Sensor 4.3L TBI - B & G Bodies
- Code 24, Vehicle Speed Sensor 5.0L (VIN E) TBI - F Body
- Chart C-1A, Park/Neutral Switch 4.3L & 5.0L (VIN E) TBI - B, F & G Bodies
- Chart C-8, Torque Converter Clutch 2.0L PFI - J & N Bodies
- Code 24, Vehicle Speed Sensor 2.0L PFI - J & N Bodies
- Chart C-1A, Park/Neutral Switch 2.0L PFI - J & N Bodies
- Chart C-8, Torque Converter Clutch 2.3L PFI - N Body
- Code 24, Vehicle Speed Sensor 2.3L PFI - N Body
- Chart C-1A, Park/Neutral Switch 2.3L PFI - N Body
- Chart C-8, Torque Converter Clutch 2.8L PFI - A, J, L & P Bodies
- Chart C-8, Torque Converter Clutch 2.8L PFI A & W Bodies With 440-T4 (1 Of 2)
- Chart C-8, Torque Converter Clutch 2.8L PFI A & W Bodies With 440-T4 (2 Of 2)
- Chart C-8, Torque Converter Clutch 2.8L, 5.0L & 5.7L PFI - F Body (1 Of 2)
- Chart C-8, Torque Converter Clutch 2.8L, 5.0L & 5.7L PFI - F Body (2 Of 2)
- Chart C-8, Torque Converter Clutch 5.7L PFI - Y Body (1 Of 2)
- Chart C-8, Torque Converter Clutch 5.7L PFI - Y Body (2 Of 2)
- Code 24, Vehicle Speed Sensor 2.8L, 5.0L & 5.7L PFI A, F, J, P & Y Bodies
- Code 24, Vehicle Speed Sensor 2.8L PFI - L & W Bodies
- Chart C-1A, Park/Neutral Switch 2.8L, 5.0L & 5.7L PFI A, F, J, L, P, W & Y Bodies
- Chart C-1, ECM Quad-Driver Check 2.8L PFI - F & P Bodies
- Chart C-8, Torque Converter Clutch 3.0L PFI - N Body
- Chart C-8, Torque Converter Clutch 3.8L PFI - A, C & H Bodies (1 Of 2)
- Chart C-8, Torque Converter Clutch 3.8L PFI - A, C & H Bodies (2 Of 2)
- Chart C-8, Torque Converter Clutch 3.8L PFI (Turbo) - G Body
- Code 24, Vehicle Speed Sensor 3.0L & 3.8L PFI - A, C, G & H Bodies
- Chart C-1A, Park/Neutral Switch 3.0L & 3.8L PFI - A, C, G & H Bodies
- Chart C-8, Torque Converter Clutch 3.8L "3800" PFI BONNEVILLE, ELECTRA & Ninety-Eight (1 Of 2)
- Chart C-8, Torque Converter Clutch 3.8L "3800" PFI BONNEVILLE, ELECTRA & Ninety-Eight (2 Of 2)
- Code 24, Vehicle Speed Sensor 3.8L "3800" PFI BONNEVILLE, ELECTRA & Ninety-Eight
- Code 31, Park/Neutral Switch 3.8L "3800" PFI BONNEVILLE, ELECTRA & Ninety-Eight
- Chart C-8, Torque Converter Clutch 3.8L "3800" PFI REATTA, Riviera & TORONADO
- Code EO24, Vehicle Speed Sensor 3.8L "3800" PFI REATTA, Riviera & TORONADO
- Code EO27, EO28, & EO29 2ND, 3RD & 4TH Gear Switch 3.8L "3800" PFI REATTA, Riviera & TORONADO
- Code EO31, Park/Neutral Switch 3.8L "3800" PFI REATTA, Riviera & TORONADO
- Code EO38, Brake Switch 3.8L "3800" PFI REATTA, Riviera & TORONADO
- Code EO39, Torque Converter Clutch 3.8L "3800" PFI REATTA, Riviera & TORONADO
- Code B124, Vehicle Speed Sensor 3.8L "3800" PFI REATTA, Riviera & TORONADO
- Code B127, Gear Selector Switch 3.8L "3800" PFI - TORONADO
- Chart C-8, Torque Converter Clutch 2.5L & 2.8L Light Trucks & Vans
- Chart C-8, Torque Converter Clutch 4.3L, 5.0L, 5.7L Light Trucks & Vans
- THM 400 Downshift Control Light Trucks & Vans
- Code 24, Vehicle Speed Sensor Light Trucks & Vans
- Chart C-1A, Park/Neutral Switch Light Trucks & Vans
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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.