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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC1992MAGNAVAN 5.7 KREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSOVERHAUL & TESTING - 700-R4/4L60
1992 GMC Magnavan 5.7 K
Overhaul & Testing - 700-R4/4L60
1992 GMC Magnavan 5.7 KSECTION Overhaul & Testing - 700-R4/4L60
- Application
- Identification
- Description
- Lubrication & Adjustments
- On-Vehicle Service
- Trouble Shooting
- Notes
- 1ST Gear Only, No Upshift
- Slips In 1ST
- High Or Low 1-2 Shift Speeds
- Slipping Or Rough 1-2 Shift
- Slipping, Rough Or No 2-3 Shift
- Slipping, Rough Or No 3-4 Shift
- No "R" Or Slips In "R"
- No Part Throttle Or Delayed Downshifts
- No Overrun Braking In Manual 3-2-1
- Drives (Creeps) In Neutral
- Starts In 2ND In "D"
- No Park
- Oil Pressure High Or Low
- High Or Low Shift Points
- No Converter Clutch Apply
- Converter Shudder
- No Converter Clutch Release
- Ratcheting Noise
- Oil Leaking Out Vent
- Vibration In Reverse & Whining Noise In Park
- Front Oil Leak
- No Reverse, Slips In Reverse, Bad Engagement (No Braking Or Weak Braking In Manual Low)
- Pump Bushing Spins Out, "Walks" Into Seal, Or Seizes To Converter Hub
- Slip On 2-3 Shift, Falling Out Of 3RD, Repeated 3-4 Clutch Or 2-4 Band Failure
- Delayed Or No Forward Clutch Engagement, Slips Or Chatters In 1ST Gear
- No 4TH Gear, No 3-4 Upshift (Stays In 3RD, 2ND Usually Okay)
- Falls Out Of 4TH Gear During Coasting
- Binds Up On 3-4 Shift (Feels Like Brake Drag)
- No Forward Or Reverse Gears (Line Pressure Reading Okay)
- Binds Up In Reverse
- No Reverse
- No Drive In Drive Range
- No Drive In Overdrive Range
- Clutch & Band Application
- Testing
- Torque Converter
- Removal & Installation
- Transmission Disassembly
- 2-4 Servo Assembly
- Checking Servo Pin Length
- Extension Housing
- Valve Body & Auxiliary Valve Body
- 1-2 Accumulator & Spacer Plates
- Transmission End Play Check
- Oil Pump, Input Clutch & Reverse Clutch
- 2-4 Band & Input Gear Set
- Reaction Gear Set
- Low-Reverse Clutch
- Inner Manual Shaft Linkage
- 3RD Accumulator Check Valve
- Component Disassembly & Reassembly
- Cleaning & Inspection
- Transmission Reassembly
- Service Bulletins
- No Upshift Or Stuck In 1ST Gear
- No 3RD Or 4TH Gear Or Slipping In 3RD Or 4TH Gear
- No 4TH Gear, Late Or Falls Out Of 4TH Gear
- Loss Of Wide Open Throttle 3-4 Upshift When Hot
- Redesigned Output Shaft & Input Housing-To-Output Shaft Seal
- Redesigned 3-4 Steel Clutch Plates
- New 3-4 Clutch Friction Material
- PEENED Spacer Plate
- Noise In Shift Lever
- Valve Body Sleeve Installation
- Oil Pump Removal Tool
- Possible Blown Fuses On Circuits 420, 422 Or 446 Due To Shorted TCC Wiring
- Diagnosis Information For Possible Inoperative Torque Converter Or Related Condition
- New Low & Reverse Clutch Support & Selective Plate Dimensions
- Clutch Apply Plates-Material Changed To Powdered Metal In Forward & 3-4 Clutches
- Noise/Vibration With Torque Converter Clutch Applied (Replace Torque Converter K7020)
- Erratic Or No Upshift
- Redesigned Clutch Piston Seal
- Proper Spacer Plate Gaskets Usage
- Binding Or Inoperative In Reverse
- Driveline Clunk During Garage Shift Or Hard Acceleration
- 2-4 Band Changes
- Torque Specifications
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.