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 MANUALSCHEVROLET1982CAVALIER L4-112 1.8LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSA/T - SERVICE REPLACEMENT ASSEMBLY
1982 Chevrolet Cavalier L4-112 1.8L
A/T - Service Replacement Assembly
1982 Chevrolet Cavalier L4-112 1.8LSECTION A/T - Service Replacement Assembly
87chevy19
Number: 86-251
Section: 7A
Date: SEPT., 1987
Subject: THM 125C SERVICE REPLACEMENT TRANSMISSION ASSEMBLY (SRTA) 1982 - 1986 THM 125C (MD9)
Model and Year: 1982-86 VEHICLES EQUIPPED WITH THM 125C TRANSAXLES
TO: ALL CHEVROLET DEALERS
Effective October 1, 1987, the THM 125C Service Replacement Transmission Assembly (SRTA) Program begins. At the start of the program, SRTA models can be ordered for all 1982 through 1986 THM 125C model applications from your local General Motors Service Parts Operation (GMSPO) Parts Distribution Center. In early 1988, the THM 125C SRTA Program will be expanded to also include 1987 and 1988 model year applications.
The THM 125C SRTA program is customer satisfaction driven and parallels the existing THM 440-T4 and 700-R4 programs. Unit replacement through SRTA represents an additional method of service Chevrolet Dealers can offer the customer in instances where major overhaul is necessary.
GENERAL GUIDELINES - REPLACEMENT OR OVERHAUL
^ Due to limited availability of all SRTA models, SRTA usage should only be considered for the following conditions:
- Repairs in which the projected cost exceeds the cost of the SRTA replacement.
^ Dealer THM 125C transaxle repairs include:
- All on-car serviceable items.
- All internal repairs which are projected to cost less than a SRTA replacement.
TRANSAXLE FLUID COOLER FLUSHING
IMPORTANT
Transaxle fluid cooler flushing must be performed whenever a transaxle is removed for service. It is essential to flush the cooler before starting the vehicle after SRTA installation, or major overhaul, if fluid contamination is suspected, or in any case of pump or torque converter replacement. A cooler flushing tool, Kent-Moore number J35944, has been sent to your dealership to properly flush the cooler. Time allowance to use the cooler flushing tool is 0.6 hours. This allowance is included in operation number K7000 (Trans R&R) for 1987-88 model year Labor Time Guides and can be added to R&R allowances for 1982 through 1985 model years.
INSTALL CASE VENT ASSEMBLY
IMPORTANT
Before installing the THM 125C SRTA unit into the vehicle, remove and discard the plastic case vent. (It is only used for shipping purposes.) Package number 8652982 provided with the SRTA contains two metal case vents. Select and install the same design metal vent as the one on the transaxle being replaced.
Shipped with each assembly is an Information Packet. The packet contents are important and should be handled according to the enclosed instructions.
NOTE: Part numbers are accurate at time of printing and subject to change. Refer to the latest GMSPO Parts Catalog for part numbers of SRTA models listed.
Number: 86-251
Section: 7A
Date: SEPT., 1987
Subject: THM 125C SERVICE REPLACEMENT TRANSMISSION ASSEMBLY (SRTA) 1982 - 1986 THM 125C (MD9)
Model and Year: 1982-86 VEHICLES EQUIPPED WITH THM 125C TRANSAXLES
TO: ALL CHEVROLET DEALERS
FIGURE 1 - THM 125C TRANSAXLE IDENTIFICATION INFORMATION:
FIGURE 2 - THM 125C SRTA MODEL REPLACEMENT CHART:
Effective October 1, 1987, the THM 125C Service Replacement Transmission Assembly (SRTA) Program begins. At the start of the program, SRTA models can be ordered for all 1982 through 1986 THM 125C model applications from your local General Motors Service Parts Operation (GMSPO) Parts Distribution Center. In early 1988, the THM 125C SRTA Program will be expanded to also include 1987 and 1988 model year applications.
The THM 125C SRTA program is customer satisfaction driven and parallels the existing THM 440-T4 and 700-R4 programs. Unit replacement through SRTA represents an additional method of service Chevrolet Dealers can offer the customer in instances where major overhaul is necessary.
GENERAL GUIDELINES - REPLACEMENT OR OVERHAUL
^ Due to limited availability of all SRTA models, SRTA usage should only be considered for the following conditions:
- Repairs in which the projected cost exceeds the cost of the SRTA replacement.
^ Dealer THM 125C transaxle repairs include:
- All on-car serviceable items.
- All internal repairs which are projected to cost less than a SRTA replacement.
TRANSAXLE FLUID COOLER FLUSHING
IMPORTANT
Transaxle fluid cooler flushing must be performed whenever a transaxle is removed for service. It is essential to flush the cooler before starting the vehicle after SRTA installation, or major overhaul, if fluid contamination is suspected, or in any case of pump or torque converter replacement. A cooler flushing tool, Kent-Moore number J35944, has been sent to your dealership to properly flush the cooler. Time allowance to use the cooler flushing tool is 0.6 hours. This allowance is included in operation number K7000 (Trans R&R) for 1987-88 model year Labor Time Guides and can be added to R&R allowances for 1982 through 1985 model years.
INSTALL CASE VENT ASSEMBLY
IMPORTANT
Before installing the THM 125C SRTA unit into the vehicle, remove and discard the plastic case vent. (It is only used for shipping purposes.) Package number 8652982 provided with the SRTA contains two metal case vents. Select and install the same design metal vent as the one on the transaxle being replaced.
Shipped with each assembly is an Information Packet. The packet contents are important and should be handled according to the enclosed instructions.
NOTE: Part numbers are accurate at time of printing and subject to change. Refer to the latest GMSPO Parts Catalog for part numbers of SRTA models listed.
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.