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 MANUALSCHEVROLET1987S10/T10 P/U 2WD V6-173 2.8LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIROVERHAUL700-R4 AUTOMATIC TRANSMISSIONSUBASSEMBLY SERVICECASE & INTERNAL COMPONENTSTHIRD ACCUMULATOR RETAINER & BALL ASSEMBLY
1987 Chevrolet S10/T10 P/U 2WD V6-173 2.8L
Third Accumulator Retainer & Ball Assembly
1987 Chevrolet S10/T10 P/U 2WD V6-173 2.8LSECTION Third Accumulator Retainer & Ball Assembly
1. Inspect for sticking, leaking or missing check balls.
2. Inspect retainer for proper seating and restricted feed slots.
3. Perform retainer and ball assembly leak check procedure as follows:
a. Install servo assembly in servo bore.
b. Install servo cover and retainer, then pour a suitable solvent into the accumulator bore. Observe for leakage inside case.
c. If leakage is observed, replace 3rd accumulator retainer and ball assembly.
4. If it is necessary to replace the 3rd accumulator check valve assembly, proceed as follows:
a. Remove 3rd accumulator retainer and ball assembly using a number 4 screw extractor.
b. Install new check ball assembly, small end first into case, positioning oil feed slot in sleeve facing servo cover.
c. Using suitable tool, drive check valve assembly until seated in case. To ensure correct installation depth, scribe a mark at 1.653 inch on a 3/8 inch diameter metal rod, then seat the 3rd accumulator and ball assembly as shown. When the scribed line is flush with the case, Installation depth is correct.
2. Inspect retainer for proper seating and restricted feed slots.
3. Perform retainer and ball assembly leak check procedure as follows:
a. Install servo assembly in servo bore.
b. Install servo cover and retainer, then pour a suitable solvent into the accumulator bore. Observe for leakage inside case.
c. If leakage is observed, replace 3rd accumulator retainer and ball assembly.
4. If it is necessary to replace the 3rd accumulator check valve assembly, proceed as follows:
a. Remove 3rd accumulator retainer and ball assembly using a number 4 screw extractor.
b. Install new check ball assembly, small end first into case, positioning oil feed slot in sleeve facing servo cover.
c. Using suitable tool, drive check valve assembly until seated in case. To ensure correct installation depth, scribe a mark at 1.653 inch on a 3/8 inch diameter metal rod, then seat the 3rd accumulator and ball assembly as shown. When the scribed line is flush with the case, Installation depth is correct.
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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.