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.
1960 Chevrolet Nomad 5.7L Eng, Automatic Trans, Trans Mfr CD PowerglideFACTORY OEM SERVICE PROCEDURE
Combination Valve
| Condition | Code | Procedure |
|---|---|---|
| Attaching hardware broken | A | Require repair or replacement of hardware |
| Attaching hardware missing | C | Require replacement of hardware |
| Attaching hardware not functioning | A | Require repair or replacement of hardware |
| Leaking | B | Require repair or replacement |
| Linkage bent (rear load valves) | A | Require repair or replacement of linkage |
| Linkage broken (rear load valves) | A | Require repair or replacement of linkage |
| Pressure out of specification | B | Require adjustment If not possible, require replacement |
| Seized | A | Require replacement |
| Sticking | A | Require repair or replacement |
| Terminal burned, affecting performance | A | Require repair or replacement |
|
NOTE:
Determine cause and correct prior to repair or replacement of part.
|
||
| Terminal burned, not affecting performance | 2 | Suggest repair or replacement |
| Terminal corroded, affecting performance | A | Require repair or replacement |
| Terminal corroded, not affecting performance | 2 | Suggest repair or replacement |
| Terminal loose, affecting performance | B | Require repair or replacement |
| Terminal loose, not affecting performance | 1 | Suggest repair or replacement |
| Threads damaged | A | Require repair or replacement |
| Threads stripped (threads missing) | A | Require replacement |
| Wire lead burned | A | Require repair or replacement |
| Wire lead conductors exposed | B | Require repair or replacement |
| Wire lead open | A | Require repair or replacement |
| Wire lead shorted | A | Require repair or replacement |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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