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.
Power Transistor
1990 Eagle Summit Base, StandardSECTION Power Transistor
- Disconnect power transistor connector. Using an analog ohmmeter, connect positive ohmmeter lead to terminal No. 7 and negative lead to terminal No. 3. See Fig 1 . Ensure there is no continuity.
- Using a 1.5-volt dry cell battery, connect positive end of 1.5-volt battery to power transistor terminal No. 6 and negative end to terminal No. 3. Ohmmeter should now read continuity between power transistor terminals No. 7 and No. 3.
- Connect positive end of 1.5-volt battery to power transistor terminal No. 2 and negative end to terminal No. 3. Connect positive ohmmeter lead to terminal No. 1 and negative lead to terminal No. 3. Ohmmeter should read continuity. Replace power transistor if it does not test as described.
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.