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 MANUALSPLYMOUTH1989COLT DL, 1.5 X, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISBASIC TESTINGIGNITION CHECKSDISTRIBUTORLESS IGNITION SYSTEM (DIS)POWER TRANSISTOR
1989 Plymouth Colt DL, 1.5 X, Standard
Power Transistor
1989 Plymouth Colt DL, 1.5 X, StandardSECTION Power Transistor
- Remove connector from power transistor. Using a DVOM, place positive lead to terminal No. 4 and negative lead to terminal No. 6. See Figure . Ensure there is no continuity.
- Using one 1.5 volt dry cell battery, connect positive end of 1.5 volt battery to transistor terminal No. 5 and negative end of 1.5 volt battery to transistor terminal No. 4. Place positive lead of DVOM to terminal No. 4 and negative lead to terminal No. 6 to ensure continuity is present.
- Connect positive end of 1.5 volt battery to transistor terminal No. 2 and negative end of 1.5 volt battery to transistor terminal No. 4. Place positive lead of DVOM to terminal No. 4 and negative lead to terminal No. 1 to ensure continuity is present. If DVOM does not respond properly, replace power transistor.
RENDER: 1.0x
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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.