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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCADILLAC1993DEVILLE BASE, 4D SEDANREPAIR AND DIAGNOSISELECTRICALCHARGING SYSTEMSALTERNATOR & REGULATORBENCH TESTINGROTOR TESTCS144 (WITHOUT AUXILIARY PHASE TERMINALS)
1993 Cadillac DeVille Base, 4D Sedan
CS144 (Without Auxiliary Phase Terminals)
1993 Cadillac DeVille Base, 4D SedanSECTION CS144 (Without Auxiliary Phase Terminals)
- Scribe end frames to facilitate reassembly. Remove through bolts and separate end frames.
- With ohmmeter set to its lowest range, measure coil resistance between slip rings. See Fig 1. Replace rotor if coil resistance is not 2.1-2.4 ohms at 70°F (21°C).
- With ohmmeter set to its highest range, check for grounds between either slip ring and rotor pole piece. See Fig 1. If reading is not close to infinite, replace rotor.
- To reassemble alternator, reverse disassembly procedure. Retain brushes with brush retaining pin during reassembly. See Fig 2. Remove retaining pin after tightening through bolts.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.