Genuine Hyundai Excel Power Transistor

Hyundai Excel Power Transistor Parts Questions & Experts Answers

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  Q: How to remove and test the ignition coil and Power Transistor on Hyundai Excel?

  A: Disconnect negative Battery Cable for 1994 and earlier models. On carbureted models, find the ignition coil at the front left corner of the engine compartment and unplug primary and high voltage wiring. Unscrew clamping bolts to remove the coil, taking care to move ballast resistor aside in case of early versions. For fuel injected ones, detach the upper intake manifold to get at both the coil and power transistor. Disconnect high voltage lead and wiring connectors, unbolt mounting bolts, remove units from intake manifold. To test coil, measure resistance across primary and secondary windings using ohmmeter comparing readings with given values. Check for continuity between high voltage lead terminal and coil body. Use appropriate procedures for testing ballast resistor (carbureted models) and power transistor (fuel injected models). Ignition coil assembly is mounted on left side of cylinder head for 1995 through 2002 SOHC or 1995 through 2005 DOHC models Label and remove spark plug leads, disconnect wiring connector, undo mounting bolts then take out the coil. Measure resistance (ohms) between primary winding terminals compared with secondary winding terminals (0000 ohms to infinite). Replace if faulty; i.e., defect in either SOHC Coil Assembly or DOHC Individual Coil Assembly. Engines covered are four COIL-OVER-PLUG IGNITION COILS from 2006 onwards; so pull off engine cover plus as necessary motor harness cover which retains it in place. For removal: Unplug electrical connector behind coil pack; loosen mounting bolt; lift out unit(s). Installation is reverse of removal.