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Home >> Cadillac >> 2002 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 107 (Engine Control System - Basic Diagnostic Procedures) >> Basic Ignition System Checks >> IDI (2.4L) >> Spark
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IDI (2.4L): Spark

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  1. Disconnect tachometer wire from IDI module (if equipped). A shorted tachometer will not allow engine to start. Temporarily remove IDI assembly and install Spark Plug Jumper Wires (J-36012).
  2. Using Spark Tester (J-26792), check for spark at each spark plug wire. Leave other wires connected while checking for spark.