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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 342 (STARTING SYSTEM)DIAGNOSTIC INFORMATIONSTARTER SOLENOID DOES NOT CLICK
1999 GMC Forward Control 5.7 R, Automatic

Starter Solenoid Does Not Click

1999 GMC Forward Control 5.7 R, AutomaticSECTION Starter Solenoid Does Not Click
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Did you perform the DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL? If so, go to next step. If not, go to DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL .
  2. Turn the ignition switch to the START position. Does the engine crank? If so, go to INTERMITTENTS . If not, go to next step.
  3. Turn the ignition switch to the START position. Does the starter motor relay click? If so, go to step  7. If not, go to next step.
  4. Remove the starter motor relay. Connect a test light from the supply voltage circuit of the starter motor relay coil circuit to ground. With the transmission in park, or clutch pedal depressed, turn the ignition switch to the START position. Does the test light illuminate? If so, go to next step. If not, go to step  6.
  5. Connect a test light from the supply voltage circuit of the starter motor relay coil circuit to the control circuit of the starter motor relay coil circuit. With the transmission in park, or clutch pedal depressed, turn the ignition switch to the START position. Does the test light illuminate? If so, go to step  13. If not, go to step  10.
  6. Turn OFF the ignition. Disconnect the Park Neutral Position (PNP) switch. See PARK/NEUTRAL POSITION SWITCH in SERVICING . Or disconnect the Clutch Pedal Position switch. See CLUTCH START SWITCH in CLUTCHES . Turn ON the ignition, with the Engine OFF. Connect a 10 amp fused jumper between the starter motor relay coil control circuits of the PNP switch or Clutch Pedal Position (CPP) switch. With the transmission in park, or clutch pedal depressed, turn the ignition switch to the START position. Does the test light illuminate? If so, go to step  14. If not, go to step  11.
  7. Turn OFF the ignition. Remove the starter motor relay. Connect a test light between the battery positive voltage circuit of the starter motor relay switch circuit and a good ground. Does the test light illuminate? If so, go to next step. If not, go to step  17.
  8. Connect a 30 amp fused jumper between the battery positive voltage circuit of the starter motor relay switch circuit and the supply voltage circuit of the starter solenoid. Does the engine crank? If so, go to step  13. If not, go to next step.
  9. Does the fuse in the jumper open? If so, go to step  18. If not, go to step  12.
  10. Test the control circuit of the starter motor relay for an open or high resistance. Did you find and correct the condition? If so, go to step  23. If not, go to step  19.
  11. Test the supply voltage circuit of the starter motor relay coil circuit for an open or high resistance. Did you find and correct the condition? If so, go to step  23. If not, go to step  15.
  12. Test the supply voltage circuit of the starter solenoid for an open or high resistance. Did you find and correct the condition? If so, go to step  23. If not, go to step  16.
  13. Inspect for poor connections at the starter motor relay. Did you find and correct the condition? If so, go to step  23. If not, go to step  19.
  14. If equipped with an Automatic Transmission, inspect for poor connection at the PNP switch harness connector. If okay, go to PARK/NEUTRAL POSITION SWITCH in SERVICING . If equipped with a Manual Transmission, inspect for poor connection at the Clutch Pedal Position switch harness connector. Did you find and correct the condition? If so, go to step  23. If not, go to step  20.
  15. Inspect for poor connections at the ignition switch harness connector. Did you find and correct the condition? If so, go to step  23. If not, go to step  21.
  16. Inspect for poor connections at the starter solenoid. Did you find and correct the condition? If so, go to step  23. If not, go to step  22.
  17. Repair the open or high resistance in the battery positive voltage circuit of the starter motor relay switch circuit. After repair is complete, go to step  23.
  18. Repair the short to ground in the supply voltage circuit of the starter solenoid. After repair is complete, go to step  23.
  19. Replace the Starter Relay. After replacement is complete, go to step  23.
  20. Replace the following switches:
    • The PNP switch. See PARK/NEUTRAL POSITION SWITCH in SERVICING .
    • The clutch pedal position switch. See CLUTCH START SWITCH in SERVICING .
    After replacement is complete, go to step  23.
  21. Replace the Ignition Switch. See IGNITION SWITCH in STEERING COLUMN SWITCHES . After replacement is complete, go to step  23.
  22. Replace the starter. See STARTER MOTOR . After replacement is complete, go to next step.
  23. Operate the system for which the symptom occurred. Did you correct the condition? If so, then system is okay. If not, go to step  2.
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
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  • • The engine overheats, stalls repeatedly, or misfires under load.
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