Cooling System Diagnostic Symptoms (All Models): Notes

2004 Oldsmobile Bravada RWDSECTION Notes
WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOM TABLE - ENGINE COOLING SYSTEM

SYMPTOMS  CHARTS 
Cooling Fan Inoperative CHART 1 - COOLING FAN INOPERATIVE 
Cooling Fan Operates All The Time CHART 2 - COOLING FAN OPERATES ALL THE TIME 
Auxiliary Coolant Pump Inoperative CHART 3 - AUXILIARY COOLANT PUMP INOPERATIVE 
Cooling Fan Not Running Check 30A Engine Cooling Fuse
If open, replace and check LT. BLU circuit 409 for short to ground.
RENDER: 1.0x

NO RELATED

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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.