SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 623 (ENGINE COOLING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESPRESSURE CAP TESTING
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Pressure Cap Testing

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Pressure Cap Testing
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

  • J 24460-01  Cooling System Pressure Tester. See Special Tools .
  • J 42401  Radiator Cap/Surge Tank Test Adapter. See Special Tools .
  • J 46143  Intercooler Reservoir Cap Test Adapter. See Special Tools .
    CAUTION: In order to help avoid being burned, do not remove the radiator cap while the engine and the radiator are hot. Scalding fluid and steam can be blown out under pressure if the cap is removed too soon.
  1. Remove the pressure cap.
  2. Wash the pressure cap sealing surface with water.
    3. Fig 1: Pressure Testing Radiator Cap
    GM850101Courtesy of GENERAL MOTORS CORP.
  3. Use J 24460-01  (1) with one of the following attachments (2):. See Special Tools .
    • J 42401  in order to test the radiator cap. See Special Tools .
    • J 46143  in order to test the intercooler reservoir cap. See Special Tools .
  4. Test the pressure cap for the following conditions:
    • Pressure the release when J 24460-01  exceeds the pressure rating of the pressure cap. See Special Tools .
    • Maintain the rated pressure for at least 10 seconds.

      Note the rate of pressure loss.

  5. Replace the pressure cap under the following conditions:
    • The pressure cap does not release the pressure which exceeds the rated pressure of the cap.
    • The pressure cap does not hold the rated pressure.
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.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.