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HOMESERVICE MANUALSPLYMOUTH1990VOYAGER SE, 2.5 J, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSTURBOCHARGER TESTINGNOTES
1990 Plymouth Voyager SE, 2.5 J, Automatic

Turbocharger Testing: Notes

1990 Plymouth Voyager SE, 2.5 J, AutomaticSECTION Notes
NOTE: Each turbocharger has a unique noise level when operating. If sound raises and lowers, check for restrictions in air intake tube or dirt build-up in compressor housing or wheel. If a high-pitched noise or whistle occurs, check for air inlet or exhaust gas leak.
  1. Remove exhaust outlet pipe from turbocharger housing. Using a mirror, observe wastegate movement while manually operating actuator linkage.
  2. If wastegate fails to open or close, replace turbocharger assembly. Spin compressor wheel and check for binding. Replace turbocharger if binding exists.
  3. Remove oil drain back tube from center housing. Check center housing for sludge in oil drain area. If center housing is heavily sludged or caked, replace turbocharger assembly.
  4. Inspect compressor wheel and housing for signs of oil leakage, gouges, nicks or distortion. If damage or oil leakage is present, replace turbocharger assembly.
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.
  • • 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.