Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO1996850 BASE, 4D WAGON, STANDARD, M59REPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSAIR INDUCTION SYSTEMSTURBOCHARGERBASIC ADJUSTMENT OF PRESSURE REGULATOR PUSH ROD
1996 Volvo 850 Base, 4D Wagon, Standard, M59
Basic Adjustment Of Pressure Regulator Push Rod
1996 Volvo 850 Base, 4D Wagon, Standard, M59SECTION Basic Adjustment Of Pressure Regulator Push Rod
- Remove locking circlip from end of push rod. Connect Pressure Gauge (999-5230 ) and Pressure Tester (999-5496 ) to pressure regulator. See Fig 1 . Increase pressure to 1.7-1.9 psi (11.7-13.1 kPa). Press wastegate lever against turbine housing, closing wastegate valve.
- Adjust push rod length so push rod fits exactly over wastegate valve lever. Install locking circlip, and tighten push rod lock nut. Remove pressure gauge and tester.
RENDER: 1.0x
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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.