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Volvo Maintenance Hints for 7xx/9xx - Bill Garland's Nuclear ...

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Fuel System: Pumps, Relays FAQ Home<br />

<strong>Volvo</strong> <strong>Maintenance</strong> FAQ <strong>for</strong> <strong>7xx</strong>/<strong>9xx</strong>/90 Cars<br />

Version 7.5<br />

Filter:<br />

Fuel Filter Replacement<br />

Airbag Deployment While Changing Fuel<br />

Filter<br />

Fuel Injection Relay:<br />

Fuel Pump and FI Relay Diagnostic Tests<br />

Symptoms of Bad Pump Relay<br />

Fuel Pumps:<br />

Fuel Pump Noise<br />

Fuel Pre-Pump Problems & Diagnoses<br />

Abbreviations:<br />

Fuel Pump and Sender Replacement<br />

Fuel Gauge Failure: Fuel Level Sending Unit<br />

Repair<br />

Fuel Main Pump Problems & Replacement<br />

Gas More Than Empty But Can't Be<br />

Pumped Out<br />

960 Fuel Tank Hose Failure<br />

B230K BiFuel Engine Ticking Sound: Fuel<br />

Pump<br />

Auxiliary Tank<br />

Fuel Pressure:<br />

Fuel Pressure Regulator and System<br />

Pressure<br />

Noisy Fuel Pump: Bad FPR<br />

Fuel Pressure Test Tool<br />

Failed Check Valve<br />

AMM Air Mass Meter<br />

ECT Engine Coolant Temperature sensor<br />

ECU Engine Control Unit computer (either fuel injection or ignition)

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