Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Fuel Filter: Service and Repair


WARNING: Do not smoke while working on fuel system. Keep open flame away from your work area. While replacing the Fuel Filter, be careful to keep a safe distance between Battery Terminals and any tools.

The Fuel Filter should be replaced whenever the fuel pressure drops below the specified value (280 - 330 kPa, 2.8 - 3.3 kg/cm2, 40 - 47 psi with the Fuel Pressure Regulator Vacuum Hose disconnected and pinched) after making sure that the Fuel Pump and the Fuel Pressure Regulator are OK.


1. Disconnect the Battery Negative Cable from the Battery Negative Terminal.
2. Place a shop towel under and around the Fuel Filter.
3. Relieve fuel pressure.

Fuel Filter Replacement:




4. Support the Fuel Filter with a wrench, then remove the Banjo Bolt and the Fuel Feed Pipe from the Fuel Filter.
5. Remove the Fuel Filter Clamp and Fuel Filter.
6. When assembling, use new Washers.

NOTE: Clean the Flared Joint of High Pressure Hoses thoroughly before reconnecting them.