Fuel Return Line: Testing and Inspection

Fuel Line Inspection

Check the fuel system lines, hoses, fuel filter, and other components for damage, leaks, and deterioration, and replace them if necessary.

NOTE: When installing a new O-ring, apply silicone oil or polyalkyleneglycol (PAG) oil to the O-ring, and carefully install it into its proper position.






NOTE: Check all hose clamps and retighten them if necessary.

* 1: Apply silicone grease (PARKER CHRISTO-LU BE) to a new O-ring at the fuel filter housing and drain plug, and carefully install it into its proper position.
* 2: Apply silicone oil or silicone grease (Shinetsu silicone GR 1OM) to a new rubber seal, and carefully install it into its proper position.