NOTE: M-VANS WITH 4.3 OR 2.5 LITRE ENGINE AND SCHOOL BUSES WITH 366 V-8 GAS ENGINE.VEHICLES MAY HAVE FUEL RETURN HOSES WHICH COULD BREAK AT THE CRIMPED COUPLING. COUPLING SEPARATION IN THE PRESENCE OF AN IGNITION SOURCE COULD RESULT IN AN ENGINE COMPARTMENT FIRE.CORRECTION: A PROPERLY CRIMPED FUEL RETURN HOSE WILL BE INSTALLED ON AFFECTED VEHICLES.