99 Ford F53 chassis V10 / motorhome. A/C low pressure Ford F53 Chassis: 1993 F53 motor chassis under numare motor 1993 F53 motor chassis under numare motor home . Problem is no fuel at engine when attempting to start after very cold winterne fires when using starting fluid but will not continue to run. Ford F53 Specification - A/C Refrigerant Capacity Specification - A/C Refrigerant Capacity for a Ford F53. Use the fitment form at the top of the page to select your exact year and engine type for your Ford F53.