Fuel pressure should be the same hot or cold, but check it just for the record. It's not so much the fuel pump as it is the fuel. Alcohol blended fuel can destroy the cheaper pumps in a short time -all depends on the type of alcohol (Ethanol, Methanol or Isopropanol), the % added to the gasoline and how often the machine is run. Alcohol fuel should be used within 21 days of purchase and not let set more than 5 days or the alcohol can separate from the gas. When alcohol absorbs water (from the atmosphere) is separates from the gasoline and algae starts to grow in the water. Can cause clogged filters, damaged rubber parts, stuck float needles and other fuel system problems.
Shop Owner and Mechanic with over 50 years experience