Fuel Pumps are a misunderstood automotive component. As with many things, there is a lot of myth surrounding Fuel Pump which can lead to expectations and actions related to their maintenance or function that may not be quite right. For instance, there is a raging myth surrounding low fuel tanks and its lack in effect on the pump itself. Actually, Fuel Pumps rely on fuel for cooling and lubrication as well — running low frequently can cause the pump to overheat which causes it to wear out prematurely, in addition affecting emissions. Driving around with an empty tank can save you less than ₦2000, but it also reduces the life of a pump by over 30% studies have shown as they are designed to be cooled from fuel.
Another of these myths is that Fuel Pumps are all alike — in other words, it does not matter what vehicle the pump comes from — they can work properly. Fuel Pumps on the other hand are designed with specific flow rates and pressure capacities that often cater to engine planned fuel delivery requirements. For example, a high-performance engine might require more than 255 liters per hour (LPH), while standard pumps flow around just 120 LPH. Incompatible pumps can result in fuel leaking into the intake manifold, inadequate flow of a large volume pump or damage to one from debris carried by an inline supply pump.
There's a common myth that fuel pump failures occur suddenly with no warning. Although it might seem like the pump just failed for no reason, most of the time there are signs that can warn you: hard starts long cranking times before starting (or"crank but won't start"), rough idling due to leans in AFRs and so on as well as engine hesitation under light acceleration or even some distinct noises. Based on a survey of professional automotive repair technicians, more than 60% of Fuel Pump failures are caused by the early warning indicators when identified in time could help reduce chances total pump failure and reduces repairs costs.
Another expensive myth is aftermarket Fuel Pumps are unreliable. That isn't always the case; even low-cost aftermarket pumps may not be of an inferior quality compared to OEM (Originnal Equipment Manufacutrer) components, with many varified brands meeting or exceeding those standards. Yes, studies have shown that top-quality aftermarket pumps of similar durability and performance can often save one 20-30%. But, validating these specifications and selecting a reliable brand is important.
Finally, it is thought that by using high-octane fuel are protecting the Fuel Pump from wear. But octane levels affect a fuel's resistance to knocking — not necessarily the health of your fuel pump. What's important, however, is fuel cleanliness because dirty or contaminated gasoline can cause the pump to clog and make it work poorly. Changing the fuel filter at regular intervals (usually every 20,00030,000 miles) stops such debris from reaching the pump and prolongs its life span.
By understanding the realities behind these myths, you can enjoy greater maintenance practices and save a lot of unnecessary expenses besides extending its pump lifespan. Understanding that the pump has a fuel level requirement, picking out the correct and sanitary pick will lead to prolonged life of a Fuel Pump.