With fuel delivery imbalances, a Fuel Pump could be the stuck on to damage delicate balance in engine combustion that will drastically reduce the efficiency of running machine—and throw all basic toward overheating.engine! A fuel pump that is no longer providing the proper amount of fuel will cause your engine to run lean—i.e. too much air and not enough gas—for combustion. Being in a state of lean makes the engine do more work and increases its temperature, therefore increasing chances on overheating it. Lean conditions increase engine running temperature by up to 20%, statistics reveal, putting components under more strain and increasing the likelihood of weak performance.
The fuel pump can also overheat due to electrical problems. Problems with wiring or relays can cause a pump to run intermittently, leading to the flow of fuel stopping and starting again thus creating something similar as an on-off cooling cycle within the engine. This includes bad electrical connections in the pump system, which auto experts believe is causing about ¼ of fuel-related overheating incidents. If power delivery is even slightly out of sync with the pump, it can either reduce performance or bring secondary consequences (i.e., strain on engine and increase in operating temperatures).
Running low on fuel can also make it easy for the fuel pump to overheat. And because the pump is cooled by fuel, lower temperatures could mean that there's too little in the tank to keep it fully submerged--which also causes increased motor heat. Continued operation during low fuel levels can decrease pump efficiency up to 15% and accelerate wear from lack of lubricating cooling. Most technicians suggest keeping a minimum of one-quarter tank full for proper pump cooling and to prevent vapor lock or overheating issues.
When the filter is clogged, the fuel pump has to work harder than it needs pushing through a restriction. This extra work is a burden to the pump motor which can eventually transfer its heat over on to the engine. According to a AAA study, clogged fuel filters force the fuel pump to work up to 30% harder and is one of the top causes for vehicle overheating when it comes outdated fuel system maintenance.
Frequent checks on the Fuel Pump and its counter parts like fuel filters, wiring will cut down chances of getting overheated. Check your Fuel Pump and learn about maintenance practices, along with other reliable pumps to keep it running at its peak.