Que: So, how does the fuel pump eventually will get failed? One of the primary justifications is destruction inside the parts. Fuel pumps usually last between 100,000-200,000 miles until they start degrading since the motor and gears inside the pump tend to weaken after a while because of frequent use. Research has shown that the pump may lose as much as 20% of its ability to maintain pressure, a crucial function as most automakers seek between 40 and around 60 PSI, after approximately 120,000 miles. This gradual decrease results in symptoms such as sluggish acceleration, low idle even stalling.
Another big one is heat build up. Fuel pumps use gasoline not only as fuel, but also as a coolant. This condition forces the pump to pull in air, which can make it run hot. According to the same research, it is found that a pump can lose nearly 30% of its lifetime running on low fuel. Eventually, the heat stress will weaken both its motor and electrical connections to a point of failure.
This leads to long-term damage from the contaminants in the fuel. Fuel Tank — Especially on older vehicles or those driven in areas with poor fuel quality, dirt, rust, or debris can end up in the fuel tank. These particles block the fuel filter and make the pump work harder to pump fuel through. If the filter gets so dirty that it clogs up, the pump can heat up and eventually burn out. Industry studies point to around 15% or more of fuel pump failures being caused by this condition
For instance, there was a quite significant event of a massive recall done by a carmaker for more than 150,000 fuel pumps that did no good. Analysis of the failed pumps showed that contaminated fuel had clogged the pump's internal filter, which led to a shortened lifespan and ill-fated exhaust.
Like Steve Jobs said long ago, “It is best to keep a company aside from both the quality instead of quantity…” The same theory goes with fuel pump performance, as preserving high-grade gas and keeping the tank over 1/4 full can save you a lot of damage in the long-run.
The cost to replace fuel pump on average is $500 – $1,000Depending of the vehicle. Performing routine maintenance, such as a 30k mile fuel filter change, makes the pump last longer and can save you hundreds in repairs. Failure to do so can cause even bigger engine problems and cost you more money in the long run.
On an ending note, fuel pumps do get damaged with the passage of time because of wear and tear, heat stress or contamination. Measures such as keeping the fuel tank full enough and using clean fuel will go a long way in ensuring that your water pump has a longer life. For additional information about fuel pump service, visit Fuel Pump.