Electric Fuel Pump Fitting Advice & Precautions
Fuel & Fuel Tank Contamination Fuel pumps are by design, manufactured to close (tight) tolerances to produce the desired fuel pressure. Minute particles of contamination ie. water, rust or dirt entering the pump will prove fatal, causing permanent damage to the fuel pump.
Low Fuel Levels People who consistantly drive on reserve fuel levels run also the risk of failure, An pump relies on fuel to lubricate and cool the moving parts. Remember, next time you drive on reserve fuel, pump damage may be occurring. Fuel supplied by the petrol station can be contaminated, and this dirty fuel is just waiting at the bottom of your tank!
Pump Failed - Overheated! The above events result in the pump overheating over weeks or months, followed by final failure, and low fuel levels will also not help with the cooling process of the pump.
Blocked Fuel Filter. Always ensure that the Fuel Filter is maintained regularly. Fine contamination and fuel wax will restrict fuel flow causing backpressure on the fuel pump and restricting its natural function. This results in fuel cavitation followed by progressive pump damage and resulting in failure. A large percentage of warranty failures are rejected for one of the above reasons so please make sure that you:- 1) Avoid driving and ignoring the Low Fuel Warning Light. 2) If you are aware of fuel contamination, get the system cleaned, starting with the fuel tank! 3) Follow the maintenance program of your vehicle, which includes the fuel system.
Please Note:- If you have just removed a fuel pump, ask yourself why it failed. If you do not take a minute to consider this question, the new pump may suffer the same fate! An expensive oversight for just a moments thought
Amended & adapted from FSEGlencoe
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