fuel filters

Ken · Feb 23, 2017

Hi there, long time since I have checked out this website.
This may have been addressed before.
Recently I had a high pitched whine in my Navara after it had been running. took it into the mechanic to check it out. Couldn't find the problem for a while, then listened around the fuel filter and found the source. It was the generic filter recently installed. Changed that to genuine [and expensive] filter . Mine is a Spanish model ute. Mechanic said this happens some times with non genuine filters.
Will stick to the good ones now on.

jonney · Feb 23, 2017

don,t know how the Whine came into the fuel filter area but regarding genuine filters yes i won,t use non genuine fuel or oil filters as there has been many issues mentioned about aftermarket filters causing issues etc.

Ken · Feb 26, 2017

The pipes in and out from the filter were vibrating like a hydraulic line does when under pressure. Maybe fuel was shunting back and forth.

Old.Tony · Feb 27, 2017

The fuel filter is under low pressure when the engine is running. Chances are you had a small leak (common with non-genuine filters) and as the pump was sucking fuel, the leak allowed air to slip in and the sucking of the air made the sound. It's surprising that you didn't find the car difficult to start.

jonney · Feb 27, 2017

check the fuel filter primmer to make sure its hard to push down, if its soft you may have the air leak Tony sugested. are both in and out fuel lines nice and tight also is the fuel filter screwed on nice and firm [ hand tension ] ??