'84 500se excessive fuel pump noise
 

The car starts fine but when it warms up
the fuel pump starts making excessive noise
as if there is alot o pressure in the fuel pump
(witch is new) maybe gas is having a hard time
going back into the gas tank? im not sure
it would be great if someone could give me some
light thanks

i would
 

look for an air leak in the fuel lines. sucking air makes noise, i think.

tom w

Those pumps usually start screaming when they're on their way out...

Make sure it's hanging free and the filter is new...you might open the supply from the tank and make sure there is enough flow without restriction.
Bad accumulators cause noise too.


.

Yes indeed. Change it now before you get stranded.

hello
 

i changed fuel accumulator, fuel fuel pump and fuel filter all new
the hoses are not new though

pump strain
 

Take a peek at the fuel tank pick up screen or strainer. Order a new O-ring before you drop that plug-screen combo, which resides in the middle of your tank. If the pump is new, it sounds like its straining to pull fuel from the tank. Do you have tandem pumps?
Dave....

pump strain
 

to get to the fuel tank pick up screen do i go from the bottom of the
car or from the trunk, my tank is half full would it spill a whole lot.
is there a to get a replaceme for this strainer.thanks again....

bruno

Take a look the screen filter in the fuel supply line reducing bushing go in to fuel distributor. Take it out try to blow out with mouth. If cannot blow thru. use comp air blow it clean. Hope this help. :)