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#1
03-05-2006, 03:10 AM
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'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 
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#2
03-05-2006, 07:17 PM
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i would
look for an air leak in the fuel lines. sucking air makes noise, i think.
tom w
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#3
03-05-2006, 07:20 PM
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Those pumps usually start screaming when they're on their way out...
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#4
03-05-2006, 07:23 PM
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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. .
__________________
[http://languageandgrammar.com/2008/01/14/youve-got-problems-not-issues/ ] "A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."
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#5
03-05-2006, 08:02 PM
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Quote:
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein"
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#7
03-06-2006, 07:06 PM
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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....
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#8
03-08-2006, 12:36 AM
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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
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#9
03-08-2006, 01:44 AM
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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.
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