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Discussion Starter · #1 ·
how noisy is a walbro 255 really supposed to be?

i noticed it makes a pretty damn loud high pitched whining noise, even when the tank is fairly full.. but then again, the trap door isnt installed yet.. so it's just a hole

think it might be dying?
 

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13,697 Posts
Having no trap door to cover hole increases noise significantly. When I installed a stock pump in my 90 dd, the noise was terrible until I put the trap door back on. With everything buttoned down as it should be, I can hear my pump during key on prime but not if car is running.
 

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Discussion Starter · #5 ·
haha ok you're right. my fuel pressure is really good across the board, so i guess i should stop being so paranoid. i did push a couple pounds of tank sludge through this poor pump, so im sure it wont live forever, but at least i have a trap door so changing it is a 15 minute job now instead of a whole weekend.
 
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