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Installed Fuel Pump... WOW =)

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Old 06-21-2006, 03:21 AM
  #11  
ckyguy68
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Default RE: Installed Fuel Pump... WOW =)

i installed a walbro 255lph high pressure pump. it was a performance increase, for me, considering how it ran before. it just feels MUCH quicker and responsive. i thought the filler neck was a breeze. the hardest part was getting the band back around the tank. i examined the old pump and it rattled when i shook it, so im thinking maybe it had a bad bearing. now i notice when i take off the gas cap, the pressure is released and its really loud, it takes about 7-10 seconds. is this normal for a high pressure pump?
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Old 06-21-2006, 03:52 AM
  #12  
Hung Like a Stang
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Default RE: Installed Fuel Pump... WOW =)

wait a second, mine does that too. Do stock pumps cause that?
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Old 06-21-2006, 04:00 AM
  #13  
grabbem88
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Default RE: Installed Fuel Pump... WOW =)

that will be 19.95....i told ya.
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Old 06-21-2006, 11:51 AM
  #14  
88BlueGT
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Default RE: Installed Fuel Pump... WOW =)

I have heard FP should be between 38-42. I had mine on my 88 set at 40 and it was perfect.
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Old 06-21-2006, 02:23 PM
  #15  
r.barn
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Default RE: Installed Fuel Pump... WOW =)

sounds like you need a new gas cap to vent tank correctly


ORIGINAL: ckyguy68

i installed a walbro 255lph high pressure pump. it was a performance increase, for me, considering how it ran before. it just feels MUCH quicker and responsive. i thought the filler neck was a breeze. the hardest part was getting the band back around the tank. i examined the old pump and it rattled when i shook it, so im thinking maybe it had a bad bearing. now i notice when i take off the gas cap, the pressure is released and its really loud, it takes about 7-10 seconds. is this normal for a high pressure pump?
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Old 06-21-2006, 05:13 PM
  #16  
Joel5.0
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Default RE: Installed Fuel Pump... WOW =)


ORIGINAL: ckyguy68

i installed a walbro 255lph high pressure pump. it was a performance increase, for me, considering how it ran before. it just feels MUCH quicker and responsive. i thought the filler neck was a breeze. the hardest part was getting the band back around the tank. i examined the old pump and it rattled when i shook it, so im thinking maybe it had a bad bearing. now i notice when i take off the gas cap, the pressure is released and its really loud, it takes about 7-10 seconds. is this normal for a high pressure pump?
...great to read the problem is taken care of. The pressure build up is ok but, you need to check that the CANister Purge (CANP) solenoid is connected to the evap canister, and the vent line from the tank is not pinched....my
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Old 06-21-2006, 05:34 PM
  #17  
gspfunk
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Default RE: Installed Fuel Pump... WOW =)

...great to read the problem is taken care of. The pressure build up is ok but, you need to check that the CANister Purge (CANP) solenoid is connected to the evap canister, and the vent line from the tank is not pinched....my
the "T" on my purge solenoid broke and they are hard to come by unless you can find a used one. I sealed off the vacuum line, removed the canister and routed the line into fenderwell by the intake.
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