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Odd Readings

Heavyd1980
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Heavyd1980

Heavyd1980

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Posted

Hey guys i have noticed this odd fluctation the last two days with my fuel pressure. What I am seeing is my pressure go from 16-18 psi then it usually starts to fall off when i am slowing down to stop, i will see anywhere from 2 to 5 to 7 to 10 psi with absoutely no engine indication that this is actually happening!!! (i think maybe false indication???) my fuel pressure has always been very steady until last night and today. :shrug::banghead:

dually

dually

Posted
Posted

Is your tank 100% factory?Do you have a hellmenns sump?Doyou have a home made sump at the bottom of the tank? How many miles on the factory fuel sending unit?Does that happen when you fill the tank?

Heavyd1980

Heavyd1980

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no i do not have a needle valve or snubber installed and the filters have about 4k on them. I have an airdog installed with the drawstraw but other than that the tank is stock and it was about 1/4 tank or so!!!

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Mopar1973Man

Mopar1973Man

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  • Owner
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no i do NOT have a needle valve or snubber installed and the filters have about 4k on them. I have an airdog installed with the drawstraw but other than that the tank is stock and it was about 1/4 tank or so!!!

I'm going to bet money your gauge (sender) is shot and been water hammered to death... Don't take much of that to kill a good gauge... :rolleyes:

Do you have access to a test gauge?

Yea... The next best option to test this out... :smart:

Heavyd1980

Heavyd1980

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no i do not have a test gauge that might be kinda tough to route into the cab since this only happens while driving. what type of needle valve has anyone used??? to help with the water hammering where would i get a test gauge and a new sender for my edge??? :banghead:

Blueox01

Blueox01

Posted
Posted

no i do not have a test gauge that might be kinda tough to route into the cab since this only happens while driving. what type of needle valve has anyone used??? to help with the water hammering where would i get a test gauge and a new sender for my edge??? :banghead:

I would think you could sending unit at any parts store. take yours in to match up with something from any gauge mfg.(or look up edge's web site)
  • Owner
Mopar1973Man

Mopar1973Man

Posted
  • Owner
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no i do not have a test gauge that might be kinda tough to route into the cab since this only happens while driving. what type of needle valve has anyone used??? to help with the water hammering where would i get a test gauge and a new sender for my edge??? :banghead:

Cheap $8 dollar needle valve from NAPA (WH6820)...

Posted Image

Then how to set the valve... With a digital gauge it going to be tough...

http-~~-//www.youtube.com/watch?v=M33ZCc8b-7Q

Heavyd1980

Heavyd1980

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If you stop the pressure comes back up?

Sorry for the late response but yes it comes back up to normal once I come to a complete stop.

--- Update to the previous post...

Cheap $8 dollar needle valve from NAPA (WH6820)...

Posted Image

Then how to set the valve... With a digital gauge it going to be tough...

http-~~-//www.youtube.com/watch?v=M33ZCc8b-7Q

Mopar thats a sweet video thank you :thumb1: What size is the valve and will it work with my big line kit?

--- Update to the previous post...

who knows where i could get another fuel pressure sender?

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Mopar1973Man

Mopar1973Man

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Sorry for the late response but yes it comes back up to normal once I come to a complete stop.

Mopar thats a sweet video thank you :thumb1: What size is the valve and will it work with my big line kit?

who knows where i could get another fuel pressure sender?

Ok...

Fitting got to Vulcan Performance to get the fitting you need for the big line kit.

As for the needle valve its a WH6820 from Napa for a whole $8 bucks.

As for the Sender you got to order it from Edge...

  • Like 2
white01

white01

Posted
Posted

Ok... Fitting got to Vulcan Performance to get the fitting you need for the big line kit. As for the needle valve its a WH6820 from Napa for a whole $8 bucks. As for the Sender you got to order it from Edge...

good to know info!!!
Heavyd1980

Heavyd1980

Posted
  • Author
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Ok...

Fitting got to Vulcan Performance to get the fitting you need for the big line kit.

As for the needle valve its a WH6820 from Napa for a whole $8 bucks.

As for the Sender you got to order it from Edge...

this fitting in red is that for the fuel sender?

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