Is a snubber valve needed on airdog for low side FP? - Dodge Cummins Diesel Forum
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post #1 of 5 (permalink) Old 04-13-2019, 11:40 AM Thread Starter
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Is a snubber valve needed on airdog for low side FP?

Hey all,

Iíve been a little quiet on the forum because Iíve been rebuilding my engine.... Anyways, I got myself an airdog 100gph lift pump that replaces the in tank pump thatís in my 03 (it was retrofitted by the previous owner so I knows itís an in tank).

I am getting an isspro electric 0-30psi Fuel pressure gauge from Genoís and saw that the sensor harness is long enough to go from the cab directly to the lift pump without having a T in the line.

So my question is this: if I put a gauge directly into the lift pump, do I need to attach a snubber valve on it so it doesnít ruin the isspro sending unit or gauge?

Thanks in advance guys


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post #2 of 5 (permalink) Old 04-14-2019, 02:33 AM
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Will the sensor be getting psi after it goes through the filters? lp psi is a good indicator of when it is time to change filters.
I have used an electric fuel gauge for over 10 years without a snubber, you will get opinions for both sides of this.
I thought snubbers were used for the other type of gauges, mechanical.
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post #3 of 5 (permalink) Old 04-14-2019, 09:27 AM Thread Starter
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Yes it will be after the filters. I didnít think I needed a snubber but I thought I would double check! Thank you. But thatís interesting that placing it after the filters will give you an idea of when itís a good time to change them.


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post #4 of 5 (permalink) Old 04-15-2019, 02:43 PM
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I use 3psi below normal or 1 year as my time to change the 3mic filter on the GDP kit.
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post #5 of 5 (permalink) Old 04-16-2019, 11:55 AM
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A snubber or needle valve will prolong the life of the sensor. Its not necessary, but its only about $6. People go both ways.


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