fuel pressure spikes - Dodge Cummins Diesel Forum

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post #1 of 9 (permalink) Old 05-22-2009, 06:23 PM Thread Starter
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fuel pressure spikes

I got all the glowhift gauges. I hooked up the electric fuel pressure gauge about two weeks ago and it read steady till yesterday. Now it just jumps around everywhere. All the other gauges have worked fine. I have a tapped banjo bolt and then the fuel pressure sender. I've heard something about needed to run a fuel pressure snubber. I found a pic of one and it looks like the tapped banjo bolt i'm already running. I am confused. What do i need to run inline to keep the sender working, i could i have just gotten a bad one.


2001 quad cab 4X4 5.9 CTD. NV5600. 4" exhaust. adrenaline,100hp injectors. 214K
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post #2 of 9 (permalink) Old 05-22-2009, 06:26 PM
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You just need to plumb in a needle valve between the sender and wherever you have the sender hooked up to. It's purpose is to buffer the fuel pressure pulsations to the gauge

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post #3 of 9 (permalink) Old 05-22-2009, 06:28 PM Thread Starter
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whats a part # or some pics of how to do this

2001 quad cab 4X4 5.9 CTD. NV5600. 4" exhaust. adrenaline,100hp injectors. 214K
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post #4 of 9 (permalink) Old 05-22-2009, 06:45 PM
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hmmmm.... Look on Moparman1973's website. Look him up on this site, and then click his link in his sig. That will take you there.

98.5 3500 2WD dually, 4:10's, Full Auto Meter, 5" Bullhaulers, Byrds Intake,3.3 whipple/ 63/ 480, HRVP, GHD, Studded and Ringed, 6x.018, .093 tubes, Stage 2 snow, Air Dog 165, Georend trans, VP intercooler boots
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post #5 of 9 (permalink) Old 05-22-2009, 07:48 PM Thread Starter
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i've looked at that. But what do you use to protect the sending unit with a non-mechanical gauge. I've seen many posts that peoples senders last about 1 week or 2. I might need to see some pics of an electrical gauge setup to understand this.

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post #6 of 9 (permalink) Old 05-22-2009, 09:12 PM
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the electrical gauge I thought had like an 1/8" npt thread on the end right? SO you should be able to run a line out of the banjo bolt then the needle valve, then the sender.

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post #7 of 9 (permalink) Old 05-23-2009, 12:51 AM
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Quote:
Originally Posted by jonny24v01 View Post
I got all the glowhift gauges. I hooked up the electric fuel pressure gauge about two weeks ago and it read steady till yesterday. Now it just jumps around everywhere. All the other gauges have worked fine. I have a tapped banjo bolt and then the fuel pressure sender. I've heard something about needed to run a fuel pressure snubber. I found a pic of one and it looks like the tapped banjo bolt i'm already running. I am confused. What do i need to run inline to keep the sender working, i could i have just gotten a bad one.
Weatherhead part no. WH6820, just got mine at napa for 8 bucks, works good


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post #8 of 9 (permalink) Old 05-23-2009, 01:02 AM
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Quote:
Weatherhead part no. WH6820, just got mine at napa for 8 bucks, works good
What he said. This is a little needle valve that has 1/8" male thread on one side and 1/8" female on the other. It works with both mechanical and electric. You want to just barely crack the valve open.

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post #9 of 9 (permalink) Old 05-23-2009, 10:38 AM
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snubber from diesel manor will fix it and screw right in to the tapped banjo bolt.

'02 2500 CTD. H.O 3.55 gears. DSV. Assasin fuel pump, BHAF, 4" Turbo back w/Muffler, Dpricol Optix guages, Edge Comp, SIRIUS Satellite Radio. (Work) - '99 2500 CTD Quad cab. Short bed, assasin fuel pump, BHAF, 4" turbo back, +50 injectors, DTT 47RE,Play)
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