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Go Back   Dodge Cummins Diesel Forum > 2nd Gen. Dodge Cummins 98.5-02 24V Forums > 98.5-02 Powertrain
98.5-02 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect..NO ADVERTISING .

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Old 05-22-2009, 07:23 PM   #1 (permalink)
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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.
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Old 05-22-2009, 07:26 PM   #2 (permalink)
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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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Old 05-22-2009, 07:28 PM   #3 (permalink)
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whats a part # or some pics of how to do this
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Old 05-22-2009, 07:45 PM   #4 (permalink)
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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.
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Old 05-22-2009, 08:48 PM   #5 (permalink)
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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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Old 05-22-2009, 10:12 PM   #6 (permalink)
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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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Old 05-23-2009, 01:51 AM   #7 (permalink)
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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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Old 05-23-2009, 02:02 AM   #8 (permalink)
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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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Old 05-23-2009, 11:38 AM   #9 (permalink)
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snubber from diesel manor will fix it and screw right in to the tapped banjo bolt.
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