Just wondering if anyone could help me figure out what to call this part, it's leaking fuel off the fuel injector rail. I wasn't able to find it in the service manual and the dealer had no idea what I was talking about, but was more than eager to sell me a new rail . I can twist it and it seems to be loose like it once was pressure fitted. Any insight is much appreciated.
The pressure regulator is in the pump assembly int he tank. That's probably a fuel pressure dampener. It looks like it should be a separate piece, but I didn't see it listed separately on the parts websites, so it may only be available as part of a fuel rail assembly.
What was the fix for this problem? My 02 WJ 4.0 seems to be developing the same leak at 90K.
Same here I started smelling fuel while outside vents were on. Thought it was the injector o-rings as I felt some fuel by the number 4 inj, so I replaced all of the o-rings. Turns out it was trickling down to the #4 injector from the fuel pulse dampener in the above.
Nobody shows this as a part, so is it safe to assume it's sold along with a new rail assembly? It looks to have metal tabs holding it on a ridge, I've thought about trying to pop it off and see if I could replace an o-ring there.
looks like some kind of pressure relief valve maybe? where are you located? in washington? what part, if i see it in person i could probably (maybe) figure it out?
oops, i should probably read the thread first. dangit.
Built Beater 01 WJ MY BUILD THREAD
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02 Cummins. It has a smoking problem, And it wont quit.
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I ended up just buying a new fuel rail and that regulator is mounted already. After i took the old one off I inspected and while you may be able replace the o-rings under the top cap I wasn't confident it would seal up again. The rail was just under 200 if I recall.