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Engine/Transmission (1998.5 - 2002) Fuel Pressure Readings

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Engine/Transmission (1994 - 1998) Rebuilt nv 4500

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I am a new CTD owner and a new member to the TDR. I have been reading and learning as much as I can about my new investment( if you can call it that )



One topic that has been discussed in length in the problems with the lift pumps.



So, as many have recommended, I ordered a set of gauges ( EGT, Boost and Fuel Pressure) which will be delivered and installed soon.



With all this talk about failing lift pumps trashing out the VP-44, it made me kind of parinoid. So I deceided to install a temporary fuel pressure gauge under the hood untill the other ones arrive.



I removed the stem from the schrader valve on the side of the fuel filter housing & installed a braided SS line to the fuel pressure gauge. As you can see in my signature I have a 2001 3500 ETH/ DEE 4x4 w/ 38,000 miles.



When I started the engine, I get pressure readings of 4. 5 - 5 psi. at idle. From everything I have read, shouldn't it be around 13 - 15 psi.

:confused:



Do I have a failing lift pump? Did I install it in the right location and properly? If this is a low pressure, how long do I have until I start causing damage to the VP-44?



I do have a extended warrantee. Would it be covered?



Any information you can give would be helpful.



Thanks for your help.



Frank
 
pressure is low. min pressure under load is 8 psi (i believe). the pump is lubricated with the returned fuel. i would replace fast if it was me. it should be a warr item for you. ken
 
pressures

FNilo



I think the minimum Dodge needs to see is 10 psi at idle warmed up and pre filter. I installed a fuel gauge and was only getting 8-9 at idle, 6-7 around town and 5 climbing hills. Dodge took me in under warranty and now my pressures are 14+ at idle, 12-13 around town and 10+ climbing hills. The lift pump was failing at 36,000 miles. My loss across the filter is only 1-1. 5 psi if you care to check it at the pump instead of pre filter. The schraeder test port is on the side of the filter housing facing back to the driver. Hook the gauge there and you will get pre filter numbers.
 
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