Its supposed to be replaced every so often? I had motoroilmcale help me do some work to my truck today and he said they are supposed to be replaced every so often, and he noted mine was stock with the stock black paint on it. He said if unreplaced they hurt fuel pressure, hence poor mileage and power. He said it's only a few buck thru Cummins for the new spring. Any additional info and help?

Matt

 

ofv?

 

ofv? Whats that stand for?

 

over flow valve

 

Is that the springy-thing thats on top of the p-pump that needs to be replaced every so often?

 

obviosly it dont have to be replaced to often since no one knows so could be a good thing right?

 

Should be the overflow valve on the pump return.

Dodge Cummins VP44 Bosch Overflow Return Check Valve : eBay Motors (item 250599214672 end time Apr-17-10 00:44:59 PDT)

 

Doc, thats for a VP44. 12Vs have P7100.

 

Do some more research

 

hes talkin about the overflow valve, normally ya just change it when it goes bad