Factory lift pump??

[LB7 Lover 1994]

So I went out to my truck about a half hour ago, started it backed out of my driveway and it died. I proceeded to try and start it again and it wouldn't start and made the same noise as when the rail is empty of fuel.

So I thought it might be the lift pump so I popped the hood, pressed the button on top of the pump and there was absolutely no pressure. I began pumping the button and eventually pressure returned to the pump. Climbed in the truck try to start it and after two attempts it started.

I let it run for a while it never died again, went ahead and drove it to town and again no trouble.

Is my factory lift starting to go out or what is going on the injectors are already starting to go so I'm kinda running out of hope and money to be able to dump into this truck!

 

[mike diesel]

There is no factory lift pump. Rebuild your filter head.

 

[hondarider552]

Oem fuel system is under vacuum there is no lift pump factory.

 

[dieseladdiction23]

It doesn't have a factory lift pump, could be you fuel filter head leaking, you could start by rebuilding it. The rebuild kit is pretty cheap

 

[LB7 Lover 1994]

By lift pump I was referring to fuel pump! Sorry for the confusion.

 

[mike diesel]

There is no factory lift pump or fuel pump... lift pump and fuel pump are the same thing..

 

[Texas Chevy]

There is no factory lift pump or fuel pump... lift pump and fuel pump are the same thing..

X2 rebuild the filter head like the others said

 

[LB7 Lover 1994]

What all does rebuilding it consist of doing?

 

[superswamper003]

Switch the fuel filter, under the hood

 

[LB7 Lover 1994]

I'm running a Wixx high efficiency (4 micron I believe) filter I just changed it less than 2000 miles ago

 

[paint94979]

http://www.merchant-automotive.com/completefilterheadrebuildkit.aspx

 

[mike diesel]

You can buy the rebuild kit for about $20. Its just some o rings that get replaced. They wear out and cause air to get into the fuel system causing hard starts.

 

[SSchmi5519]

I'm running a Wixx high efficiency (4 micron I believe) filter I just changed it less than 2000 miles ago

It doesn't matter. One bad batch of fuel will toast a brand new fuel filter.

 

[messejme]

The filter head has some orings that will be replaced during the rebuild.one of the vendors here sells a rebuild kit i forget who though. Change the filter also and maybe also the rubber hoses to and from the filter head. You have a leak allowing air into the fuel system because vacuum is the way fuel is sucked from the fuel tank.

 

[LB7 Lover 1994]

After watching the video there is no doubt I can do that..:thumb:

 

[PACougar]

What you should really do is get rid of the factory filter head and install a lift pump with better filters.

 

[LB7 Lover 1994]

I've heard about deleting these how hard is that? Don't you also loose the fuel heater by doing this? Not that I'll loose any sleep,by pissing off the EPA!

 

[PACougar]

There's no fuel heater in the filter head, it's actually very easy to delete it. Only do it if you add a lift pump with a filter and water separator setup. If you do I would suggest going to one of the Cat filters, they're much better than the factory replacements for the Duramax's. Do some searching, a lot of guys have built some really nice setup's, in case you don't want to buy a complete kit.

 

[DMAXchris]

There's no fuel heater in the filter head

But there is. The black wire on top is for the heater element. The wires on the bottom are for the WIF sensor. :thumb:

 

[LB7 Lover 1994]

But there is. The black wire on top is for the heater element. The wires on the bottom are for the WIF sensor. :thumb:

x2