We recently purchased  a 98.5 laramie slt, and we have fixed the boost sensor the tps and replaced the filter, we are now looking to replace the lift pump. We rented a fuel pressure  gauge and hooked it up and we got idle pressure of 19 to 20 and reed pressure of 10 to 11, we have been told that it should run a constant  pressure  of at least 14 to 16. When we removed it we noticed some wires were cut, yellow with a white tracer going into the ecm and it is both wires. We have done a lot to this truck and we are at a loss, when we rev it up the pressure  drops and the engine starts to run flat has no power. Please help us.

Yep.

Yes basically none of that will be needed. Pretty sure I got rid of everything when I installed mine. The draw straw goes in place of the stock fuel lines going into the tank. Then you cut the suction tube as close to the bottom of the tank as you can. Simple and effective. There are a few versions of the draw straw depending on what type of lift pump you run so keep that in mind. 

Ok we will look into the draw straw. Thank you

What one should we get on vulcan, this s a stock truck it will be used as a truck and to pull a fifth wheel and maybe gooseneck trailer.

It also has a airtex lift pump.

Just a drawstring 1 or whatever the basic one is.

 

Just ensure you mount it so the straw sits almost on bottom, they work great provided you install then correctly.

 

I think there is an article here about it.  I will look later.

The intank pump fuel module will work, but you do have to modify it. My AD came with a kit to do just that. I removed the pump, modified the pickup into a second return for the AD and added a new fitting to the top for the pick up line. No issues with it since the install 5 or 6 years ago.  But there is no need to buy an in tank pump module just to throw away the pump. 

The draw straw is a good option though. Not knocking it at all.

Here is a article on Mike's install of his AD. Scroll toward the bottom and it shows how he installed his draw straw. Notice the way that he cut the end of the straw so it would not suck down to the tank. It is cut square with 4 notches 90* from each other. He seems to have very good service with it for at least a decade.

 

Yep,  

 

I did the same thing and can EASILY run the tank down to 2 gallons with no pressure issues.  

Ok this is all good info. We will look into both Air Dog and Vulcan and decide which one will work the best for our application.

Both use the same drawstraw.  

 

Just go over to vulcanperformance.com and get the cheapo drawstraw.,

Ok thank you.

No major modifications  needed then.

Vulcan has who you need. I would suggest you call and tell them what you are trying to do. He will help you get what you need. There will be some variables with what you are doing.

Edited March 14, 201610 yr by dripley

Ok we are having some real bad weather here, we will call them tomorrow and get a price and what needs to be done.

Thank you

Ok the draw straw is on it's way.

Ok here is the most recent news on our dodge. We received and placed the draw straw, it fixed some of the issues. The most recent fix was the injection pump, it took us a while to save up, but it is now on the truck. It still has some front end work and brakes to be fixed, but it is running better then it ever has. It needs fine tuning but it starts and runs good. Thanks for everybody's help, if more questions come up I will post them. Thanks again especially, driply and mopar1973man, you guys were the most important part in this fix.

Edited August 16, 20169 yr by 99 confused
Missed a word

Glad you are up and running.