FASS return spring/pressure, help?

FASS return spring/pressure, help?

07-03-2005, 03:34 PM

#1 (permalink)

JCyrbok

Offline
Join Date: Jul 2001 Location: Michigan Posts: 1,491

FASS return spring/pressure, help?

I have had a FASS system on my truck for about 2 months now. I run about 12.5 psi at idle and about 12.0 running down the highway at 70. I can pull it down to about 10.5psi at WOT.Pressure can sometimes be alittle erratic too. The only mods are a DDTPM and a Scotty II.I am running a NAPA 2micron filter on the pump, which I feel accounts for some of the lower pressure.

I have read some threads that mention the return spring/check ball being weak or needing to be stretched. I e-mailed Piers where I got the FASS from as DPP said the dealer would take care of me, but have not heard back from them after several weeks.

Where is the spring/check ball located? What would be the proceedure to remove it and the check ball, so I can check/stretch the spring alittle to see if that helps.

Thanks in advance,
J-

__________________
01.5 2500 extcab 4x4 auto,PATRIOT BLUE,SPA boost/EGT gauge Dakota Digital FP gauge,Scotty Air,FASS,DD TTPM,Amsoil'd,Amsoil By Pass,battery box by TDR Member CPFF,LineX,Truxedo Toneua cover,powervision mirrors,Sirius,DSS/3rd Gen track bar, TDR badge and crazy Weimaraner.

Non members can only view the initial post on threads more than 7 days old. There are 9 additional replies on this thread that you could view if you were a member.

TDR Membership offers many benefits including:

4 issues of the TDR magazine per year including these columns:
- Tailgating - A Letter From The Editor
- Letter Exchange - Responses From The Readers
- Member2Member - Members' Solutions To Members' Questions
- Technical Topics - Service/Parts Update
- First Generation - Owner-Specific Articles On The '89 - '93 Dodge Diesel Trucks
- 12-Valve Engines - Owner-Specific Articles On The '94 - '98.5 12-Valve Dodge Diesel Trucks
- 24-Valve Engines - Owner-Specific Articles On The '98.5 - '02 24-Valve Dodge Diesel Trucks
- Third Generation - Owner-Specific Articles On The '03 And Newer Dodge Diesel Trucks
- Blowin' In The Wind - Industry News
- Shadetree - Back To The Basics
- Celebrity Corner - The Shadetree Mechanic - Sam Memmolo
- From The Shop Floor - Tips From Turbo Diesel Repair Shops
- Products Showcase - Featured Products
- TDRelease - Vendor Press Releases
In many areas of the country a local chapter with events
A yearly printed copy of the TDR Travel companion listing approximately 700 TDR members across the country willing to help you if you have trouble on the road
Complete access to the TDR website including:
- Ability to do advanced searches over 1.1 million posts
- Access to members only forums (Truck 911, FAQ Forums, Discontinued parts support, Rigs spotted, Pay it forward, Other, and Political)
- Posting ability to the forums
- Ability to read an unlimited number of posts from the forums
- Can customize your forum list to your interests
- Can choose 1st, 2nd, 3rd gen, or rotating header graphics
- Limit searches to forums your interested in
- View posts since you last logged on
- Private message ability to other members
- Chat room access
- Diesel truck specific TSB listing by model year
- Online access to the Travel Companion database (with most current information)