Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Installed RiffRaff Fuel mod?

Thread Tools
 
Search this Thread
 
Old Jul 2, 2015 | 06:34 AM
  #1  
Gatordog's Avatar
Gatordog
Thread Starter
|
Senior User
Joined: Jun 2015
Posts: 284
Likes: 0
Installed RiffRaff Fuel mod?

I just installed the Riffraff Regulated Fuel return line mod and the instructions say that if the spring is not centered then you will have to much fuel pressure. There is no way to install the system and know for sure if the spring is centered. You are in a tight area holding the Frx, the bolts, the spring/plunger and trying to align all the components. Anyway, the install went just fine, I had no problem getting the new fuel block installed and there are no leaks and the truck running fine.


My questions is: How do I know if my fuel pressure is to High? Will the truck run funny? Will the check engine light come on?


I don't have a fuel pressure gauge as of yet.
 
Reply
Old Jul 2, 2015 | 08:33 AM
  #2  
Riffraff Diesel's Avatar
Riffraff Diesel
PREMIUM SPONSOR
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2009
Posts: 6,042
Likes: 79
There isn't a positive way without having a fuel pressure gauge, but there will be a lot of resistance when you install the fuel block if the spring is crossed.
 
Reply
Old Jul 2, 2015 | 11:31 AM
  #3  
Gatordog's Avatar
Gatordog
Thread Starter
|
Senior User
Joined: Jun 2015
Posts: 284
Likes: 0
Thanks Clay, no resistance on install. Install went just fine. I did have to loosen the fuel filter housing before installing the new Frx block to the housing. I did not have to remove the A/C like most people. Actually when removing the factory one, it seem to have more spring pressure. Truck revs much quicker, but I did the IAH mod at the same time. I could not believe they put such a large object in the intake, what where they thinking.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
DSMMH
6.0L Power Stroke Diesel
25
Feb 19, 2010 10:03 PM
teppler
6.0L Power Stroke Diesel
28
Feb 19, 2010 11:08 AM
PorchFarms
6.0L Power Stroke Diesel
47
Jan 19, 2010 02:49 PM
ALEXVB22
6.0L Power Stroke Diesel
13
Aug 13, 2008 09:38 PM




All times are GMT -5. The time now is 11:27 AM.

story-0
5 BEST / 5 WORST Ford Daily Drivers of the 21st Century

Slideshow: The 5 best and 5 worst Ford daily drivers of the 21st century.

By Joe Kucinski | 2026-06-23 08:55:01


VIEW MORE
story-1
10 Fords to Drive Before You Die

Slideshow: 10 Fords to drive before you die.

By Joe Kucinski | 2026-06-22 14:29:44


VIEW MORE
story-2
3 Best / Worst Features Of The 2025+ Ford Expedition

The latest Expedition is quite popular, but it certainly isn't perfect.

By Brett Foote | 2026-06-22 14:23:19


VIEW MORE
story-3
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-4
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-5
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-6
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-7
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-8
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-9
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE