7.3L IDI with aftermarket turbo, fuel filter light - Diesel Forum - TheDieselStop.com
7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 05-20-2018, 02:10 PM Thread Starter
Junior Member
 
CowboyMoyer's Avatar
 
Join Date: May 2018
Posts: 19
My Photos: (0)
Feedback Score: 0 reviews
7.3L IDI with aftermarket turbo, fuel filter light

howdy yalk sorry it me again same truck 1993 crew cab dually with 7.3 idi with ats aftermarket turbo, well whats it doing is the fuel filter light comes on a second later it dies, i have change fuel filters and new fuel pump and new fuel return lines, and a used fuel selector valve on frame still doing the same, if i can get it up and running i woukd be happy
CowboyMoyer is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 05-20-2018, 02:34 PM
Member
 
Join Date: Apr 2000
Location: MO
Posts: 45
My Photos: (0)
Feedback Score: 0 reviews
Fuel filter light means there's a vacuum at the filter head instead of pressure, right?

Are all your lines (feed and return) actually open? If something's plugging up the feed lines from the tanks to the lift pump, it won't be able to flow anything. Crud in the tanks blocking the pickup?

Have you tried feeding the filter directly from a can of diesel... then feed the lift pump from a can, and keep going back until you've found the obstruction.
Charles-65F350 is offline  
post #3 of 6 (permalink) Old 05-20-2018, 03:22 PM
Senior Member
 
Join Date: Nov 2008
Location: Salina, Kansas
Posts: 1,552
My Photos: (0)
Feedback Score: 0 reviews
If the trouble is common to both tanks, I would start with a plugged fuel line from the select valve to the lift pump. You can also blow back to the tank(s)from the inlet to the lift pump with compressed air. Make sure the caps are off the tanks. Then try to prime and start it again...or you mayhave been sold a bad lift pump. Did you put it in right? The lever goes under the cam lobe, and yes you can get it in wrong.

1993 F-350 crew cab non-turbo 5 speed transmission
35 years a mechanic on large stationary engines natural gas and diesel fired, and other industrial equipment.
oldrebuiltdodge is offline  
Sponsored Links
Advertisement
 
post #4 of 6 (permalink) Old 05-20-2018, 03:38 PM Thread Starter
Junior Member
 
CowboyMoyer's Avatar
 
Join Date: May 2018
Posts: 19
My Photos: (0)
Feedback Score: 0 reviews
I installed it while motor was out, this motor was rebuild 400 miles ago, I drop both tanks( was hell with both full) but I cleaned them out and blow tho the lines and had my gf change tanks and it worked air going tho, but fuel and getting to filter but idk about out of the filter

Last edited by Dick Cutting; 05-20-2018 at 06:19 PM. Reason: I fixed 3 of your i words that were not as capital letter. i was suposed to be as I
CowboyMoyer is offline  
post #5 of 6 (permalink) Old 05-21-2018, 12:43 AM Thread Starter
Junior Member
 
CowboyMoyer's Avatar
 
Join Date: May 2018
Posts: 19
My Photos: (0)
Feedback Score: 0 reviews
i got it fixed it was the fuel tank selector valveon frame, but did not buy new one i done a by pass with hoses, cause ones at autozone and O'Reilly was not the same as my old one, it was cheaper for me to put ts and houses with claps, works for me
CowboyMoyer is offline  
post #6 of 6 (permalink) Old 05-21-2018, 04:40 PM
Senior Member
 
Join Date: Nov 2008
Location: Salina, Kansas
Posts: 1,552
My Photos: (0)
Feedback Score: 0 reviews
I've been guilty of cobbleing in an after market tank selector valve a time ot two myself.

One...dare I say it...form a General Motors product!!

1993 F-350 crew cab non-turbo 5 speed transmission
35 years a mechanic on large stationary engines natural gas and diesel fired, and other industrial equipment.

Last edited by oldrebuiltdodge; 05-21-2018 at 04:45 PM. Reason: addition
oldrebuiltdodge is offline  
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > Ford Diesels > 7.3L IDI Diesels (Not Power Strokes)

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Forum - TheDieselStop.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome