Notices
1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

3 main relays?

Thread Tools
 
Search this Thread
 
Old Mar 14, 2019 | 02:42 PM
  #1  
HK351's Avatar
HK351
Thread Starter
|
New User
Joined: Mar 2019
Posts: 2
Likes: 0
3 main relays?

I have a 1990 F250 351W. I am wondering what the 3 main relays in engine bay are.

Brown plug base........ EEC Relay
Green plug base........fuel pump relay
Grey plug base..................................... that is the one i can't figure out as the part numbers on it are worn off and i can't read it or find this info after much searching

part numbers would be very helpful too. Thanks in advance.
 
Reply
Old Mar 14, 2019 | 06:10 PM
  #2  
subford's Avatar
subford
Fleet Owner
20 Year Member
Photogenic
Photoriffic
Top Answer: 1
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Trailer Tow Relay (Trailer Marker Lamp).
Attachment 279101
/
 
Reply
Old Mar 27, 2019 | 04:50 PM
  #3  
HK351's Avatar
HK351
Thread Starter
|
New User
Joined: Mar 2019
Posts: 2
Likes: 0
thank you much. i realized it was the tow relay when i flipped the mounting frame over and looked at it. my brother had modified and tucked a lot of stuff in the engine bay so it wasn't in factory orientation. appreciate the response.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
KRAZY KRAMER
All Things Towing
2
Nov 5, 2018 11:35 AM
V10man
Electrical Systems/Wiring
5
Dec 1, 2012 11:27 AM
quality job 1
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
13
May 3, 2010 09:46 PM
fordtruck4life
1997 - 2003 F150
5
Feb 6, 2006 07:57 PM
VNAMUS
2.6, 2.8, 2.9, 4.0 & SOHC 4.0 V6
1
Aug 9, 2003 09:50 PM




All times are GMT -5. The time now is 01:02 AM.

story-0
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-05-30 18:33:59


VIEW MORE
story-1
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-2
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-3
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-4
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-5
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-6
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-7
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-8
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-9
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE