glow plugs
Cargo Master
Joined: Mar 2010
Posts: 2,227
Likes: 149
From: Higginsville, MO
i would lean towards the controller/relay being shot.... happened to me when i first got my truck and that was the solution i also put in new plugs when i changed the controller.....
Beru (motorcraft) ZD9 plugs are all that will ever go in my truck there is a link to them in my signature
here is a link to the controller (it was 144 dollars when i bought it a little over a year ago)
BWD GPR8 - Glow Plug Controller | O'Reilly Auto Parts
Beru (motorcraft) ZD9 plugs are all that will ever go in my truck there is a link to them in my signature
here is a link to the controller (it was 144 dollars when i bought it a little over a year ago)
BWD GPR8 - Glow Plug Controller | O'Reilly Auto Parts
Lead Driver
Joined: Mar 2006
Posts: 5,105
Likes: 1,523
From: western SD
Have you checked the glow plugs to see if any are burned out? If you have 2 or more bad plugs You will get a very short wait to start light (2 seconds or less) and the relay will go into the afterglow mode ( the clicking you hear).
Cargo Master
Joined: Mar 2010
Posts: 2,227
Likes: 149
From: Higginsville, MO
get a test light and ground it out.... unplugg the wires to the glow plugs and touch the test light to tip of the glow plug where the wire connects and if it lights up the plug is good if it doesn't then its usually bad.
Posting Guru
Joined: Feb 2011
Posts: 2,216
Likes: 0
From: Princeton MN
Most of the time it's just bad glow plugs, the controller goes into afterglow mode to prevent the other plugs from burning out due to the increased voltage to them. Change the bad plugs (if they are not beru change them all) and the controller should function correctly
Trending Topics
Lead Driver
Joined: Mar 2006
Posts: 5,105
Likes: 1,523
From: western SD
You would have better luck testing the plugs by hooking the test light wire to the positive battery post, then touching the terminal on the gp where the wire hooks to, after removing the wire. If the light comes on when touching the gp, it is probably good, if no light it is bad.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post