What's a Glow Plug Module
Thread Starter
|
Junior User
Joined: Aug 2009
Posts: 58
Likes: 0
What's a Glow Plug Module
I have a 2000 PSD 4x4 and my "Service Engine" light came on. So after charging me $100 to run A diagnostic the dealer told me that I possibly need to replace my Glow Plug Module at a cost of $400. They said this may or may not be the problem but it's a good place to start. I told them I wanted to look into it first. Does anyone know what a Glow Plug Module is? Does $400 sound right to replace one? What if it doesn't work?
Cargo Master
Joined: Oct 2010
Posts: 2,089
Likes: 16
Riffraff Diesel: Motorcraft GPCM/ Glow Plug Control Module
I assume you are referring to the Glow plug control module (GPCM). Those are usually found on CA trucks. Unless u are all thumbs, u can buy one from clay and change it yourself and save about $250.
I assume you are referring to the Glow plug control module (GPCM). Those are usually found on CA trucks. Unless u are all thumbs, u can buy one from clay and change it yourself and save about $250.
Senior User
Joined: Mar 2007
Posts: 473
Likes: 3
From: Issaquah, WA
Maybe he's referring to the Glow Plug Relay??? If so, then $45 and 15 minutes sounds more like it. You'll want to replace it with a heavy duty Stancore relay. Direct bolt in replacement. Simple.
Welcome to guzzle's Stancor GPR replacement Mod Web Page
Welcome to guzzle's Stancor GPR replacement Mod Web Page
More Turbo
Joined: Sep 2004
Posts: 703
Likes: 6
From: Butler Pa.
It's easy to tell if the GPCM is working. If you have a volt meter check voltage at battery, then have someone turn the key and see if it drops off to about 11 volts for about 3 minutes and then goes back up to over 12 volts. I bought one for mine as I was told it was bad, it wasn't, now it's a spare in my tool box.
armstrong
armstrong
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
Likes: 58
From: Missouri
Mine also has a fault code once in a while. You dont actually NEED to replace it. It wont cause any problems. I am going to replace mine eventually just so I dont have a check engine light, but it doesnt cause problems so its not high on my list
Trending Topics
'04 F-350 6.0
Joined: Apr 2006
Posts: 105
Likes: 0
From: Vine Grove, Ky
Been having cold start problems unless I plug in my engine overnight...is the GPCM a good place to start if I don't have to much money to take it to a shop?
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Cargo Master
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
Wallyworld sells a plug in volt tester that you can plug into your accessory port. (truck not running)
1) When it is plugged in you should have 'around' 12.5 volts (with new batts)
2)when you turn the key on the
Glow Plug Relay/ Glow Plug Control Module should kick in and the voltage will drop to read around 11.5v.
3) Note: these trucks need 10.5 volts to start, so if you have low batts and a voltage drop below 10.5, your truck will not start.
4) When truck is started... the voltage on the will move up to 12.5v.
5) When the GPR/GPCM shuts off the voltage slowly rise up to 14.3 (around).... this will show your Alt output.
6) the rising and falling of the voltage at the different times in the starting sequence will (help) show you what is or is not working properly.
Batts, GPR/GPCM, Atl.
Thread
Thread Starter
Forum
Replies
Last Post
ron's power stroke
1999 - 2003 7.3L Power Stroke Diesel
242
Jan 14, 2008 09:59 PM
DAVY
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
4
Feb 23, 2007 10:17 PM
nwmetalworks
1999 - 2003 7.3L Power Stroke Diesel
2
Aug 7, 2006 12:00 PM
