Glo Plug check
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Senior User
Joined: Mar 2007
Posts: 145
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From: Minnesota
Glo Plug check
My 05 6.0 is having a very tough time starting even with the block heater on all night. It has been -20 below and more for about 1 week but even before that it started whith what seemed like one cyclinder. Lots of black smoke for about 2 - 5 minutes and then it runs smooth. Is there a link on checking/replacing the glo plugs on the 6.0? I only use #1 diesal and use Motorcraft antigel as well. Truck has 140,000 miles on it and used to start flawlessly without the blockheater at -30 below!
Thanks for any input.
Thanks for any input.
Laughing Gas
Joined: May 2005
Posts: 1,082
Likes: 1
From: Illinois
I can't answer your question on the glow plugs. I can only give you a comparison. I have a 2005. The temperatures this week in the burbs of Chicago have ranged -17F to -22F before adding in windchill. I park my truck outside, I didn't plug in the block heater, it starts right away and I get no more than a few seconds of black smoke, it runs rough for a few seconds and then smoothes out right away. I let it idle for about 20 minutes (I know, idling is not a good thing for this engine with the stock EGR system still in) before I drive it.
Mountain Pass
Joined: Jul 2007
Posts: 239
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From: north carolina
I live in North Carolina and my truck does the same thing, hard starting cold, white smoke for a few seconds, eventually smooths out. If I plug the truck in..no problem at all. I also figure glow plugs as the problem but I have not proved it yet. I am also interested in the procedure to replace the glow plugs.
Senior User
Joined: Sep 2008
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My 05 6.0 is having a very tough time starting even with the block heater on all night. It has been -20 below and more for about 1 week but even before that it started whith what seemed like one cyclinder. Lots of black smoke for about 2 - 5 minutes and then it runs smooth. Is there a link on checking/replacing the glo plugs on the 6.0? I only use #1 diesal and use Motorcraft antigel as well. Truck has 140,000 miles on it and used to start flawlessly without the blockheater at -30 below!
Thanks for any input.
Thanks for any input.
Could be a injector going bad to mine did the samething and ended up being a injector. Hope this helps
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Senior User
Joined: Mar 2007
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From: Minnesota
So am I correct in assuming that a bad injector or a bad glow plug "may not" throw a code? Here is a link to the 6.0 bible that addresses Glow Plugs. 6.0L Bible Table of Contents
At 140,000 miles might it be a good idea to replace all of the glow plugs and all of the injectors????
At 140,000 miles might it be a good idea to replace all of the glow plugs and all of the injectors????
Senior User
Joined: Sep 2008
Posts: 133
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So am I correct in assuming that a bad injector or a bad glow plug "may not" throw a code? Here is a link to the 6.0 bible that addresses Glow Plugs. 6.0L Bible Table of Contents
At 140,000 miles might it be a good idea to replace all of the glow plugs and all of the injectors????
At 140,000 miles might it be a good idea to replace all of the glow plugs and all of the injectors????
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Try Hot Shot's Secret
So am I correct in assuming that a bad injector or a bad glow plug "may not" throw a code? Here is a link to the 6.0 bible that addresses Glow Plugs. 6.0L Bible Table of Contents
At 140,000 miles might it be a good idea to replace all of the glow plugs and all of the injectors????
At 140,000 miles might it be a good idea to replace all of the glow plugs and all of the injectors????
Hi,
Just wanted to jump in here and put in my two cents
We are getting lots of customer calls about 6.0's with this issue. Hard starts in the 6.0 is not uncommon this time of year.
If the injector is suspected or proven to be the root of the problem, we suggest trying Hot Shot's Secret before replacement.
Hot Shot's Secret was designed to remedy the stiction issue that is the primary cause of injector failure in the 6.0. It is tested and proven and carries a 100% guarantee.
See Lubrication Specialties | Diesel Motor Oil | Primrose Engine Oil | Fuel Additives | Oil Additives | Engine Restore| for more details.
Right now through January 31'st, we are offering our "Tune Up Trio" with FREE SHIPPING... that is Hot Shot's Secret, Fire Power 404 (injector/fuel system cleaner) and NT oil additive for your transmission...all for one loooow price. Click on the Special Offer button for more info!!
Good luck getting this matter resolved.
Dan
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Posting Guru
Joined: Dec 2006
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From: Kansas City/Breckenridge
You might want to get your block heater tested also. Even with weak glow plugs it still shouldn't start that rough with her plugged in.
Also you should be running a light weight oil if you aren't allready.
Also you should be running a light weight oil if you aren't allready.
Junior User
Joined: Mar 2007
Posts: 55
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So am I correct in assuming that a bad injector or a bad glow plug "may not" throw a code? Here is a link to the 6.0 bible that addresses Glow Plugs. 6.0L Bible Table of Contents
At 140,000 miles might it be a good idea to replace all of the glow plugs and all of the injectors????
At 140,000 miles might it be a good idea to replace all of the glow plugs and all of the injectors????
My 2004 starts like crap too, when Cold and not plugged in. I am in the north part of NC it has been in the teens here lately, Its just part of having a 6.0 mine has 144,000 on the odo.. I will just live with it until my injectors go bad..
Lead Driver
Joined: Sep 2007
Posts: 8,180
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From: Scio, OR
The glow plug control module should monitor the condition of each glow plug and communications with the PCM and report any problems with a code.
Glow plug on time is determined by the PCM, using input from the oil temperature sensor, barometer sensor and battery voltage. It may be that the oil temp sensor or baro sensor is bad, but you'd probably need some sort of scan tool to figure those out.
Another possibility is some sort of grounding issue, I suppose. If the GPCM wasn't well enough grounded the glow plugs might not be getting a good power flow. Or the battery voltage information to the PCM might be off.
These are just things to think about. Someone with a scan tool that can read data off the modules, such as the oil temp, baro sensor data and battery voltage might be able to help you get some clues.
Glow plug on time is determined by the PCM, using input from the oil temperature sensor, barometer sensor and battery voltage. It may be that the oil temp sensor or baro sensor is bad, but you'd probably need some sort of scan tool to figure those out.
Another possibility is some sort of grounding issue, I suppose. If the GPCM wasn't well enough grounded the glow plugs might not be getting a good power flow. Or the battery voltage information to the PCM might be off.
These are just things to think about. Someone with a scan tool that can read data off the modules, such as the oil temp, baro sensor data and battery voltage might be able to help you get some clues.
Mountain Pass
Joined: Jul 2007
Posts: 239
Likes: 4
From: north carolina
Changing the glowplugs is not to bad on each side there is a wiring harness above the manifolds on the aluminum valve covers your model should pull right out then with a extention and I think its a 10m socket stick it in the holes the wiring harness came from then pull them right out and put your new ones in.
Could be a injector going bad to mine did the samething and ended up being a injector. Hope this helps
Could be a injector going bad to mine did the samething and ended up being a injector. Hope this helps
I have a 2003 6.0L will the glow plugs be in the same place?
When you mention manifold you refering to the exaust manifold?
Senior User
Joined: Sep 2008
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Yeah there in the same place and yes its the exhaust manifold. Only thing different is the wiring harness 03s have a bar with plastic type prongs that you will need to pull off the glowplugs the newer models dont have the bar and they have more of a diferent hook up.
Mountain Pass
Joined: Jul 2006
Posts: 225
Likes: 4
From: ILL relocated to Ozarks
I live in North Carolina and my truck does the same thing, hard starting cold, white smoke for a few seconds, eventually smooths out. If I plug the truck in..no problem at all. I also figure glow plugs as the problem but I have not proved it yet. I am also interested in the procedure to replace the glow plugs.
It sounds as though you may have a issues with the Flash update for your FICM, if it has not been done. I'm not sure how cold it gets in your area but you might also look at Fords suggestion on engine oil weight for the temps in your area.
Mountain Pass
Joined: Jul 2007
Posts: 239
Likes: 4
From: north carolina
You mentioned a FICM program update that addresses the oil temp in the injectors. I am running Spartan tunes, could Matt's tune be causing my problems? I thought I would ask before switching back to the stock tune to see.
