Glow plug issue
Thread Starter
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Mountain Pass
Joined: Sep 2014
Posts: 126
Likes: 1
From: Trenton Florida
Glow plug issue
now that it's cold out i'm sure others will have this come up. Had a hard time starting truck this morning. how do i determine if it is the glow plugs, glow plug control module, or the glow plug relay? the truck finally started, of course with alot of white smoke at first due to the cold engine but cleared up in a couple minute after burning off the extra fuel it dumped in the cylinders before starting.
Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
The glowplug system is pretty good about lighting up the CEL if there's a problem. This thread has some good info on the system. https://www.ford-trucks.com/forums/1...ce-manual.html
Cold weather get all the way down to to you? Near Dothan Al, we were at 34°f here this morning. First fire in the fireplace this year.
Do you have an OBDII monitor to see FICM volts etc?
Cold weather get all the way down to to you? Near Dothan Al, we were at 34°f here this morning. First fire in the fireplace this year.
Do you have an OBDII monitor to see FICM volts etc?
Thread Starter
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Mountain Pass
Joined: Sep 2014
Posts: 126
Likes: 1
From: Trenton Florida
the oil pressure is very good. high enough it blew out my oil cooler a few weeks ago. so wouldn't be a HPO problem i wouldn't think.
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Joined: Aug 2001
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All the advice you receive is moot unless you have digital gauges to report what the PCM is seeing and commanding during cold start.
Josh
Thread Starter
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Mountain Pass
Joined: Sep 2014
Posts: 126
Likes: 1
From: Trenton Florida
Oil cooler is low pressure. Injectors are driven off high pressure oil. If you had coolant in the oil the injector spools could easily be toast.
All the advice you receive is moot unless you have digital gauges to report what the PCM is seeing and commanding during cold start.
Josh
All the advice you receive is moot unless you have digital gauges to report what the PCM is seeing and commanding during cold start.
Josh
Thread Starter
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Mountain Pass
Joined: Sep 2014
Posts: 126
Likes: 1
From: Trenton Florida
after loading the scangauge with the codes here is what i'm showing at a idle after running for about 30 minutes
Trans Temp. TFT -104
Engine oil temp. EOT - 166
Injector control pressure - 576 - 585
Mass fuel Desired - MFD - 9.0
Volume fuel desired - VFD - 11.1
Exhaust Back Pressure - EBP - 6.3
Manifold Air Temp - MAT - 40
FICM Main Power - FMP - 48.5
FICM Logic Power - FLP - 12.5
FICM cam and crank position Sync - SYC - 1
IRP Duty Cycle - IRP - 23.4
VREF Calibration Voltage Input - CVI - 4.96
Intake air temp - IA2 - 101
VGT Duty Cycle - VGT - 0
Boost - BST - 0.01
Now if i can get someone to interpret these numbers and tell me did it answer the question i asked about the glow plugs or hard starting. Scangauge does not have a Oil Pressure gauge. i looked all through the programming and can't find it anywhere.
Trans Temp. TFT -104
Engine oil temp. EOT - 166
Injector control pressure - 576 - 585
Mass fuel Desired - MFD - 9.0
Volume fuel desired - VFD - 11.1
Exhaust Back Pressure - EBP - 6.3
Manifold Air Temp - MAT - 40
FICM Main Power - FMP - 48.5
FICM Logic Power - FLP - 12.5
FICM cam and crank position Sync - SYC - 1
IRP Duty Cycle - IRP - 23.4
VREF Calibration Voltage Input - CVI - 4.96
Intake air temp - IA2 - 101
VGT Duty Cycle - VGT - 0
Boost - BST - 0.01
Now if i can get someone to interpret these numbers and tell me did it answer the question i asked about the glow plugs or hard starting. Scangauge does not have a Oil Pressure gauge. i looked all through the programming and can't find it anywhere.
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Lead Driver
Joined: Feb 2011
Posts: 8,241
Likes: 155
From: L.A. (Lower Alabama)
Nothing jumping out at me. EBP (Exhaust Back Pressure) isn't within spec but I don't think it's causing your starting issue. It could cause low boost once it's running though. I'd watch FICM when it's having a starting issue (or at least cold start) FMP should stay above 45v at all times. Also FLP, FVP and FICM sync.
Here is a list of proper values. I keep one in my truck to help my memory. https://www.ford-trucks.com/forums/a...1&d=1364848489
Here is a list of proper values. I keep one in my truck to help my memory. https://www.ford-trucks.com/forums/a...1&d=1364848489
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Thread Starter
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Mountain Pass
Joined: Sep 2014
Posts: 126
Likes: 1
From: Trenton Florida
Nothing jumping out at me. EBP (Exhaust Back Pressure) isn't within spec but I don't think it's causing your starting issue. It could cause low boost once it's running though. I'd watch FICM when it's having a starting issue (or at least cold start) FMP should stay above 45v at all times. Also FLP, FVP and FICM sync.
Here is a list of proper values. I keep one in my truck to help my memory. https://www.ford-trucks.com/forums/a...1&d=1364848489
Here is a list of proper values. I keep one in my truck to help my memory. https://www.ford-trucks.com/forums/a...1&d=1364848489
the low EBP is probably from not having a cat or muffler of it. straight pipe to the back.
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Joined: Aug 2001
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EBP, MAP and BARO should match within .5 psi of each other KOEO.
At idle MAP and BARO will remain relatively close and EBP should be under 16 psi.
VGT % is off as well.
However, none of that effects cold start.
Josh
Fleet Mechanic
Joined: Aug 2012
Posts: 1,760
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FICM Logic Power - FLP - 12.5
This is a little low IMO. The SG2 doesn't read as high as at the batts but should be over 13v. You can check the volts at the battery for a more accurate reading.
What are FICM main volts at cold start?
.
This is a little low IMO. The SG2 doesn't read as high as at the batts but should be over 13v. You can check the volts at the battery for a more accurate reading.
What are FICM main volts at cold start?
.
Thread Starter
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Mountain Pass
Joined: Sep 2014
Posts: 126
Likes: 1
From: Trenton Florida
13.1Volts.
Thread Starter
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Mountain Pass
Joined: Sep 2014
Posts: 126
Likes: 1
From: Trenton Florida
ok, this morning about 34 degrees and went to start it and would not fire off at first so i shut key off and turned back on long enough for the glow plug light to go off. did this about 6 times and it fired right up. seems the glow plugs are not staying on long enough if i just turn the key on and try to start when the light goes out.
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
The PCM will command the plugs to stay on X amount
of time depending on a few things. But they may not
produce the heat needed do to low batteries.
You need to take both batteries out and have them
load tested separately. Then also do a check of the
specific gravity of each cell before and after charging.
If you get on that is not passing then you need to replace
both batteries.
In the interim plug the heater in and see how it does.
Sean
of time depending on a few things. But they may not
produce the heat needed do to low batteries.
You need to take both batteries out and have them
load tested separately. Then also do a check of the
specific gravity of each cell before and after charging.
If you get on that is not passing then you need to replace
both batteries.
In the interim plug the heater in and see how it does.
Sean