Changed Oil Wont Crank
#11
08-10-2009, 02:48 PM
i can not recall if there is a sensor that makes the WTS light come on on a stroke. it should come on for a few seconds no matter what the temp is but stay on longer when it is cold.
What about Additives?
you must either add an anti-foaming additive to your oil or purchase a quality oil with the correct additive in it for anti-foaming. in my opinion, and you know what they say about opinions, adding lucas only makes the oil foam worse. all the major oils for diesels have anti-foaming agents in them, Dello, Rotella, Premium Blue, etc.
What about Additives?
you must either add an anti-foaming additive to your oil or purchase a quality oil with the correct additive in it for anti-foaming. in my opinion, and you know what they say about opinions, adding lucas only makes the oil foam worse. all the major oils for diesels have anti-foaming agents in them, Dello, Rotella, Premium Blue, etc.
#12
08-10-2009, 03:05 PM
Thats the way I understand it...light always comes on. Temp determines the lenth it stays on.
Need some PowerStroke guys (or gals) to chime in on the sensor/relay that could cause this.
Neat little experiment on the Oils and lucas additive...thanks for the link. should I change my oil again or just wait for the next oil change?
Need some PowerStroke guys (or gals) to chime in on the sensor/relay that could cause this.
Neat little experiment on the Oils and lucas additive...thanks for the link. should I change my oil again or just wait for the next oil change?
#14
08-10-2009, 03:49 PM
TSB 04-25-4
12/27/04
HARD START OR NO START - 7.3L
FORD:
2000-2003 E-Series, Excursion, F-Super Duty
This article supersedes TSB 04-22-8 to update Figure 1.
ISSUE
Some 7.3L vehicles equipped with the glow plug control module (GPCM), may exhibit a hard start or no start condition. This may be due to the GPCM connector.
ACTION
A new GPCM connector service kit, available for the 6.0L engine, can now be adapted to the 7.3L engine. Refer to the following Service Procedure.
SERVICE PROCEDURE
1. Inspect the GPCM connector for pin conditions such as; pin fit, pull out, bent, corrosion, etc.
a. If a concern is found, replace the GPCM connector with the kit. The kit contains a replacement connector with pigtail to be spliced into the existing harness.
DISREGARD THE INSTRUCTIONS INCLUDED IN THE KIT (WHICH ONLY APPLY TO 6.0L) AND REFER TO FIGURE 1 FOR WIRE SPLICING.
b. If no concerns are present, proceed with normal diagnosis.
The Glow Plug (GP) Relay Control is used to energize the glow plugs for assisting cold engine start-up. Engine Oil Temperature, battery positive voltage (B+), and Barometric Pressure (BARO) are used by the PCM to calculate glow plug on-time and the length of the duty cycle. On-time normally varies between 1 and 120 seconds . With colder oil temperatures and lower barometric pressures, the plugs are on longer. If battery voltage is abnormally high, the duty cycle is shortened to extend plug life. (The glow plug relay will only cycle on and off repeatedly when there is a system high voltage condition greater than 16 volts .)
An open in the glow plug relay circuit will render the glow plugs inoperative. A short circuit will result in a glow plug's always ON condition
The California glow plug system is composed of solid state Glow Plug Control Module (GPCM) , glow plugs and the associated wiring harness. The glow plug on-time is controlled by the Powertrain Control Module (PCM) and is a function of oil temperature, barometric pressure and battery voltage. The PCM enables the GPCM which drives the individual glow plugs. Glow plug on-time normally varies between 1 to 120 seconds . In addition to PCM control, the GPCM internally limits the glow plug operation to 180 seconds regardless of PCM commanded on-time. The power to the glow plugs is provided through the GPCM solid state drivers directly from the vehicle battery. The GPCM monitors and detects individual glow plug functionality, and the control and communication links to the PCM. The failures detected by the GPCM are passed to the PCM using a serial communication signal on the diagnostic line.
NOTE : Wait to start lamp on-time is independent from GPCM on-time.
The Glow Plug (GP) light signal controls the WAIT TO START indicator light located on the instrument panel. When the light goes off, the engine is ready to be started. As a bulb check, the light comes on every time a key on reset occurs, even though the glow plug system is not commanded on. On-time normally varies between 1 and 10 seconds . WAIT TO START light on-time is independent of glow plug relay on-time because the glow plugs may stay on to improve performance until engine reaches operating temperature.
An open circuit in the glow plug light wiring will result in an inoperative glow plug light. A short circuit will result in a glow plug light always ON condition.
To reduce white smoke during long idle periods at low ambient temperatures, the PCM will activate the intake air heater. Specific conditions must be present before the heater is activated:
ambient temperature must be below 0°C (32°F)
Engine Oil Temperature (EOT) must be below 55°C (131°F)
Vehicle Power (IVPWR) must be between 11.8 and 15.0 volts
parking brake must be applied on manual transmission vehicles
the transmission must be in PARK or NEUTRAL on automatic transmission vehicles
glow plugs must be off
Electronic Passive Anti-theft System
The Excursion is equipped with an Electronic Passive Anti-Theft System (EPATS) which prevents engine operation without the correctly encoded ignition key. For detailed information on the operation of this system, refer to Antitheft and Alarm Systems.
---AutoMerged DoublePost---
Next I would probably pull the reservoir plug and see if it had oil in it!
12/27/04
HARD START OR NO START - 7.3L
FORD:
2000-2003 E-Series, Excursion, F-Super Duty
This article supersedes TSB 04-22-8 to update Figure 1.
ISSUE
Some 7.3L vehicles equipped with the glow plug control module (GPCM), may exhibit a hard start or no start condition. This may be due to the GPCM connector.
ACTION
A new GPCM connector service kit, available for the 6.0L engine, can now be adapted to the 7.3L engine. Refer to the following Service Procedure.
SERVICE PROCEDURE
1. Inspect the GPCM connector for pin conditions such as; pin fit, pull out, bent, corrosion, etc.
a. If a concern is found, replace the GPCM connector with the kit. The kit contains a replacement connector with pigtail to be spliced into the existing harness.
DISREGARD THE INSTRUCTIONS INCLUDED IN THE KIT (WHICH ONLY APPLY TO 6.0L) AND REFER TO FIGURE 1 FOR WIRE SPLICING.
b. If no concerns are present, proceed with normal diagnosis.
The Glow Plug (GP) Relay Control is used to energize the glow plugs for assisting cold engine start-up. Engine Oil Temperature, battery positive voltage (B+), and Barometric Pressure (BARO) are used by the PCM to calculate glow plug on-time and the length of the duty cycle. On-time normally varies between 1 and 120 seconds . With colder oil temperatures and lower barometric pressures, the plugs are on longer. If battery voltage is abnormally high, the duty cycle is shortened to extend plug life. (The glow plug relay will only cycle on and off repeatedly when there is a system high voltage condition greater than 16 volts .)
An open in the glow plug relay circuit will render the glow plugs inoperative. A short circuit will result in a glow plug's always ON condition
The California glow plug system is composed of solid state Glow Plug Control Module (GPCM) , glow plugs and the associated wiring harness. The glow plug on-time is controlled by the Powertrain Control Module (PCM) and is a function of oil temperature, barometric pressure and battery voltage. The PCM enables the GPCM which drives the individual glow plugs. Glow plug on-time normally varies between 1 to 120 seconds . In addition to PCM control, the GPCM internally limits the glow plug operation to 180 seconds regardless of PCM commanded on-time. The power to the glow plugs is provided through the GPCM solid state drivers directly from the vehicle battery. The GPCM monitors and detects individual glow plug functionality, and the control and communication links to the PCM. The failures detected by the GPCM are passed to the PCM using a serial communication signal on the diagnostic line.
NOTE : Wait to start lamp on-time is independent from GPCM on-time.
The Glow Plug (GP) light signal controls the WAIT TO START indicator light located on the instrument panel. When the light goes off, the engine is ready to be started. As a bulb check, the light comes on every time a key on reset occurs, even though the glow plug system is not commanded on. On-time normally varies between 1 and 10 seconds . WAIT TO START light on-time is independent of glow plug relay on-time because the glow plugs may stay on to improve performance until engine reaches operating temperature.
An open circuit in the glow plug light wiring will result in an inoperative glow plug light. A short circuit will result in a glow plug light always ON condition.
To reduce white smoke during long idle periods at low ambient temperatures, the PCM will activate the intake air heater. Specific conditions must be present before the heater is activated:
ambient temperature must be below 0°C (32°F)
Engine Oil Temperature (EOT) must be below 55°C (131°F)
Vehicle Power (IVPWR) must be between 11.8 and 15.0 volts
parking brake must be applied on manual transmission vehicles
the transmission must be in PARK or NEUTRAL on automatic transmission vehicles
glow plugs must be off
Electronic Passive Anti-theft System
The Excursion is equipped with an Electronic Passive Anti-Theft System (EPATS) which prevents engine operation without the correctly encoded ignition key. For detailed information on the operation of this system, refer to Antitheft and Alarm Systems.
---AutoMerged DoublePost---
Next I would probably pull the reservoir plug and see if it had oil in it!
Last edited by mysterync; 08-10-2009 at 03:49 PM. Reason: Automerged Doublepost
#15
08-11-2009, 07:12 AM
thanks mystery....good info. I'm not very vehicle savy but by reservoir plug you mean the hpop? If so I have done that. If not I don't know what you are talking about.
Also in the info you provided it said the wait to start light is controled by the glow plug light signal...so I assume the glow plug light signal is controled by the glow plug control module. so if my logic is correct then it is most likely the glow plug control module thats is causing the intermitent no-start.
Now back to my non-vehicle-savy self.....where is that module what does it look like
Also in the info you provided it said the wait to start light is controled by the glow plug light signal...so I assume the glow plug light signal is controled by the glow plug control module. so if my logic is correct then it is most likely the glow plug control module thats is causing the intermitent no-start.
Now back to my non-vehicle-savy self.....where is that module what does it look like
#16
08-11-2009, 10:46 AM
NOTE : Wait to start lamp on-time is independent from GPCM on-time.
The Glow Plug (GP) light signal controls the WAIT TO START indicator light located on the instrument panel. When the light goes off, the engine is ready to be started. As a bulb check, the light comes on every time a key on reset occurs, even though the glow plug system is not commanded on. On-time normally varies between 1 and 10 seconds . WAIT TO START light on-time is independent of glow plug relay on-time because the glow plugs may stay on to improve performance until engine reaches operating temperature.
An open circuit in the glow plug light wiring will result in an inoperative glow plug light. A short circuit will result in a glow plug light always ON condition.
Even if the glow plugs didnt come on, With the current temps the truck should fire almost instantly. I vote eaither a oil problem or crank or cam sensor bad!
The Glow Plug (GP) light signal controls the WAIT TO START indicator light located on the instrument panel. When the light goes off, the engine is ready to be started. As a bulb check, the light comes on every time a key on reset occurs, even though the glow plug system is not commanded on. On-time normally varies between 1 and 10 seconds . WAIT TO START light on-time is independent of glow plug relay on-time because the glow plugs may stay on to improve performance until engine reaches operating temperature.
An open circuit in the glow plug light wiring will result in an inoperative glow plug light. A short circuit will result in a glow plug light always ON condition.
Even if the glow plugs didnt come on, With the current temps the truck should fire almost instantly. I vote eaither a oil problem or crank or cam sensor bad!
Thread
Thread Starter
Forum
Replies
Last Post
Durtyd09
5.9 Liter CR Dodge Cummins 03-07
3
11-11-2015 01:43 PM
vin_diesel
Alternative Fuels , Additives , Fluids
0
09-15-2015 11:25 AM
coors_man_2005
6.7 Liter Dodge Cummins 07.5-12
5
12-15-2014 10:23 AM
