2000 7.3L Excursion Starting Issues
Logistics Pro
Joined: Jan 2014
Posts: 3,595
Likes: 17
Agreed, when I was stock my GH tunes barely smoked in any setting. The only reason I puke black smoke now is the sticks are still too big for even the 38R. If I had an optimal setup, it wouldn't smoke as bad at all. Properly tuned setups should have minimal soot (exception of turbo spool), then clear to a haze in boost at WOT.
Post Fiend
Joined: Mar 2015
Posts: 5,277
Likes: 32
From: Blairsville, Pennsylvania
What fuel additive are you using for temps in the low teens?
I recommend Power Service in the WHITE bottle for cold temps.
Diesel Fuel Supplement +Cetane Boost | Power Service
Also, you turn the key on and wait about 15 secs before cranking, for the glowplugs to work, right?
I recommend Power Service in the WHITE bottle for cold temps.
Diesel Fuel Supplement +Cetane Boost | Power Service
Also, you turn the key on and wait about 15 secs before cranking, for the glowplugs to work, right?
5th Wheeling
Joined: Nov 2010
Posts: 31
Likes: 0
Might be batteries are just week enough and glow plugs lighting drug them down enough to not fire the truck. If they are down on power it will still crank fast but not light off. May want to put a volt meter in while it cranks.
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Cross-Country
Joined: Feb 2016
Posts: 68
Likes: 0
so, truck would only start when plugged in. and fired right up each time after being plugged in. both the glow plug and intake heater relay turned out to be bad. waiting to swap these out, will post up if still no dice.
I have to investigate the tune, to see whats going on with that. fun fun. thanks for the input everyone!
I have to investigate the tune, to see whats going on with that. fun fun. thanks for the input everyone!
5th Wheeling
Joined: Nov 2010
Posts: 31
Likes: 0
A Excursion does not use a glow plug relay, it has a glow plug controller like whats used on the 6.0 and i believe the california deisel trucks. It should be above the right side valve cover with a green and a black connector from the harness. My connectors burnt up on mine and had to use the 6.0 conversion pigtails from Ford for mine. Same connectors just the wire colors are swapped.
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Cross-Country
Joined: Feb 2016
Posts: 68
Likes: 0
A Excursion does not use a glow plug relay, it has a glow plug controller like whats used on the 6.0 and i believe the california deisel trucks. It should be above the right side valve cover with a green and a black connector from the harness. My connectors burnt up on mine and had to use the 6.0 conversion pigtails from Ford for mine. Same connectors just the wire colors are swapped.
Post Fiend
Joined: Mar 2015
Posts: 5,277
Likes: 32
From: Blairsville, Pennsylvania
Do you mean the AIH?
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Cross-Country
Joined: Feb 2016
Posts: 68
Likes: 0
its got both the relays, the air intake heater relay and glow plug relay.. any official documentation from ford that states ALL excursions had the glow plug module? we jumped the relay and it fired right up
Logistics Pro
Joined: Jan 2014
Posts: 3,595
Likes: 17
Supposedly every Excursion was built to California emissions.
Post up a picture of your engine bay bud, this isn't making much sense...
Yes that stupid thing
Post up a picture of your engine bay bud, this isn't making much sense...
Yes that stupid thing
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Joe (GaugePro) changed his wife's Excursion to a GPR setup, removing the GPCM.
Only Ford employees with a password have access, unless you know the password of a Ford employee.
Stewart
Fleet Mechanic
Joined: Mar 2013
Posts: 1,576
Likes: 41
From: Wyoming
This exact same thing happened to me.
1999 Ford 7.3 powerstroke F250.
Bought it new and in 2010 it cranked but no start. Cranked good too. 5 min later battery's were dead from cranking. Put jumpers on from work truck and 10 min later it fired right up.
Replaced the 10 yr old batteries with new ones and problem was fixed.
Was told starter took all voltage and low voltage would not activate some electronic device needed to initiate the fire up sequence.
1999 Ford 7.3 powerstroke F250.
Bought it new and in 2010 it cranked but no start. Cranked good too. 5 min later battery's were dead from cranking. Put jumpers on from work truck and 10 min later it fired right up.
Replaced the 10 yr old batteries with new ones and problem was fixed.
Was told starter took all voltage and low voltage would not activate some electronic device needed to initiate the fire up sequence.
Thread Starter
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Cross-Country
Joined: Feb 2016
Posts: 68
Likes: 0
Yes to both.
Joe (GaugePro) changed his wife's Excursion to a GPR setup, removing the GPCM.
Yes, it's in their Online Automotive System Information Service database. OASIS for short.
Only Ford employees with a password have access, unless you know the password of a Ford employee.
Stewart
Joe (GaugePro) changed his wife's Excursion to a GPR setup, removing the GPCM.
Yes, it's in their Online Automotive System Information Service database. OASIS for short.
Only Ford employees with a password have access, unless you know the password of a Ford employee.
Stewart
turns out it does have the manual relay, and got it all sorted out. the relay wasn't grounding (after I went and bought two relays), either how the prior owners set it up or that the 'diode' in the pcm is dead and wasn't sending the signal to ground. anyways, got it working wiring it up to a switch. so far has fired up each time. thanks to all for the input, much appreciated.
Super Moderator
Joined: May 2004
Posts: 29,380
Likes: 118
From: Central Coast of CA
Ford switched from the GPR to the GPCM on the 7.3L Excursion on October 24, 1999.
Excursion GPR to GPCM Switch-Over Date Information
Stewart
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