What is this Plug? - Ford Powerstroke Diesel Forum
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post #1 of 32 Old 06-08-2011, 08:49 AM Thread Starter
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What is this Plug?

I was re-routing the block heater cord the other day when I noticed this plug under the hood, right behind the driver side headlight.

Anyone got any ideas what it is for?





1997 F-250HD Extended Cab 4x4 7.3 Powerstroke
3" Down Pipe to 4" Exhaust (Stainless) ~ Tymar Intake w/ AFE Big Boost Filter ~ TS 6 Position Chip ~ HPOP Cross Over Line ~ Regulated Return ~ E-Fuel System ~ Intercooled ~ CCV Mod ~ Dual Aeroforce Interceptor Gauges ~ Dana 60 Swap
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post #2 of 32 Old 06-08-2011, 08:59 AM
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I asked the same question and never found out!

What is this plug for

1995 Ford Powerstroke F-250 4x4
Regular Cab Dually

Mods:
44" TSL super swampers
F150 Lariat seats
AFE Stainless exhaust
Hydroboost
Hi-Steer arm with drag link
Gauge faces all switched to white
3 POD pillar with Boost, EGT, Fuel Pressure
5.5" Shackle Reversal Kit
Southbend Single mass flywheel conversion
Southbend CON-OFE clutch kit
Tony Wildman 6 position chip
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post #3 of 32 Old 06-08-2011, 09:18 AM
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optional fog lights maybe? is it just on one side? where does the harness go?

-Matt

Late 99 (2/99) Black F250, CC LB 4x4 Lariat 214k. All Stock for the moment...

1995 PSD, ext cab, one wheel wonder , 297k miles, 30k on wvo. totaled 5/8/11 RIP This truck is for sale as a parts truck (Jason is about to receive forged rods, and drop kick his PMR's)
DB high torque starter
DIY 6637
Marinco Mod
DIY Electric fuel w/ wvo conversion

"A clean house is a sign of a mis-lead life."
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post #4 of 32 Old 06-08-2011, 10:29 AM Thread Starter
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Yes it is on one side only. The wiring for it goes Into the main harness that runs across the top of the header panel.

1997 F-250HD Extended Cab 4x4 7.3 Powerstroke
3" Down Pipe to 4" Exhaust (Stainless) ~ Tymar Intake w/ AFE Big Boost Filter ~ TS 6 Position Chip ~ HPOP Cross Over Line ~ Regulated Return ~ E-Fuel System ~ Intercooled ~ CCV Mod ~ Dual Aeroforce Interceptor Gauges ~ Dana 60 Swap
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post #5 of 32 Old 06-08-2011, 10:54 AM
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Do your trucks have ABS? Because to me it sure looks like an ABS plug.



2005 Lariat CCSB F-350 SRW
300,000 miles and going strong

Exterior
12" fabtech lift with 40" Xterrain's on M/T classic locks, Adjustable track bar, Bilstein 7100 reservoir shocks

Performance
Edge juice/attitude CTS, SCT with ID tunes, Snow meth. injection, Diamond eye 4" exhaust, 03 turbo, ARP studs, Sinister coolant filter

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2010 stone seats/console, pioneer avic d3 with backup camera/bluetooth

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Viair 450c compressor, dual 2.5 gallon tanks, air horns rated @115db
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post #6 of 32 Old 06-08-2011, 11:05 AM
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ABS was only offered on the rear of the trucks and the harness attaches to the core support right behind the driver headlight.

I tested it with the ignition on and nothing was hot, but I did not test it with the headlight switch turned on. Seems all the trucks I have thought to check for it have it though. Originally I was thinking it may be for a PTO device or a temp sensor for a rear view mirror that displays temp possibly.

1995 Ford Powerstroke F-250 4x4
Regular Cab Dually

Mods:
44" TSL super swampers
F150 Lariat seats
AFE Stainless exhaust
Hydroboost
Hi-Steer arm with drag link
Gauge faces all switched to white
3 POD pillar with Boost, EGT, Fuel Pressure
5.5" Shackle Reversal Kit
Southbend Single mass flywheel conversion
Southbend CON-OFE clutch kit
Tony Wildman 6 position chip

Last edited by OverkillMotorsports; 06-08-2011 at 11:22 AM.
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post #7 of 32 Old 06-08-2011, 02:38 PM
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I was wondering the same thing recently, I'm wondering if the harness is a universal type and that plug has a function on a different rig, say F150 or Bronco.

97 F350 CCLB 4x4 PSD
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post #8 of 32 Old 06-08-2011, 03:30 PM
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my f-150 doesnt have one like that at all up front, its a 95, im gonna check my truck now and see if its there too

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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post #9 of 32 Old 06-08-2011, 04:51 PM
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I believe its for the daytime running lamps. Feeds the module. The sold in Canada rigs had to have them.

Pete in San Ramon

2005 F250 6.0 4X4 Lariat CC short bed (stock)

1997 F250 7.3 4X4 XLT Reg. cab (stock)

1986 F250 6.9 4X4 XLT Gone but not forgotten



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post #10 of 32 Old 06-08-2011, 05:52 PM
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could we install them on our US rigs?

-Kris-
2011 f150 ecoboost 4x4 323/452 on php dyno 11/16/13
1995 CCLB DRW 324K
2001 CCLB DRW 319K
Dp tuner infinity, exhaust, intake, chipped, tricked, and wrecked


Quote:
Originally Posted by marine5811
The stock downpipe in an OBS is flat because I'm a ginger.
Quote:
Originally Posted by alberta 7.3
Finding a decent woman is like shopping for a used truck. You spend most of your time picking through the money pits, wrecks, and basket cases until you find one that you can tolerate
Quote:
Originally Posted by JJFLASH
Well at least you caught the loose bolts before they cause any damage. Nothing worse than a sloppy hole
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