Sending Unit
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4wd Low
Joined: Mar 2023
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but now that you mention, there’s two coolant sensors?? I only knew of the one I’ve replaced and my gauge still doesn’t work. Where is the second one located?
Lead Driver
Joined: Jun 2013
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From: Tolland, CT
Have you asked google where the location is...
https://www.google.com/search?q=1984...hrome&ie=UTF-8
https://www.google.com/search?q=1984...hrome&ie=UTF-8
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From: Virginia
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FTE Legend
Joined: Nov 2015
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From: Angier, NC
Only thing I can figure, it was Ford's way to overcome their lousy gauges. 
Ok kicks on a light when over heating got it.
My 02 Durango sounds an alarm when the gauge gets in the high range so I found out once when pulling my car trailer and stuck in traffic.
Come to find out the electric pusher fan that runs when the AC is on was failing.
You did not see this at speed as air was pushed thru the condenser & radiator.
Dave ----
Ok kicks on a light when over heating got it.
My 02 Durango sounds an alarm when the gauge gets in the high range so I found out once when pulling my car trailer and stuck in traffic.
Come to find out the electric pusher fan that runs when the AC is on was failing.
You did not see this at speed as air was pushed thru the condenser & radiator.
Dave ----
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Moderator
Joined: Jan 2001
Posts: 56,965
Likes: 2,725
From: Virginia
Only thing I can figure, it was Ford's way to overcome their lousy gauges.
Ok kicks on a light when over heating got it.
My 02 Durango sounds an alarm when the gauge gets in the high range so I found out once when pulling my car trailer and stuck in traffic.
Come to find out the electric pusher fan that runs when the AC is on was failing.
You did not see this at speed as air was pushed thru the condenser & radiator.
Dave ----
Ok kicks on a light when over heating got it.
My 02 Durango sounds an alarm when the gauge gets in the high range so I found out once when pulling my car trailer and stuck in traffic.
Come to find out the electric pusher fan that runs when the AC is on was failing.
You did not see this at speed as air was pushed thru the condenser & radiator.
Dave ----
Moderator
Joined: Jan 2001
Posts: 56,965
Likes: 2,725
From: Virginia
To the original thread starter; I am getting conflicting info as to if the 1986 diesel had the two senders for the temp gauge. Some say it did, but I looked in the 1986 diagrams and it does not show it wired that way. I know my 1989 is wired that way, but the earlier diesel trucks may not be. If you can't find the other sender, then do not worry about it.
Lead Driver
Joined: Apr 2002
Posts: 5,261
Likes: 1,226
MTS COMPANY, L.C. - Plastic fuel tanks for Jeep, Ford, Chevy, Scout, ******, and Toyota
also check with summit racing. They stock a lot of parts for our trucks. Quick shipping!
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
There are THREE different types! Which one of these three different sending units matches your criteria?
E3TZ-9275-D .. Mid-Ship Fuel Tank Sending Unit / Obsolete
1983/84 F250/350 with 6.9L Diesel
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E3TZ-9275-E .. Aft Axle Fuel Tank Sending Unit / Obsolete
1983/84 F250/350 with 6.9L Diesel with 133" - 155" & 159" wheelbases.
---------------------------------------------------------------------------------
E3TZ-9275-F .. Aft Axle Fuel Tank Sending Unit / Obsolete
1983/84 F250/350 with 6.9L Diesel with 137" wheelbase.
Logistics Pro
Joined: Jun 2017
Posts: 3,946
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From: Edmond, OK
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