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Low Coolant Sensor Interchange

  • Thread starter Thread starter Mustang5L5
  • Start date Start date Dec 8, 2017

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
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Dec 8, 2017
#1
  • Dec 8, 2017
  • #1
Part of my list of goals is to stick and oem coolant overflow back in with my Efan, along with the low coolant sensor since that's the only warning light on my gauge pod that isn't hooked up.

87-89 sensors/bottles are resiculously overpriced, while 90-93 bottle/sensors are reproduced and more readily available (since only the GT had a low coolant sensor in 87-89

Do they interchange in terms of the wiring? Can I plug a 90-93 sensor into my '88 harness?
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,275
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Dec 14, 2017
#2
  • Dec 14, 2017
  • #2
To answer this hotly debated topic...

No, they do not interchange. The plug on the harness differs.

87-89 is a 2-wire sensor and 90-93 is 3-wire
 
Last edited: Dec 14, 2017
Reactions: Fordfreak93

Shakerhood

20+ Year Stangneter
Oct 28, 2004
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Dec 14, 2017
#3
  • Dec 14, 2017
  • #3
Can you use the Earlier Sensor in the Later Bottle?
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
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Dec 15, 2017
#4
  • Dec 15, 2017
  • #4
Shakerhood said:
Can you use the Earlier Sensor in the Later Bottle?
Click to expand...

I do not believe so, but CJponyparts lists a repro bottle that will accept either sensor. Unsure of the quality.

https://www.cjponyparts.com/radiator-overflow-tank-5-0l-1990-1993/p/ROFT/

Main issue is nobody reproduces the 87-89 sensor, and since it only came on the GT those years, they are a bit tough to find and expensive. Everytime I see one on ebay it's gone pretty fast.
 
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Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,275
17,964
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Massachusetts
Dec 15, 2017
#5
  • Dec 15, 2017
  • #5
So here's some part numbers.

Background pic, my original 1988 tank without coolant sensor. Part number e6ze-8c045-aa. Makes sense as 1986 had same bottle and no sensor available

Foreground, a 90-93 tank with sensor part number e7ze-8c045-aa and 1987 was the first year a sensor was offerered

Other than the different features for the cap, same damn bottle . Internal features are the same. So maybe you can use the 87-89 sensor here.
 
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billison

I like tinted tail
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Dec 16, 2017
#6
  • Dec 16, 2017
  • #6
Lmr has it covered.
 

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billison

I like tinted tail
15 Year Member
Feb 27, 2006
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Dec 16, 2017
#7
  • Dec 16, 2017
  • #7
I had a similar issue trying to get my low washer fluid light to work.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,275
17,964
224
Massachusetts
Dec 16, 2017
#8
  • Dec 16, 2017
  • #8
Awesome. Then I can use what I have.

Next step if finding an OEM Efan that fits the stock shroud cleanly. My SN95 fan is a tad too small
 

billison

I like tinted tail
15 Year Member
Feb 27, 2006
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Dec 16, 2017
#9
  • Dec 16, 2017
  • #9
When I used the mark7 Fan it fit great. The biggest thing was mounting it securely but discreetly
 
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