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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Low Coolant Sensor Help.

  • Thread starter Thread starter billison
  • Start date Start date Apr 6, 2016

billison

I like tinted tail
15 Year Member
Feb 27, 2006
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Apr 6, 2016
#1
  • Apr 6, 2016
  • #1
ok, I picked up a overflow with low coolant light for my 88 gt. My original set up was replaced with a jug zip tied in the fender ( classy), so I'd like to restore it to a proper set up.

So I found a original overflow with sensor. I've confirmed that the light works from jumping the connector. I can't however get the sensor to turn on the light. I've cleaned the connection, cleaned everything I can think of. Using my meter, with the harness in, I've checked for power while moving the float- nothing, I've checked to continuity - nothing.. I'm not sure what to check before I return this.

To be clear, the 87-89 is different than the 90-93.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
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Apr 7, 2016
#2
  • Apr 7, 2016
  • #2
If you have 0 continuity in both extremes of the switch's movement, I would suspect the float is bad
 

billison

I like tinted tail
15 Year Member
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Apr 7, 2016
#3
  • Apr 7, 2016
  • #3
I honestly can't even figure out how the thing works. I'm honestly thinking I'll just try to get a refund and get a new unit.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,300
18,006
224
Massachusetts
Apr 7, 2016
#4
  • Apr 7, 2016
  • #4
Pics of unit?


Where did you get it from? I've been looking for one for the same reasons
 

billison

I like tinted tail
15 Year Member
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Apr 7, 2016
#5
  • Apr 7, 2016
  • #5
I'll snap some tonight. I found a guy who deals in second hand parts.
 

billison

I like tinted tail
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Apr 8, 2016
#6
  • Apr 8, 2016
  • #6
Pics
 

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billison

I like tinted tail
15 Year Member
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Apr 8, 2016
#7
  • Apr 8, 2016
  • #7
.
 

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billison

I like tinted tail
15 Year Member
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Apr 8, 2016
#8
  • Apr 8, 2016
  • #8
..
 

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billison

I like tinted tail
15 Year Member
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Apr 8, 2016
#9
  • Apr 8, 2016
  • #9
...
 

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billison

I like tinted tail
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Apr 8, 2016
#10
  • Apr 8, 2016
  • #10
....
 

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84Ttop

They make new pistons every day, so why worry?
5 Year Member
Jul 2, 2009
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Apr 8, 2016
#11
  • Apr 8, 2016
  • #11
The float switch simply makes or breaks a set of contacts, if you can't get continuity through the float in either position it is Kaput (technical term)
 

billison

I like tinted tail
15 Year Member
Feb 27, 2006
2,607
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Apr 8, 2016
#12
  • Apr 8, 2016
  • #12
That's where I get confused. There is nothing inside the cap that connects.. Almost like its magnetic or something.
 
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