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

oil pressure gauge wiring

  • Thread starter Thread starter Gandalf79
  • Start date Start date Jun 3, 2024
G

Gandalf79

Member
Jun 14, 2023
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Jun 3, 2024
#1
  • Jun 3, 2024
  • #1
Ok you have all been so helpful with my threads, thank you!
My next question is a part two to my oil pressure thread posted awhile back. I do have oil pressure according to my external gauge kit but I want to get my original gauge to read. Anyone have the wiring diagram for the gauge cluster for a 79? I have a lone black wire dangling down to the floor from the harness and hoping thats it. There were some wires pulled from their positions from the previous owner that had to be re seated.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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#2
  • Jun 3, 2024
  • #2
Gandalf79 said:
Ok you have all been so helpful with my threads, thank you!
My next question is a part two to my oil pressure thread posted awhile back. I do have oil pressure according to my external gauge kit but I want to get my original gauge to read. Anyone have the wiring diagram for the gauge cluster for a 79? I have a lone black wire dangling down to the floor from the harness and hoping thats it. There were some wires pulled from their positions from the previous owner that had to be re seated.
Click to expand...
Do you know if the sending unit is good?
 
G

Gandalf79

Member
Jun 14, 2023
61
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18
Jun 3, 2024
#3
  • Jun 3, 2024
  • #3
limp said:
Do you know if the sending unit is good?
Click to expand...
I bought and installed new one recently. I tested the pressure directly from the motor recently and it starts cold at about 50 or so and idles down to about 22.
Im either going to figure out the wiring or install an external gauge if need be,
I could also replace sending unit wire as well. Guessing that goes to the gauge or the cluster?
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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#4
  • Jun 3, 2024
  • #4
You need this....
Pardon Our Interruption...
 
G

Gandalf79

Member
Jun 14, 2023
61
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18
Jun 3, 2024
#5
  • Jun 3, 2024
  • #5
limp said:
You need this....
Pardon Our Interruption...
Click to expand...
I have the chilton book and I think it may have this in there. I will check, thank you!
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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#6
  • Jun 3, 2024
  • #6
Gandalf79 said:
I have the chilton book and I think it may have this in there. I will check, thank you!
Click to expand...
there should be step by step tests to diagnose the problem in your car...
Not sure about the Chilton, in my day they were always way to vague with too many models included in one book, but I have this manual for my 83 and I use it alot more than the 3 FSM manuals I have.....
 
Reactions: Nine Finger Wrenching and General karthief
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Jarhead67

5 Year Member
Nov 24, 2018
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Windsor Locks, Connecticut
Jun 8, 2024
#7
  • Jun 8, 2024
  • #7
Gandalf79 said:
Ok you have all been so helpful with my threads, thank you!
My next question is a part two to my oil pressure thread posted awhile back. I do have oil pressure according to my external gauge kit but I want to get my original gauge to read. Anyone have the wiring diagram for the gauge cluster for a 79? I have a lone black wire dangling down to the floor from the harness and hoping thats it. There were some wires pulled from their positions from the previous owner that had to be re seated.
Click to expand...
One of the harness plugs to the cluster has the wires for your gages. There shouldn’t be any wire hanging loose.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
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Jun 8, 2024
#8
  • Jun 8, 2024
  • #8
If you have a wire out at the sending unit them just use a DVM set for continuity and put one of the DVM leads on the end of that wire and the other lead on the end of the wire in the car and if if beeps then chances are that is it. If they are different colors then odds are they are not.
 
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