1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Gauge vs. Sending unit

Thread Tools
 
Search this Thread
 
  #16  
Old 03-05-2017, 10:16 AM
PEZLO's Avatar
PEZLO
PEZLO is offline
5th Wheeling
Thread Starter
Join Date: Oct 2016
Posts: 30
Received 0 Likes on 0 Posts
Originally Posted by ben73058
Hey Pezlo,
Welcome Aboard! It's good to see another '50 getting restored.
Post some pics when you get a chance. Abe is a good frequent contributor here - he's not a bad guy. Hang in there keep asking questions.


Ben in Austin
1950 F1 (351W/AOD)
Thanks Ben I appreciate that, I'm sure your right. Here's a link to some truck picks. https://www.ford-trucks.com/forums/1...l#post16689580

Paul
 
  #17  
Old 03-05-2017, 11:32 AM
PEZLO's Avatar
PEZLO
PEZLO is offline
5th Wheeling
Thread Starter
Join Date: Oct 2016
Posts: 30
Received 0 Likes on 0 Posts
Thanks Terry,

I do have both. I'm really not to familiar with the multimeter. I was trying to use it to understand the positive ground system on the battery yesterday but I think that only confused me more. So would I set it to volts, touch the black lead to panel mounting bracket and the red to either of the 2 metal strips linking the three gauges? And what type of reading should I get 6.0V?

Do you know what this switch in the picture I have circled does? There's also one to the right just outside of view that I can't tell what it does either.



Can you tell if this is this the correct Diagram for my starter?





 
  #18  
Old 03-05-2017, 11:43 AM
cowdog86's Avatar
cowdog86
cowdog86 is offline
Senior User
Join Date: Aug 2016
Location: Miles City, Mt
Posts: 217
Likes: 0
Received 0 Likes on 0 Posts
It won't hurt a thing to run a ground wire for you gauge cluster. In fact, my starter button works much better after I replaced it with one with 2 terminals and ran one to the ground on voltage regulator. It's your truck. Have fun with it.
 
  #19  
Old 03-05-2017, 12:13 PM
abe's Avatar
abe
abe is online now
One Meadow Green Owner

Join Date: Dec 2000
Location: Central PA
Posts: 22,181
Received 2,616 Likes on 1,456 Posts
Originally Posted by abe
The instrument panel is grounded by metal to metal contact to the truck.
Originally Posted by ALBUQ F-1
For the BonusBuilt trucks, the ground for the instrument panels/gauges are pretty much the retaining clips holding them into the dash. I don't recall a dedicated wire for grounding. That's why there are often gauge problems after painting. You can certainly run a ground wire to something under the dash that is clean steel.
Originally Posted by ALBUQ F-1
The wire going to the ignition switch is NOT a ground, it's hot (power).The ground is the case of the instrument to the dash (or add a wire as I added above).
Pezlo, I see you are relatively new to FTE, so let me welcome you to our great Ford truck forum. Even though I have owned my 54 since 1977, I am not the most confident mechanically. But the fellas here, like Ross, have helped me tremendously.

Perhaps, it is after 33 years of teaching high school students I get frustrated when people don't read carefully and see what has already been said. But no excuses. I am sorry I yelled at you in all caps!

Good luck with your gauges. I hope you can solve your problem.
 
  #20  
Old 03-05-2017, 01:06 PM
Jersey devil's Avatar
Jersey devil
Jersey devil is offline
Mountain Pass
Join Date: Nov 2015
Location: South Jersey
Posts: 189
Received 36 Likes on 14 Posts
Pezlo

All of the info you need to solve your gauge issue has been presented.

I am willing to "walk you through it" if you give me a call. 856-912-2711.

Tom
 
  #21  
Old 03-05-2017, 04:36 PM
Overkill-F1's Avatar
Overkill-F1
Overkill-F1 is offline
Elder User
Join Date: May 2004
Location: BC, Canada
Posts: 533
Likes: 0
Received 1 Like on 1 Post
Originally Posted by PEZLO
Thanks Terry,

I do have both. I'm really not to familiar with the multimeter. I was trying to use it to understand the positive ground system on the battery yesterday but I think that only confused me more. So would I set it to volts, touch the black lead to panel mounting bracket and the red to either of the 2 metal strips linking the three gauges? And what type of reading should I get 6.0V?

Do you know what this switch in the picture?

Can you tell if this is this the correct Diagram for my starter?
Pezlo,
When you use your voltmeter:
-set it on the DC volts scale 12 volts or more if it has more than one DC setting,
-connect the red test lead (positive or +) to a nice clean piece of the dash, frame or the positive battery connection, (a good ground in other words)
-use the black test lead (negative or -) to see if you have any voltage on the metal strips on the back of the gauges when the ignition switch is "ON". This will tell you that voltage is getting to the gauges.
If you are getting 6 volts on the metal strips, move your red lead to a clean piece of the gauge cluster mount on the back and re-test to see if you have 6 volts to the metal strips. This will tell you that you have voltage and ground to the gauges.
If you are not getting any voltage to the metal strips, I would move my black test lead to the circuit breakers. You should have voltage there at all times, ignition switch ON or OFF.

I don't know if the diagram is correct for your truck or not.
I don't know what those switches are for.
Good luck testing...Terry
 
  #22  
Old 03-05-2017, 08:23 PM
ALBUQ F-1's Avatar
ALBUQ F-1
ALBUQ F-1 is online now
Fleet Owner
Join Date: Jul 2004
Location: NM
Posts: 26,802
Received 607 Likes on 377 Posts
There is a switch on the underside of the dash to the left of the steering column to turn the instrument panel lights on and off (when the headlights are also on).

The diagram looks correct except the coil is wired backwards; (+) side of the coil goes to the distributor.

It would help a lot if you could put the year and model of your truck in your Signature, which you can do in UserCP (user control panel) at the top of the screen.
 
  #23  
Old 03-06-2017, 04:18 PM
PEZLO's Avatar
PEZLO
PEZLO is offline
5th Wheeling
Thread Starter
Join Date: Oct 2016
Posts: 30
Received 0 Likes on 0 Posts
Originally Posted by Overkill-F1
Pezlo,
When you use your voltmeter:
-set it on the DC volts scale 12 volts or more if it has more than one DC setting,
-connect the red test lead (positive or +) to a nice clean piece of the dash, frame or the positive battery connection, (a good ground in other words)
-use the black test lead (negative or -) to see if you have any voltage on the metal strips on the back of the gauges when the ignition switch is "ON". This will tell you that voltage is getting to the gauges.
If you are getting 6 volts on the metal strips, move your red lead to a clean piece of the gauge cluster mount on the back and re-test to see if you have 6 volts to the metal strips. This will tell you that you have voltage and ground to the gauges.
If you are not getting any voltage to the metal strips, I would move my black test lead to the circuit breakers. You should have voltage there at all times, ignition switch ON or OFF.

I don't know if the diagram is correct for your truck or not.
I don't know what those switches are for.
Good luck testing...Terry
Thanks Terry I'll give this a run through and see what I can find. 👍
 
  #24  
Old 03-06-2017, 04:22 PM
PEZLO's Avatar
PEZLO
PEZLO is offline
5th Wheeling
Thread Starter
Join Date: Oct 2016
Posts: 30
Received 0 Likes on 0 Posts
Originally Posted by ALBUQ F-1
There is a switch on the underside of the dash to the left of the steering column to turn the instrument panel lights on and off (when the headlights are also on).

The diagram looks correct except the coil is wired backwards; (+) side of the coil goes to the distributor.

It would help a lot if you could put the year and model of your truck in your Signature, which you can do in UserCP (user control panel) at the top of the screen.
Hey Ross,
that makes since why the switch wasn't doing anything. Good advice on the signature too. It won't see to let me change it on my phone. It seems to have a limited menu. I'll jump on the computer when I cane and update.
Thanks!
 
  #25  
Old 03-06-2017, 04:23 PM
PEZLO's Avatar
PEZLO
PEZLO is offline
5th Wheeling
Thread Starter
Join Date: Oct 2016
Posts: 30
Received 0 Likes on 0 Posts
Originally Posted by abe
Pezlo, I see you are relatively new to FTE, so let me welcome you to our great Ford truck forum. Even though I have owned my 54 since 1977, I am not the most confident mechanically. But the fellas here, like Ross, have helped me tremendously.

Perhaps, it is after 33 years of teaching high school students I get frustrated when people don't read carefully and see what has already been said. But no excuses. I am sorry I yelled at you in all caps!

Good luck with your gauges. I hope you can solve your problem.
Thanks Abe I appreciate that.
 
  #26  
Old 03-08-2017, 01:06 PM
PEZLO's Avatar
PEZLO
PEZLO is offline
5th Wheeling
Thread Starter
Join Date: Oct 2016
Posts: 30
Received 0 Likes on 0 Posts
Originally Posted by PEZLO
Thanks Terry I'll give this a run through and see what I can find. 👍
I am getting a reading of 5 Volts on the strips and the circuit breaker of the instrument panel. I was thinking about it last night and can I the same test the end of the wires where they connect to the sending units to see if the sending unit is getting power to send a signal or does it not work that way?
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hombre427
Electrical Systems/Wiring
1
01-15-2019 05:24 PM
johnmel59
1961 - 1966 F-100 & Larger F-Series Trucks
10
10-31-2018 01:53 PM
clinte89
1973 - 1979 F-100 & Larger F-Series Trucks
16
03-09-2015 07:11 PM
liv2roc
1973 - 1979 F-100 & Larger F-Series Trucks
3
01-06-2013 11:23 AM
joel79ford
1973 - 1979 F-100 & Larger F-Series Trucks
6
01-16-2012 11:34 PM



Quick Reply: Gauge vs. Sending unit



All times are GMT -5. The time now is 08:04 PM.