From the Reference Section:
- How to wire the Switch Pitch on a Buick Transmission
- 1950 Wiring Diagrams
- 1951 Wiring Diagrams
- 1952 Wiring Diagrams
- 1955 Wiring Diagrams
- 1957 Wiring Diagrams
- 1964 Wiring Diagrams
- 1966 Wiring Diagrams
- 1967 Wiring Diagrams
- 1968 Wiring Diagrams
- 1972 Wiring Diagrams
- 1975 Wiring Diagrams
Results 1 to 3 of 3

Thread: 55 Buick special 46C gas tank sender and gauge issue

  1. #1
    Join Date
    Aug 2018
    Location
    Hartland,
    Posts
    2
    Rep Power
    0

    55 Buick special 46C gas tank sender and gauge issue

    Hi, My name is John. My BCA member number is12138. I have 2 Buicks , 1928 54 Master Roadster and 1955 Special Convertible 46C (Grand Nat'l First in AACA in 1991) I have a problem with the gas gauge in my 55 Special convertible. When I turn the ignition to ON the needle tops out beyond Full. When the Ignition is OFF it goes to empty. I purchased a new sending unit and went to the bench and connected the gauge in a used cluster that I had on hand from a parts car and also I purchased a used cluster from an on-line vendor. I have connected both on the bench with 12 volt feed and they do not register the empty to full range when I move the float arm up and down. Should the gauge respond on the bench? I do not want to re install the tank until I know the system is going to function. HELP

  2. #2
    Join Date
    Sep 1999
    Location
    Dbl Oak,TX
    Posts
    745
    Rep Power
    25
    John, yes the bench test should work. Hookup would be:

    Battery (+) to IGN terminal on gauge
    Battery (-) to cluster case and to sender unit case
    Jumper wire from sender unit terminal to unmarked gauge terminal

    When the gauge pegs out past FULL with power applied, that indicates a broken wire or bad connection somewhere. Maybe it is something easy like the connector in the brown wire in the trunk has come loose.

    Attached is the page from the shop manual which gives more detail.
    Attached Images Attached Images
    What has been, can be again. (Bob Wills, 1942)

  3. #3
    Join Date
    Aug 2018
    Location
    Hartland,
    Posts
    2
    Rep Power
    0

    55 Buick gas tank sender and gauge issue

    Thank you Todd. My new tank sending unit and gauge in the car are working. For sure my problem was a bad sender. Seems the contacts inside got corroded from sitting or oxidation from ethanol in the gas? I was concerned that my gauge was faulty. I discovered that the sender plug-in on the gauge got disconnected when I removed the defrost hose and nozzle on the drivers side. I was preparing to replace the gauge.I am humbled by my oversight but a visual of the gauge contacts is difficult at my age. I have the dash top plate removed and plan to replace all bulbs and lube the speedometer cable while i can access them from the top side.
    John

Similar Threads

  1. 2002 LeSabre DIC/Temp Gauge Sender Location
    By penticton in forum Electrical and Gauges
    Replies: 2
    Last Post: 11-13-2016, 08:47 AM
  2. 12V fuel sender with 24V gauge
    By krinkov58 in forum Restoration Talk
    Replies: 10
    Last Post: 07-14-2011, 06:47 PM
  3. 1946 Fuel gauge & sender
    By Jyrki in forum Straight Eights!
    Replies: 5
    Last Post: 01-26-2011, 10:05 AM
  4. Temperature Sender / Gauge for 263
    By 53_Jeff in forum Straight Eights!
    Replies: 1
    Last Post: 09-24-2010, 04:52 PM
  5. Temperature Gauge Sender Location
    By 1955 fink in forum Nailhead: 264, 322, 364, 401, 425
    Replies: 1
    Last Post: 05-28-2004, 05:14 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
TeamBuick.com Privacy Policy