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Fuel Gauge Sending Unit (Gage Sender Pump Hanger)

This category on the website [ Other Electrical Motors & Parts and Wiring ] we are giving you all of the information related to these assorted components in the Buick Turbo Regal, along with the associated wiring, connector plugs, etc.

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VEHICLE APPLICATION:

Buick Regal, T-Type, Turbo T, Limited, Grand National, GNX

ELECTRICAL MOTOR / PART NAME:

[called a wide variety of things that mean the same thing]
Fuel Gauge Sending Unit
Fuel Gage Sender
Fuel Sending Unit
Fuel Pump Hanger

PURPOSE OF ELECTRICAL MOTOR / PART:

identifies the level of fuel in the gas tank and relays that info to the fuel gauge

TURNS ON-OFF / FUNCTIONS / USED WHEN:

in constant use while the key is turned forward

LOCATION IN VEHICLE:

inside the gas tank

ORIGINAL GM PART NUMBER:

25092745

ELECTRICAL MOTOR / PART – BASE COLOR:

metal, plastic (white, black)

CONNECTOR PLUG COLOR (ELECTRICAL MOTOR / PART SIDE):

black

WIRES ATTACHED (ELECTRICAL MOTOR / PART SIDE):

2

CONNECTOR PLUG COLOR (HARNESS SIDE):

black

NUMBER OF WIRES ATTACHED (HARNESS SIDE):

2

COLOR & PURPOSE OF (HARNESS SIDE) WIRES:

black, goes to (junction) to ground
(junction connects with other things)

pink, goes to (junction) to fuel gage

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OTHER NOTES:

Aftermarket senders may have 3-4 wires attached to the plug that plugs into the sender.

The in-tank fuel sending unit is a rheostat type switch which measures the resistance (ohm’s). The float arm and float is attached to that switch, and depending on the fuel level in the gas tank, is translated into ohm’s which is read by the fuel gauge in the dash. Bending the float arm up or down will translate directly to the gauge (by way of the rheostat/ohms) which shows how much gas is in the tank.

full tank = 90 ohms; empty = 0 ohms

Aftermarket versions are much more reliable (AKA “accurate”) than stock versions.
[the “fuel pump pulsator” is usually eliminated, and high volume strainers are included, along with new o-ring gasket & lock ring]

[SEE Fuel Pump]
[SEE Fuel Pump Relay]

PHOTOS OF ELECTRICAL MOTOR / PART AND CONNECTED WIRES:
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Here’s a list of all of the Misc. Electrical Motors & Parts in the Buick Regal:
(click the links to go to the one you need info about)

* Air Conditioner Compressor & Clutch (A/C Compressor)
* Cigarette Lighter
* Fuel Gauge Sending Unit (Fuel Gage Sender)
* Fuel Injectors
* Fuel Pump
* Horn
* HVAC Blower Motor
* HVAC Fan Blower Resistor
* Power Antenna
* Power Door Lock Actuator (Motor)
* Power Window Motor
* Radiator Coolant Fan
* Radio (Stereo)
* Seat Belt Door Jamb Tensioner Release
* Speakers (4 & 6 Systems, Concert Sound)
* Sunroof Motor (Moonroof, Astroroof)
* Wiper Washer Motor

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