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Buick 25168719 Fuel Pump

1982-1988 Buick

Customer Questions & Expert Answers (26)
GM 25168719 Fuel Pump
  • Part Description
    Pump,Fuel
  • Replaces
    25166252, 6472232, 25166717, 6472011
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Buick
    Manufacturer Part Number25168719
    Part DescriptionPump,Fuel
    Item Dimensions7.2 x 4.6 x 3.4 inches
    Item Weight1.10 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces25166252, 6472232, 25166717, 6472011
    ManufacturerGeneral Motors
    SKU25168719
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    1988, 1982-1985 Buick Century4 Cyl 2.5L, 6 Cyl 3.0L, 6 Cyl 3.8LCUSTOM 2 DOOR, CUSTOM 4 DOOR, CUSTOM STATION WAGON, LIMITED 2 DOOR, LIMITED 4 DOOR
    1982-1986 Buick Skylark4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 3.0L2 DOOR, 4 DOOR, CUSTOM, CUSTOM 2 DOOR, CUSTOM 4 DOOR, LIMITED, LIMITED 2 DOOR, LIMITED 4 DOOR, SOMERSET, T-TYPE
    1985-1986 Buick Somerset4 Cyl 2.5L, 6 Cyl 3.0LCUSTOM, LIMITED, LIMITED 2 DOOR, REGAL, REGAL LIMITED, SOMERSET, T-TYPE
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 25168719 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How does the fuel pump operate and what steps should be taken to test it for faults on Chevrolet Caprice? Posted by Customer
    A:
    The fuel pump is a sealed type actuated from the engine camshaft, utilizing a pushrod between the camshaft and the pump rocker, while 231 V6 engines have pumps driven directly from the camshaft eccentric without a pushrod. Servicing is not possible due to the sealed nature of the unit, but if a fault is suspected, a test can be performed. First, ensure there is gas in the fuel tank and disconnect the primary wire between the coil and the distributor to prevent engine firing when the starter motor is engaged for models from 1969 to 1974; for models from 1975 to 1981, disconnect the distributor wiring marked 'BAT'. Next, disconnect the fuel line from the carburetor and place its open end in a container. Finally, operate the starter motor and observe for well-defined spurts of fuel ejected from the open end of the line; if present, the pump is functioning correctly, otherwise, it should be replaced.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove and install a fuel pump on Chevrolet Caprice? Posted by Customer
    A:
    To take out the pump you need to unscrew the fuel inlet and outlet that should be done with a two wrenches approach in order to avoid severe harm on the pump and other connections. Fourthly, remove the fuel pump mounting bolts, the fuel pump, as well as the gasket provided. In the course where pushrod is required to be removed, then first remove the pipe plug or the pump adapter and the gasket if fitted. In the installation process of the pushrod, put the gasket sealant on the pipe plug or the gasket of the component, and fasten it in place with some heavy grease not applicable on the V6 engines. Place the new gasket then fit the pump as it located in the 231 V6 engine while the protruding part of the fuel pump's rocker arm depresses the camshaft, apply gasket sealant round the screw thread. Last of all, reattach the fuel lines, switch on the ignition and look for any dripping.
    Posted by GMPartsGiant Specialist
    Q:
    How to remove the fuel pump/sending unit assembly on Pontiac Fiero? Posted by Customer
    A:
    To remove the fuel pump/sending unit assembly, start by disconnecting the cable from the negative battery terminal. Then, relieve the fuel pressure. Next, remove the fuel tank. Inside the fuel tank, the fuel pump/sending unit assembly is held in place by a lockring mechanism. To unlock it, turn the inner ring clockwise until the locking cams are free of the retaining tangs. If the rings are too tight, gently knock them loose with a soft-face hammer. Carefully extract the fuel pump/sending unit assembly from the fuel tank, making sure not to bump it into the outer lockring. Inspect the condition of the rubber gasket and replace it if necessary. Also, inspect and clean the strainer on the lower end of the fuel pump. If needed, separate the fuel pump from the sending unit by pulling the pump assembly into the rubber connector and sliding it away from the bottom support. Take care not to damage the rubber insulator and fuel strainer. For installation, insert the fuel pump/sending unit assembly back into the fuel tank and turn the inner lockring counterclockwise until the locking cams are fully engaged by the retaining tangs. Finally, reinstall the fuel tank.
    Posted by GMPartsGiant Specialist
    Q:
    What is the location and function of the fuel pump on Pontiac Fiero? Posted by Customer
    A:
    The fuel pump is located in the fuel tank for both four-cylinder and V6 models and is non-repairable. When the key is turned on, the ECM activates the fuel pump relay for quick pressure buildup. If not started, the ECM waits for engine start, using the oil pressure switch as a backup if the relay fails. A malfunctioning relay may cause long cranking times. The ECM powers the fuel pump when ignition is on, relying on HEI distributor pulses. To test the pump, install a fuel pressure gauge and turn ignition on. If no pressure, check the fuse and wiring. For a good fuse but no pressure, test the pump by applying battery voltage. Inspect the system for pressure discrepancies, leaks, and faulty components, including the relay and connector.
    Posted by GMPartsGiant Specialist
    Q:
    What should be done after cleaning the block mounting surface and applying grease to the pushrod of the 1984 Buick Skylark? Posted by Customer
    A:
    After cleaning the block mounting surface and applying grease to the pushrod, the new gasket and pump should be installed and the hoses and lines should be reattached.
    Posted by GMPartsGiant Specialist
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    Q:
    What should you do if the pump location needs adjustment for the 1982 Buick Century? Posted by Customer
    A:
    Adjust the pump location if necessary by loosening the bracket screw and turning the pump.
    Posted by GMPartsGiant Specialist
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    Q:
    When does fuel flow to the carburetor for the 1984 Buick Century? Posted by Customer
    A:
    Fuel flows to the carburetor when the outlet line pressure is less than that maintained by the diaphragm spring.
    Posted by GMPartsGiant Specialist
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    Q:
    What should you do if the fuel pressure is too low during a fuel pressure check for the 1986 Chevrolet Astro? Posted by Customer
    A:
    If fuel pressure is too low, you should conduct a fuel pump volume check, and if volume is insufficient, inspect for fuel line restrictions. If no restrictions are found, replace the fuel pump.
    Posted by GMPartsGiant Specialist
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    Q:
    How do I begin the process of removing the mechanical fuel pump in carburetor-equipped 1986 Chevrolet Astro? Posted by Customer
    A:
    To begin, disconnect the negative battery cable to isolate the battery.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be inspected and cleaned during the fuel pump/sending unit assembly removal of the 1988 Chevrolet C1500? Posted by Customer
    A:
    Inspect the condition of the seal around the mouth of the lockring mechanism.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done if the pressure reading is low of the 1991 Chevrolet C1500? Posted by Customer
    A:
    Check for restrictions in fuel lines and filters, and inspect the fuel pump for issues.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done if there is suspected insufficient fuel delivery for the 1988 Chevrolet K1500? Posted by Customer
    A:
    Start by inspecting all fuel lines for leaks.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done before checking the fuel pump output and pressure for the 1995 Chevrolet S10? Posted by Customer
    A:
    Ensure that there is enough fuel in the tank and relieve the fuel pressure.
    Posted by GMPartsGiant Specialist
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    Q:
    How is the fuel pump/sending unit assembly removed from the fuel tank for the 1991 Chevrolet K1500? Posted by Customer
    A:
    First, relieve the fuel pressure and remove the fuel tank. The fuel pump/sending unit assembly is located inside the fuel tank and is held in place by a cam lockring mechanism. To unlock the assembly, turn the lockring counterclockwise with a hammer and a brass punch. It's important not to use a steel punch to avoid sparking and the risk of an explosion. Carefully extract the fuel pump/sending unit assembly from the tank, taking care not to bump the fuel level float and sending unit into the lockring during removal to avoid affecting the accuracy of the sending unit.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the first step to remove the fuel pump/sending unit assembly for the 1994 Chevrolet S10? Posted by Customer
    A:
    The first step is to relieve the fuel system pressure and disconnect the cable from the negative battery terminal.
    Posted by GMPartsGiant Specialist
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    Q:
    What additional step is required for the V6 1989 Pontiac Firebird? Posted by Customer
    A:
    For V6 models, remove the pushrod.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the final step after installing the new pump for the 1984 Oldsmobile Cutlass? Posted by Customer
    A:
    The final step is to reconnect the fuel pipes, start the engine, and check for any leaks.
    Posted by GMPartsGiant Specialist
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    Q:
    What is the first step to remove the fuel pump/sending unit assembly of the 1994 GMC Sonoma? Posted by Customer
    A:
    The first step is to relieve the fuel system pressure and disconnect the cable from the negative battery terminal.
    Posted by GMPartsGiant Specialist
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    Q:
    What could be the possible causes if the pressure is still low with the return line restricted of the 1994 GMC Sonoma? Posted by Customer
    A:
    There may be a leaking injector or a faulty fuel pump.
    Posted by GMPartsGiant Specialist
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    Q:
    Where is the fuel pump located on the V6 and V8 1990 Pontiac Firebird? Posted by Customer
    A:
    On V6 models, the fuel pump is located on the left-front side of the engine, while on V8 models, it is found on the right-front side.
    Posted by GMPartsGiant Specialist
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    Q:
    How can you check the fuel pump on the 1984 Oldsmobile Omega? Posted by Customer
    A:
    For fuel-injected models, start by verifying that the fuel pump is running by listening for a whirring noise when the ignition switch is turned on. If the pump does not come on, check the fuel pump fuse and relay. If they are both functioning properly, check for an open circuit between the relay and the fuel pump. If the circuit is fine, disconnect the electrical connector at the fuel pump and connect battery voltage to the gray wire terminal of the pump to see if the pump runs.
    Posted by GMPartsGiant Specialist
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    Q:
    How do you unlock the fuel pump/sending unit assembly for the 1991 Pontiac Firebird? Posted by Customer
    A:
    Turn the inner ring counterclockwise until the locking cams are free of the tangs. If necessary, a hammer and brass punch can be used to tap the lock-ring counterclockwise, but avoid using a steel punch to prevent sparks that could cause an explosion.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done after cleaning the block mounting surface and applying grease to the pushrod for the 1983 Pontiac Phoenix? Posted by Customer
    A:
    After cleaning the block mounting surface and applying grease to the pushrod, the new gasket and pump should be installed and the hoses and lines should be reattached.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done if no spurts of fuel are observed for the 1988 Oldsmobile Cutlass? Posted by Customer
    A:
    If no spurts are present, replacement of the pump is necessary.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done if the fuel pressure exceeds specifications for the 1989 Pontiac Firebird? Posted by Customer
    A:
    If the pressure exceeds specifications, check the fuel return line and replace the pressure regulator if necessary.
    Posted by GMPartsGiant Specialist
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Genuine GM Part 25168719, the Right Choice

To ensure reliability, purchase GM part # 25168719 Fuel Pump. It is sometimes referred to as Buick Fuel Pump. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Buick Century, Skylark, Somerset models.

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