Question 1

How to service and repair the fuel pressure regulator on Buick Century?

Accepted Answer

Before servicing the Fuel Pressure Regulator a fuel system pressure relief method should be performed first. The Fuel Pressure Regulator requires service by disconnecting the vacuum line before removing its retaining screw. A shop towel should be used to contain fuel droplets when you twist the Fuel Pressure Regulator away from the Fuel Rail to detach it. Please remove the retainer as well as the spacer bracket from the rail before extracting the Fuel Pressure Regulator from the engine fuel return pipe. Thoroughly dispose of the Fuel Pressure Regulator inlet o-ring together with the fuel return pipe o-ring. Check the filter screen for contamination because contaminated parts require replacement of the Fuel Pressure Regulator. The Fuel Pressure Regulator filter screen requires cleaning with gasoline when necessary however complete immersions in solvent baths or usage of compressed air for testing or cleaning will damage the regulator. Apply clean engine oil to the new pressure regulator inlet o-ring before installing it onto the regulator inlet and following this up by lubricating and installing the new fuel return pipe o-ring. Secure the regulator attaching screw before connecting the fuel return line because unscrewed movement could vandalize the retainer and spacer bracket leading to fuel leakage at the regulator inlet. Insert the new retainer and spacer bracket into the Fuel Rail slot before connecting the pressure regulator unit to the rail and torquing engine fuel return pipe to 17 n.m (13 lb ft). Use the Fuel Pressure Regulator vacuum line before threading and securing the regulator attaching screw at 8.5 n.m of torque (75 lb in). Use a hand to check that the retainer together with spacer bracket securely rests within the Fuel Rail slots before pulling on the regulator for proper installation verification. Finish the procedure by first connecting the negative Battery Cable then verify the fuel system for leaks by activating the ignition switch for two seconds before switching it off for ten seconds and finally activating it again for leak inspection.

Question 2

How to service and repair the fuel pressure regulator on Buick LeSabre?

Accepted Answer

The first step to service or repair the fuel pressure regulator is to remove fuel pressure and then wipe off the retaining ring from dirt contamination. Detach first the pressure regulator vacuum hose followed by removing its snap ring. The fuel pressure regulator should be detached from its housing by lifting it while twisting it using a shop towel to catch any leaking fuel. The service sequence requires removal of the regulator O-ring small, regulator filter screen and both regulator O-ring large and regulator O-ring back up. Apply a cover to the fuel pressure regulator housing to stop outside materials from contaminating it. The technician must install fresh O-rings to the fuel pressure regulator if they do not use a new regulator. After this, a small amount of clean engine oil should be used to lubricate these O-rings. Fit the fuel pressure regulator with these items in this order: regulator back up O-ring, regulator O-ring large, regulator filter screen, and regulator O-ring small. The fuel pressure regulator requires housing inside it while using the snap ring to secure it in place. Use a tachometer to inspect for fuel leaks after connecting the vacuum hose to the fuel pressure regulator while starting the ignition for 10 seconds then turning it off to inspect the fittings for gas leakage before repeating. The last installation task involves fitting the fuel injector sight shield.

Question 3

How to service the fuel pressure regulator on Buick Regal?

Accepted Answer

The first step for Fuel Pressure Regulator service includes pressure relief and fuel system component cleanliness during handling. Wash all debris from the retaining ring of the Fuel Pressure Regulator before you take off its vacuum line. The next step requires removal of the snap ring and the use of a shop towel to contain any fuel drippings during the process of detaching the Fuel Pressure Regulator from its housing by lifting and twisting it. Insert a cover across the Fuel Pressure Regulator housing after removing the regulator o-ring small, regulator o-ring large, and regulator o-ring back up to maintain contaminant prevention. The first step for installation requires new o-rings on the Fuel Pressure Regulator before a thin coating of clean engine oil is applied to them. Place the Fuel Pressure Regulator inside the Fuel Pressure Regulator housing while securing it with the snap ring after installing the regulator back up o-ring followed by the regulator o-ring large before finalizing with the regulator o-ring small. Return the vacuum line to the Fuel Pressure Regulator then fasten the fuel fill cap while connecting the negative Battery Cable. A leak inspection requires turning on the ignition for two seconds before turning it off for ten seconds followed by another ignition on cycle to detect fuel leaks. The last step requires installation of the fuel injector sight shield.

OEM Buick Fuel Pressure Regulator

17 Fuel Pressure Regulators found

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

Buick Fuel Pressure Regulator

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