How do you replace the fuel regulator on a 87 Chevy Celebrity?

Answer 1

To replace the fuel pressure regulator on a 1987 to 1990 Chevy Celebrity with 2.8L/3.1L engine:

1. Remove the air duct from the throttle body.

2. Remove the two bolts that hold the throttle body to the plenum and move it slightly aside. You do not need to remove the throttle body from the engine.

3.Remove the nuts that hold the EGR valve to the plenum along with the vacuum line. Move the EGR valve aside, it does not need to be removed from the engine.

4. Remove the seven bolts that hold the plenum to the intake manifold.

5. Lift the plenum off of the intake manifold. Be careful to move the plastic vacuum lines out of the way without breaking them.

6. Unplug the vacuum line from the pressure regulator.

7. Remove the two fuel lines from the pressure regulator and move them aside.

8. Remove the two screws that hold the pressure regulator bracket from each fuel rail. Remove the two screws that hold the rails in place from each side..

9. The fuel rails can now be moved away from the regulator . The "O" rings may be stuck and require some force to pull them out of the fuel rails.

10. Remove the two screws that hold the bracket to the fuel pressure regulator.

11. The fuel pressure regulator should now be loose. There are four fuel connections, two on each side. One on each side is larger, the "O" rings often stick in their bores in the fuel rail, remove them from the fuel rail if they are stuck there. The other two connecting fittings have two "O" rings each. Sometimes they stick in the fuel rail, sometimes in the regulator. If they stick in the regulator remove them for use with the new regulator.

The new fuel pressure regulator should come with replacement "O" rings. A dab of oil on each will make re-assembly easier.

Re-assembly:

Reattach the bracket to the fuel pressure regulator. With the new "O" rings in place on the regulator slide the fittings into the fuel rails bringing them back in place. Put the screws that hold the bracket back in place and put the four screws that hold the fuel rails back in place.

Re-attach the fuel lines and the vacuum line to the fuel pressure regulator.

Using fresh gaskets put the plenum back in place, route the vacuum lines back in place. Re-attach the EGR valve and the throttle body along with the air duct from the air filter to the throttle body.