1996 Chevy Lumina fuel pressure guage

DOCMCKENNA

MEMBER
1996 CHEVROLET LUMINA
6 CYL
FWD
AUTOMATIC
70,000 MILES

Hi

When I turn the heat on in my car I smell raw fuel. I have determined that I have a bad fuel pressure valve. It looks like it is not to difficult to replace. My only question is, do I have to releive fuel pressure befire removing old fil, ter. If so how is this done? Also what then needs to be done after new part is installed.

Thanks

1 Reply

IMPALASS

MECHANIC
3,112 POSTS

Hello -

I have attached the directions for removal and replacement for you. As you see it tells you to remove the gas cap. Besides that, I attached a pic of the rail. . ..you can depress the valve stem to get the last bit out. The same place you take the pressure reading.

Once installed I have turn the key on - let the fuel pump pressurize and then with a rag over it, depress the valve stem to get some of the air out.

Numbers in text refer to image references.

REMOVE OR DISCONNECT

Relieve the fuel pressure.
Clean any dirt from the fuel pressure regulator retaining ring.
Remove the vacuum hose from pressure regulator.
Remove the snap ring (7).
Using a shop towel to catch any spilled fuel, lift and twist the fuel pressure regulator in order to remove the fuel pressure regulator (6) from the fuel pressure regulator housing (1).
Remove the regulator O-ring small (2).
Remove the regulator filter screen (3).
Remove the regulator O-ring large (4).
Remove the regulator O-ring back up (5).
Cover the fuel pressure regulator housing (1) to prevent contamination from entering the fuel system.

INSTALL OR CONNECT

NOTE :

Compressed air must never be used to test or clean a fuel pressure regulator, as damage to the fuel pressure regulator may result.
If needed, the fuel pressure regulator filter screen should be cleaned with gasoline.
The fuel pressure regulator should not be immersed in solvent in order to prevent damage to the fuel pressure regulator.
Install the new O-rings on the fuel pressure regulator (6), if a new fuel pressure regulator is not being installed. Lubricate the O-rings lightly with clean engine oil.
Install the regulator back up O-ring (5).
Install the regulator O-ring large (4).
Install the regulator filter screen (3).
Install the regulator O-ring small (2).
Install the fuel pressure regulator (6) in the fuel pressure regulator housing (1).
Install the snap ring (7).
Install the vacuum hose to the fuel pressure regulator.