fuel filter

[turbo buicks]

i got a new fuel filter i wanna put in. i have never done this before and dont want to hurt anything or myself. i have a haynes manual that depicts the process step by step for a 1987 TPI corvette. since both cars are fuel injected is the process the same. it says:

1. relieve fuel pressure by means of unplugging fuse and cranking till engine dies then crank some more to get all pressure out of the system
2. disconnect fuel lines
3. loosen clamp enough to get out old filter
4. place in new fuel filter and secure fuel lines and filter harness 5. plug in fuse and crank engine.

is this the correct process i need to follow?

also, are there any specific torque settings i have to torque the lines to or should i just makes sure they are tight?

thanks

 

[Hawaiian Turbo]

I relieve the pressure VIA the fuelrail shraeder valve. Loosen both sides of the fuel filter,unbolt the bracket, remove filter then reverse the process. HTH

 

[turbo buicks]

Hawaiian Turbo,
by using the schraeder valve method how long does it take to relieve the entire fuel system of pressure and do you have to have a special tool to tap into it or can you just push it with something and put a bucket under it to catch the fuel?

also, i just noticed that your post count right now is equal to your car's displacement-231

thanks

 

[KillrV6]

disconect the conector THAN run the car til it stops, THAN depress the schrider valve to let out any fuel. less fuel in the lines, less fuel will fall in your eyes

 

[turbo buicks]

killrv6,
what connector are you referring to? the fuse? if so which fuse controls the pump(i dont have a owners manual )

thanks

 

[Hawaiian Turbo]

It takes less than a minute, I just stuff a rag under the rail, and I use a small screwdriver... well, I did, I have a pressure gauge on there now. Shucks, I should not post anymore and leave it at 231

Killer, it'll be the same thing, the pump will not run, but the motor will not pull a vacuum on the fuel line, you'll still have the same amount of fuel, at the filter.

 

[NastyGn]

Just a note: Like oil filters you should not buy a cheap fuel filter.
I have seen and had the cheap (AutoZone and such) no name filters crush from the fuel pressure and cause other problems.

The problem was run across running in the low 40+ fuel pressure range at idle with the line off.

No flame just a heads up.

Take Care

 

[turbo buicks]

i got a purolator filter. the computer said it was the delco equivalent of the stock filter and i compared it to my current one and they are the same size

 

[49-blues]

i do it the same way as Kilrv6-disconnect the pump connection at the rear of the car ,run the motor until it stalls then your ready to disconnect and replace the fuel filter-matt

 

[John Larkin]

If you let the car sit overnight, in the morning it's a 99.9% chance there will be no fuel pressure left in the system. As others suggested, you can depress the schraeder valve to get the last little bit out but you should be good to go anyhow. Make sure you lube the old filter fittings the night before too so you don't kink a line. As for tightening the filter fittings upon reinstall, they are flare fittings so just bottom them out real snug, as in you don't want them coming loose, not as in 100 ft-lbs of torque.

 

[UNGN]

Unplugging the fuel pump connector at the tank or unplugging the relay on a hot wire equipped car and trying to start it is a little safer than going right at the schraeder valve. Its amazing how far pressurized gas will spray.

The biggest tip I can give is jack up the car so you can actually see the filter while you are working on it. Because the filter is right at the frame rail, it seems like it would be easy to just change it without jacking up the car. Don't fall into this trap. I've changed a few by "feel" and a few by "looking" and the looking times were always WAYYY easier and took a lot less time.