Can't find my fuel filter - Toyota Nation Forum : Toyota Car and Truck Forums

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post #1 of 25 Old 06-06-2017, 02:22 PM Thread Starter
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Can't find my fuel filter

I have a 1995 T-100, SR5, 3.4, 4x4, V6
Having a hard time locating the fuel filter.
Can anybody help.
email- mcfallows@yahoo.com
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post #2 of 25 Old 06-06-2017, 03:41 PM
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It should be located on frame rail under the driver's side between the fuel tank and the engine...unless the previous owner either moved it or didn't replace it/straight lined the run. Snap a few piccies and post them.

1998 T-100 SR5 2WD auto, Roadmaster Active suspension, oil catch jar, AC mod, aero cap, lower aero package, 67% grill block
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post #3 of 25 Old 06-06-2017, 05:41 PM Thread Starter
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I am the original owner. I was changing my fuel pump (By going through the truck bed). I decided to go ahead and change the fuel filter. Surprise; no filter that I can see. Truck has 120,000. Followed the fuel lines from the tank to the firewall. Nothing in plain site. The lines hug the drivers side up to the firewall. Some say it is between the starter and engine. Others say it is along the frame rail on passenger side. It would be easy to change it if it were under the drivers seat. Maybe Toyota did not install one at the factory? If that is so, I will just leave it the way it is. Their is a filter before the fuel pump in the tank. Maybe that is good enough?
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post #4 of 25 Old 06-06-2017, 06:04 PM
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Quote:
Originally Posted by BamZipPow View Post
It should be located on frame rail under the driver's side between the fuel tank and the engine...unless the previous owner either moved it or didn't replace it/straight lined the run. Snap a few piccies and post them.
Looks like it's time to change mine
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post #5 of 25 Old 06-06-2017, 09:45 PM
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Quote:
Originally Posted by mcfallows View Post
I am the original owner. I was changing my fuel pump (By going through the truck bed). I decided to go ahead and change the fuel filter. Surprise; no filter that I can see. Truck has 120,000. Followed the fuel lines from the tank to the firewall. Nothing in plain site. The lines hug the drivers side up to the firewall. Some say it is between the starter and engine. Others say it is along the frame rail on passenger side. It would be easy to change it if it were under the drivers seat. Maybe Toyota did not install one at the factory? If that is so, I will just leave it the way it is. Their is a filter before the fuel pump in the tank. Maybe that is good enough?
Unless they made a special adapter to splice the fuel lines together or installed a completely different long fuel line from the tank to the fuel rail, it would be almost impossible fer the factory to make an error like that. You definitely need a filter in the line. The fuel sock on the fuel pump is only a coarse filter. The fuel filter is more or a super fine one that captures the rest of the junk. You don't want that crud travelling down into the injectors.

The fuel filter should be on the same side as the fuel tank. Fer the T-100 trucks that used the 3vze (3.0) engine, the fuel tank was on the right side and so was the fuel filter.

As far as the fuel filter being mounted near the starter, it would end up pretty close to the exhaust crossover and down pipe.

Could you post up some piccies of yer fuel lines along the driver's side frame rail? I'm really curious now...

1998 T-100 SR5 2WD auto, Roadmaster Active suspension, oil catch jar, AC mod, aero cap, lower aero package, 67% grill block

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post #6 of 25 Old 06-06-2017, 09:57 PM
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Just out of curiousity, what is yer build month and year? It should be just below the driver's side door latch.

Seeing that the Xtra cab was introduced in mid production year 1995 (Jan?), you might have one of the first builds where they might have had a few issues with them. Did you ever git yer brake drum adjusters sorted out?

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post #7 of 25 Old 06-06-2017, 10:07 PM
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Quote:
Originally Posted by sdspeed View Post
Looks like it's time to change mine


You can see that it should be located on the frame rail just before the torsion bar adjuster. Does yer frame rail even have the threaded holes fer the fuel filter bracket?

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post #8 of 25 Old 06-06-2017, 10:27 PM
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Now that is a good thing to look for. My little GMC looks a lot like that pick. I had a shop cut the plastic hanger off rather than put the effort into removing it and pressing it in with a little lube. It is a good thing I check things before I drive off, I was hot. They wanted it back to fix it when the part came in, I told them no way, just send the part to the house.

I am sure you will find it op, it is probably covered in dirt and a squirrels nest if you have never changed it
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post #9 of 25 Old 06-07-2017, 12:30 AM
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Quote:
Originally Posted by BamZipPow View Post
Just out of curiousity, what is yer build month and year? It should be just below the driver's side door latch.

Seeing that the Xtra cab was introduced in mid production year 1995 (Jan?), you might have one of the first builds where they might have had a few issues with them. Did you ever git yer brake drum adjusters sorted out?
Just FWIW, My 1995 Xcab was built in 8/1994, took delivery June 1995. New from my Toyota dealer.
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post #10 of 25 Old 06-07-2017, 11:21 AM Thread Starter
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Date of manufacture May 1995. #675 in Japan
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post #11 of 25 Old 06-07-2017, 11:23 AM Thread Starter
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More Photos. Living in Michigan did not help the frame rot issue. Maybe if I had slathered undercoating underneath it would not be as bad. The pressure line goes directly to the throttle body. The return goes to goes to what looks like a vacuum canister pictured. I can buy the one for my truck and pick a convenient location to mount it.
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Last edited by mcfallows; 06-07-2017 at 11:36 AM.
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post #12 of 25 Old 06-08-2017, 12:06 AM
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Quote:
Originally Posted by mcfallows View Post
More Photos. Living in Michigan did not help the frame rot issue. Maybe if I had slathered undercoating underneath it would not be as bad. The pressure line goes directly to the throttle body. The return goes to goes to what looks like a vacuum canister pictured. I can buy the one for my truck and pick a convenient location to mount it.
The pressurized fuel line can't go to the throttle body. It must go to the passenger (aka right side) fuel rail near the firewall which then distributes the fuel to the fuel injectors. It is a larger diameter line. The two lines yer showing in yer piccies are the smaller diameter lines which are the fuel return and the fuel tank evaporator lines. The fuel return line comes off of the fuel pressure regulator on the driver's side (aka left side) of the fuel rail and back to the tank. The fuel tank evaporator line goes from the top of the tank to the evaporator control system which includes the charcoal canister.

If you could snap a piccie of the left side frame rail with the fuel tank on the left side of the shot and the torsion bar adjuster on the right, we can point out where yer fuel filter is located.

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post #13 of 25 Old 06-14-2017, 10:53 AM Thread Starter
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Is this my fuel filter?

After almost giving up, I found this attached inline with my main fuel line. Followed the line all the way from the tank to the fuel rail. This is located at the bottom of the fire wall. Maybe a small inline filter? could not find anything on the passenger side. What do you think? Changed out my fuel pump (no noise from the tank). Found out the new pump was working when I broke the main fuel line while installing the new pump. Original problem was hesitation upon acceleration for about 5 miles before it would not start (crank with no start). I want to cut out whatever this is and replace with rubber EFI hose. Is their a simple way to check for pressure at the fuel rail? The EFI Relay clicks when the key is turned. The fuse is good. The pump is good. This is one inch in diameter and two inches in length.
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post #14 of 25 Old 06-14-2017, 01:12 PM
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Nope, that's not yer fuel filter.

Which fuel line did you have to replace? Do you have the part number? Which two connectors did you disconnect it at?

However, if you follow that line all the way back to the fuel tank...you should find the fuel filter bolted to the frame rail aling the way. Make sure you snap a wide shot of the frame rail that includes the fuel tank on the left and the torsion bar adjuster on the right side of the shot.

I would not recommend that you cut the rubber line there to install a fuel filter. Keep in mind that the pressurized side of the fuel system is considered a high pressure setup. I'm not sure any clamp you install with a low pressure fuel filter is gonna hold and you stand a good hance of having the low pressure fuel filter blowing out. I would recommend that you git the proper fuel lines from the fuel tank to that connector.

Here are the part numbers fer both fuel lines:

From the rubber flex hose (yer trying to cut) to the fuel filter outlet...
TUBE, FUEL MAIN
77251-34070

From the fuel tank flex hose to the fuel filter inlet...
TUBE, FUEL MAIN NO. 2
77252-34040

From the fuel pump bracket outlet to the main fuel line (flex hose)
TUBE SUB-ASSY, FUEL PUMP
23091-65020

Fuel filter and bracket assembly (needs two bolts to secure the bracket to the frame rail)
23300-62020

If you have been running without the fuel filter, it's possible that yer fuel rail and injectors could be partially filled with debris. Have you tried seeing if the fuel return is working from the FPR? You should be able to remove the rubber return hose and put it in a container to see how much fuel is coming out when the fuel pump is running.

Here are the fuel lines with the fuel filter in between...
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post #15 of 25 Old 06-14-2017, 02:24 PM Thread Starter
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Fuel line

From the tank, I had a metal line which is connected to a hose after about 36 inches. The hose runs 4 feet back to metal then that strange inline device. The line continues up to the fuel rail with no fuel filter in site. I replaced the first 3 ft of metal line with EFI hose. So now, there is 8 ft of hose from the tank to the line running up the fire wall. I truly believe Toyota screwed up. Why would they use so much rubber line? Why would they not use all metal line which you have shown to me? I am the original owner. I have changed the timing belt which blew at 85,000; the only major maintenance performed on my truck. I believe that contraption pictured is the make shift fuel filter. The manufacturer screwed something up and did not have time to correct their mistake. Again, why would they not use all metal lines? Even Japanese automakers screw up sometime. I just happen to be the victim. The fuel filter would have been in the place exactly where the hose was originally, according to the parts diagram that you show. I am going to cut away all the metal line which is badly corroded and replace with rubber. If their is a restriction at that contraption, then I will know they used it as a fuel filter. I have seen devices like that used as inline filters, but on manufacturing machines. Go figure; they had access to all kinds of building repair parts. Maybe this was a steam filtration device from a press. Who knows what they had on their minds when putting my truck together. Their is one thing I am certain. I can't see anything that resembles a typical fuel filter on my truck.
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Last edited by mcfallows; 06-14-2017 at 02:39 PM.
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