Thank You Toyota! ...Fuel Pump Replacement.

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Gotcha. It looks like my problem may have been a coil pack in the process of going bad. Normally when coil packs go bad in throws a code immeditately. I had been getting a hesitation intermittenly for a while with no code, thinking it was the fuel pump. Today it threw a cylinder 4 misfire code. I went ahead and changed it out as I was waiting on your ever so kind responses to my fuel pump question.

I just drove it and it seemed to drive very smooth. Hopefully tomorrow it will continue its kind motoring way.

Thanks for you help.
 
BullElk said:
Gotcha. It looks like my problem may have been a coil pack in the process of going bad. Normally when coil packs go bad in throws a code immeditately. I had been getting a hesitation intermittenly for a while with no code, thinking it was the fuel pump. Today it threw a cylinder 4 misfire code. I went ahead and changed it out as I was waiting on your ever so kind responses to my fuel pump question.

I just drove it and it seemed to drive very smooth. Hopefully tomorrow it will continue its kind motoring way.

Thanks for you help.
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I think you nailed it. Classic symptoms of a failing Coil Pack. Good job!
 
Real time help...

I cannot get the below plug out of the old fuel pump. Any tips???

image.webp
 
Those tabs sides are the clips that hold it on, you have to undo those, things like that I stick a small flat blade screwdriver under one side to hold it open and then undo the other with another screwdriver.
 
There is no fuel pump in the tank of a fj40,45,55 or 60....the fuel pump is mechanical and is on the motor/block.

There is an access panel on 79+ fj40, 55, 60....but its to access the fuel tank sender. My 1964 45lv even has one because the tank is under the body. 40's thru 78 had the tank under the seat, it moved to under the body in 79

Now my beater 87 gmc truck....no access, gotta drop the tank.....but i almost cut a hole in the bed. Now the darn switching valve is leaking out the electrical connector......great design....not

LandCruiserPhil said:
Does your 40 have an access panel, mine didnt.
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Landpimp said:
There is no fuel pump in the tank of a fj40,45,55 or 60....the fuel pump is mechanical and is on the motor/block.

There is an access panel on 79+ fj40, 55, 60....but its to access the fuel tank sender. My 1964 45lv even has one because the tank is under the body. 40's thru 78 had the tank under the seat, it moved to under the body in 79

Now my beater 87 gmc truck....no access, gotta drop the tank.....but i almost cut a hole in the bed. Now the darn switching valve is leaking out the electrical connector......great design....not
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I put a FI pump in my tank combined with the sending unit to feed the TPI 350.
 
if anyone does go for the 80 dollar walbro, I can say that it definitely is a tiny bit louder, and hums at a different frequency. I also had to shorten the metal pick up tube being that the walbro is a physically a taller pump. I didn't like putting it in, but there was no going back once I had it out. I would do it again considering the price of toyotas pump.
 
92LXAZ said:
Wanted to follow up with your request. Finally got a response. They were kind enough to send a pic. This is what came with the fuel pump ordered under part no. 23220-50160. Pump and pre-filter, expensive little sucker that's for sure.

View attachment 1297068
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I see the 06/07 model fuel pump comes with the prefilter.
Anyone know if the 23221-66040 (98-05 fuel pump) includes this pre filter 23217-74021?
 
Nottajeep said:
I see the 06/07 model fuel pump comes with the prefilter.
Anyone know if the 23221-66040 (98-05 fuel pump) includes this pre filter 23217-74021?
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For the record, 66040 does not include pre filter/sock. I have to order and redo my pump install:bang::poop:
 
Ayune said:
@jasonbraswell The Denso kit 950-0107 comes with the pre-filter bag and lots of misc. clamps and hardware. I got this kit for my '98 LC, may fit other earlier years as well. ~$113 off Amazon (with pic): https://www.amazon.com/Denso-950-0107-Fuel-Pump/dp/B00274QIVM?tag=ihco-20
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thanks. I should have ordered the sock filter with the pump. Now, I get to practice this job some more:)
it's only $8 now and the toyota pump was $225, which is pretty good for OEM pricing. Denso is likely identical but who really knows for sure.

Question- what's the function of the black hose hanging from the sending unit? One end is open and not connected to anything?
Capture.webp
 
Nottajeep said:
thanks. I should have ordered the sock filter with the pump. Now, I get to practice this job some more:)
it's only $8 now and the toyota pump was $225, which is pretty good for OEM pricing. Denso is likely identical but who really knows for sure.

Question- what's the function of the black hose hanging from the sending unit? One end is open and not connected to anything?
View attachment 1602771
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It is the return line from the pressure regulator on the rh fuel rail. Returns most fuel at full manifold vacuum, ie idle. The fuel is warmed up from being in the engine bay.
Eventually your tank fuel will get all warmed up in slow moving traffic or at idle. See the thread called 'engine shutting off during long trips' for more info on 06 and 07's stalling.
 
North100 said:
It is the return line from the pressure regulator on the rh fuel rail. Returns most fuel at full manifold vacuum, ie idle. The fuel is warmed up from being in the engine bay.
Eventually your tank fuel will get all warmed up in slow moving traffic or at idle. See the thread called 'engine shutting off during long trips' for more info on 06 and 07's stalling.
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So is this a correct design, Or should we address the return fuel line heating up the fuel? I had the fuel in my tank boil over once on a long trip. would insulating the return line near the engine compartment where the return fuel is heated, up help to avoid overheating to fuel again?
 
1meancruiser said:
So is this a correct design, Or should we address the return fuel line heating up the fuel? I had the fuel in my tank boil over once on a long trip. would insulating the return line near the engine compartment where the return fuel is heated, up help to avoid overheating to fuel again?
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If this were the case it'd happen all the time no matter the elevation.
It is elevation and run time related.
So the high elevation and long run times of a off road trip cause the problem.
High elevation but short trips and it doesn't happen.

Early '90's Range Rovers had a fuel tank ventilation problem. The fuel tanks couldn't vent and because they were plastic and on long trips the tank woul collapse under the vacuum of the fuel being used and eventually the engine woul stall.
Open the gas cap, suck in air, engine runs again. Eventually the tank would crack and leak at the top.
There was a recall. Tanks were replaced for free. Problem solved.
Short trips. No problem. While sitting the tank vent would let in air. It was only long trips.
This is the same thing, only at high elevation.
 
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