SoundVisionSoul
New member
Hey has any one ever had issues with their fuel pump not putting out enough pressure under load?
3.0L V6 Fuel Pump?
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gizmopt2002
New member
Most likely the fuel filter is becoming clogged.
I would cut off the lines and install some fuel injector hosing to a fuel filter. So easy to replace when the time comes.
I would cut off the lines and install some fuel injector hosing to a fuel filter. So easy to replace when the time comes.
SoundVisionSoul
New member
Yea i was thinking fuel filter too. Looks original.... and with 250 000km on it. But i still have a hunch the Pump might be weak. I put the gauges on it and at idle it reads 38 to 40psi... which is in spec... and when i dissconnect the regulator line it goes up 10psi... again in spec. But when i go for a drive it drops to about 20 psi or les and bogs out and almost stalls....
2Walker5RS
New member
LOL!
Funny this thread just popped up!
I own that 4Runner now!!! All fixed up, It was the fuel filter!:trophy:
Funny this thread just popped up!
I own that 4Runner now!!! All fixed up, It was the fuel filter!:trophy:
I just fixed my 1993 toyota 4runner that had no power at all.
It was the injectors that were the issue now its good as new.
It was the injectors that were the issue now its good as new.
sactokings
New member
Possible fuel pump issues.
Vehicle stutters each time the gauge reaches 1/2 tank. After I fill up beyond 1/2 tank the 4 runner works fine, no problem. I've already changed the fuel filter, vacuum hoses, had a tune-up, but the problem persists. Anyone else run into this?
:thanks:
David
Vehicle stutters each time the gauge reaches 1/2 tank. After I fill up beyond 1/2 tank the 4 runner works fine, no problem. I've already changed the fuel filter, vacuum hoses, had a tune-up, but the problem persists. Anyone else run into this?
:thanks:
David
gtgt_bangbang
New member
I see its fixed but have a couple minutes to kill for future generations
are these pumps diaphragm based ? You could alway get a pin hole in your diaphragm and give birth to all sorts of problems. Thats basically why I'm here.
If there is a half empty / half full problem; never been in the tank but is there a plastic dip tube could be cracked ? Sucking air.
Do you think the fuel gauge is accurate ? Is "half full" actually empty ( a realistic optimist)
are these pumps diaphragm based ? You could alway get a pin hole in your diaphragm and give birth to all sorts of problems. Thats basically why I'm here.
If there is a half empty / half full problem; never been in the tank but is there a plastic dip tube could be cracked ? Sucking air.
Do you think the fuel gauge is accurate ? Is "half full" actually empty ( a realistic optimist)
Last edited:
sactokings
New member
gtg_banbang,
I've never been in the tank either. Some sort of hole/ gash is what I'm thinking.
I hear I need to take the seats out in order to access the fuel pump in the tank.
Appreciate your inputs..
Regards,
David
I've never been in the tank either. Some sort of hole/ gash is what I'm thinking.
I hear I need to take the seats out in order to access the fuel pump in the tank.
Appreciate your inputs..
Regards,
David
gtgt_bangbang
New member
I've never R&R'd my gas pump, but I looked through that access hole under the right back seat. There's a couple wires there, perhaps to allow you to drop the tank without tearing them, but it sure looks like the tank has to come down to extract pump
I had to go through our fuel system a while back on our 4runner(1990). Had to drop the tank to replace the fuel pump. I'd recommend getting the tank seals from Toyota, as they have upgraded them to handle the ethanol. Also replaced the regulator, filter,relay, and injector with housing seals/o-rings. I posted pics a while back of the whole process, especially the tank drop.
Best of luck with it.
regards
Best of luck with it.
regards
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