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95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

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Old 01-25-2013, 06:29 PM   #1
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99 Tacoma 2.7 starts missing as fuel level declines

My tacoma has a misfire/fuel starvation issue when the needle starts to get off of full. it died completely on me when it got to around half.
Previous owner said he had the fuel pump changed (bosch), but didn't give a reason why. Got the truck for $3800 with 180k on the odometer. 2wd.
I don't want to dump a ton of money into it, but here's what I've done so far.
New plugs,wires,pcv,air filter(tune up stuff) changed all fluids, cleaned maf, cleaned IACV, cleaned throttle plate, seafoam, New fuel pressure regulator (idle would speed up when I pinched the return line from the FPV).
Any suggestions?
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Old 01-25-2013, 06:41 PM   #2
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Has the fuel filter even been changed?
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Old 01-25-2013, 07:27 PM   #3
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yep, forgot that. did it with the tune up
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Old 01-25-2013, 07:30 PM   #4
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I'm beginning to suspect that something isn't kosher in the fuel tank. I don't know exactly how everything is put together, but it makes sense that it may be a pickup tube issue, or something not seated, bad o-ring type issue.
The problem completely goes away when I fill up.
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Old 01-25-2013, 07:35 PM   #5
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No CEL?
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MODS: 3" HD Trail gear SAS kit (HD leaf removed :p), TG Triple Hole Perches, Rear 63" Chevy HD leaf swap, SKYSOFFROAD Rear Drop Shackle Kit, HD Bumper, SCB Cold Air Intake, AFM leaned out 2 clicks, 5 Speed Swapped, Aisin Locking Hubs for the SA, Power Antenna lol,
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Old 01-25-2013, 07:47 PM   #6
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No CEL
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Old 01-26-2013, 05:06 AM   #7
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Quote:
Originally Posted by mooserov View Post
I'm beginning to suspect that something isn't kosher in the fuel tank. I don't know exactly how everything is put together, but it makes sense that it may be a pickup tube issue, or something not seated, bad o-ring type issue.
The problem completely goes away when I fill up.
unless there is just something else not noticed yet, i agree. Probably a crack/hole in the pickup tube and once the fuel gets below the hole it leaks amd you loose pressure. If a fuel pump was just done maybe someome was rough on it when pulling it out/putting it in.
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Old 01-26-2013, 05:22 PM   #8
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how hard is it to drop the tank on these trucks?
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Old 01-26-2013, 05:22 PM
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