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Old 08-02-2009, 11:59 AM #1
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Removing Fuel Injectors on 4.0 v6

Does anyone have a shop manual that outlines the procedure for this and could give me the quick run down.

I'm still trying to isolate the cause of my high Long Term Fuel Trim values on the drivers side which is potentially causing a miss on cyl #6. It was suggested I move the #6 injector to the other side of the motor and see if the problem follows. The thinking is that it's a bad injector or even a bad o-ring on it.
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Old 08-02-2009, 01:14 PM #2
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Quote:
Originally Posted by snowjay View Post
Does anyone have a shop manual that outlines the procedure for this and could give me the quick run down.

I'm still trying to isolate the cause of my high Long Term Fuel Trim values on the drivers side which is potentially causing a miss on cyl #6. It was suggested I move the #6 injector to the other side of the motor and see if the problem follows. The thinking is that it's a bad injector or even a bad o-ring on it.
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Old 08-02-2009, 01:27 PM #3
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Thank you!

Unfortunately that's what I was afraid of, having to take the top of the intake manifold off (I guess they all it the intake air surge tank). Not like my Dodge where it's just 3 bolts and you pull the whole fuel rail off.

Time to trade it in!
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Last edited by snowjay; 08-02-2009 at 02:34 PM.
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Old 10-30-2016, 05:51 PM #4
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Fuel Injector

Anyone replace a fuel injector on a 4.0? Working on a 05 4runner, #4 cylinder. Thanks.
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Old 01-23-2018, 05:06 PM #5
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I'm having the same issue on my 04.
Keeps fouling the same plug.
Now time to find someone in the Long Beach area that can change a fuel injector.
I've changed the plug and boot with everything else looking absolutely normal.
UGH!
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Old 07-19-2019, 11:32 PM #6
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Quote:
Originally Posted by fishin View Post
Anyone replace a fuel injector on a 4.0? Working on a 05 4runner, #4 cylinder. Thanks.
same here LTFT b2 is 37%, now am getting a cyl 4 misfire, changed plugs, no dice. looking to change out the injector, trawled the forum, no videos on the process
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Old 07-21-2019, 04:44 PM #7
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same here LTFT b2 is 37%, now am getting a cyl 4 misfire, changed plugs, no dice. looking to change out the injector, trawled the forum, no videos on the process
Mine end being the head gasket. I never did change the injector.
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Old 07-21-2019, 06:32 PM #8
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Mine end being the head gasket. I never did change the injector.
wow, thats scary, what other symptoms did you have?, how was it diagnosed?, i thought HG issues on the v6 was identified by cylinder 6 misfire.
i swapped coils from cyl4 and cyl 2, lemme see if the misfire will follow,
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Old 07-21-2019, 07:12 PM #9
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Quote:
Originally Posted by earthrealm View Post
wow, thats scary, what other symptoms did you have?, how was it diagnosed?, i thought HG issues on the v6 was identified by cylinder 6 misfire.
i swapped coils from cyl4 and cyl 2, lemme see if the misfire will follow,
I swapped coils too. No luck. It was aft driver's side, aft cyl. I forget what it's called, but you test your anti- freeze for exhaust fumes. That's how I found out. GL.
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