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Old 05-07-2014, 09:53 PM #1
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Arrow *** V6 Head Gasket Action Request ***

I know this has been discussed a lot and I really don't want to start a thread about anything other than a simple survey of those that have had to have their head gasket replaced. If you are looking for info do a search and there is plenty of threads. I am just curious if there is any similarities and would like to put the information together once enough is complied.

Thanks!

Please post info as follows:

Year
Production Date
4x4 or 4x2
Mileage of failure
Cylinder # that leaked

*** FYI UPDATE ***
Thanks to momo.75 this thread has been combined with NuclearN8's. Great links and info can be found on pg. 5 POST #61.
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2004 V6 2wd Sport - BFG Mud T/A KM 255/75/17, Bilstein 5100ís: front FJ coils, 4" lift spindles set @ .85, rear Metal Tech LT MD coils, SS brake lines, Uniball UCAs, Spidertrax; K&N air filter w/ HCF delete, WeatherTech Liners, dual batteries w/ isolator, inverter w/ 110v outlets, on-board air, satellite radio, custom grill emblem and roof rack; Mods: auto headlights, aux remote reverse LED pods and GY6.35 50w reverse bulbs, rear camera, interior LEDs, VSC, 12v w/ added outlets and windows always on, DRL on/off w/ always on mode, fog/map light, key reminder, TPMS bypass, front wheel liner relocate; de-badged, mud flaps, running boards, resonator, Xreas, front/rear sway bar removed

Last edited by morphious; 08-21-2015 at 06:51 PM.
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Old 05-09-2014, 01:26 AM #2
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2004
06/04
4x4
120k
#6
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Old 05-09-2014, 08:07 AM #3
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I've never had the problem. 05 V6 with over 260k miles.

The BIGGEST problem with Aluminum engines is not letting it overheat. That is by far the biggest cause of head gasket failures. Probably 99% of all head gasket failures on Aluminum engines is due to engine over heating. Over heat just ONCE and you could have a head gasket failure.

Besides the life time Tranny fluid...I'm NOT a big fan of leaving coolant in the radiator for 4 years. I change mine out every other year. It's very very very cheap insurance of having a head gasket failure.
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Old 05-09-2014, 09:29 AM #4
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Quote:
Originally Posted by MikeInNH View Post
I change mine out every other year. It's very very very cheap insurance of having a head gasket failure.
Do you get your coolant from the toyota dealer or just use a general coolant from auto shop? I realize that there's a difference in color (orange vs. pink) but not sure if that really matter.
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Old 05-09-2014, 12:43 PM #5
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Quote:
Do you get your coolant from the toyota dealer or just use a general coolant from auto shop?
I buy Zerex Asian formula. It's designed for Toyota engines (and several Asian engines).

I NEVER buy something like that from the dealer. The coolant from Toyota is made for them by one of the 3-4 coolant manufacturers. Probably Zerex.
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Old 05-09-2014, 02:41 PM #6
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My neighbor just traded in his 2004 2wd Limited with low compression on #6. He had 180K.
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Old 05-16-2014, 10:36 PM #7
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With about 280 views and 1 member and a members neighbor that is a possible, not seeming like an epidemic at this point.
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2004 V6 2wd Sport - BFG Mud T/A KM 255/75/17, Bilstein 5100ís: front FJ coils, 4" lift spindles set @ .85, rear Metal Tech LT MD coils, SS brake lines, Uniball UCAs, Spidertrax; K&N air filter w/ HCF delete, WeatherTech Liners, dual batteries w/ isolator, inverter w/ 110v outlets, on-board air, satellite radio, custom grill emblem and roof rack; Mods: auto headlights, aux remote reverse LED pods and GY6.35 50w reverse bulbs, rear camera, interior LEDs, VSC, 12v w/ added outlets and windows always on, DRL on/off w/ always on mode, fog/map light, key reminder, TPMS bypass, front wheel liner relocate; de-badged, mud flaps, running boards, resonator, Xreas, front/rear sway bar removed
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Old 05-21-2014, 12:36 PM #8
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Mine is in the shop currently getting both head gaskets replaced. I wouldn't call it an epidemic either by any means, but I also would not ignore the fact that it is happening to people. Google search "P0306 Toyota 4.0" and read through a few. If are researching prior to a purchase, I would advise making sure you start the vehicle from a cold start in the morning and confirm that it runs smooth immediately. Toyota quotes this job at $2500-3200 and that is a very heavy expense for some.
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Old 05-23-2014, 12:23 AM #9
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I agree with Jake, this is an issue that should be taken into consideration to anyone considering buying a used 4Th gen 4runner. Make sure you're not buying someone else's problem. 05 V6--Head gasket went at 93k--never overheated ----Cylinder #6

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Old 05-23-2014, 11:16 AM #10
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2006 v6 2wd
152k
no head gasket issues
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Old 05-23-2014, 01:23 PM #11
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2007 4wd 105,000 no issues. Never been overheated.
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Old 05-23-2014, 07:57 PM #12
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2004
4x4
121xxx

I've never overheated it, owned it since 94k, no issues
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oh my god the erection I have from this thread is unreal.
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Old 05-24-2014, 03:34 AM #13
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2004
05/04
4x4
120k
#6

Changed coolant at 100k as vendor recommends.
Radiator leaking preceded headgasket problem. But never overheating it.
Changed radiator in January and headgaskets in March)))

And i am not alone in my city.
Also there are many similiar problem with 1gr on tlc prado 2004
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Old 05-28-2014, 09:48 PM #14
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2004
4x2
137thousand miles
#6
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Old 05-29-2014, 01:17 AM #15
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Looks like a lot of problems occur on pre-06. Was there an update/redesign for the facelifts? I realize it could be down to age and mileage. but there have to be plenty of 06+ with just as many miles as earlier rigs by now...
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