02-10-2015, 09:38 AM
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#61
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Senior Member
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Join Date: Sep 2012
Location: The 28th State
Age: 45
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Senior Member
Join Date: Sep 2012
Location: The 28th State
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*** V6 Head Gasket Information Thread ***
I created this thread to keep track of all V6 head gasket failure (and related) discussion threads on this forum (and others) to allow people to draw their own conclusions on the topic.
So here's what I've collected....
General 1GR-FE info
Head gasket failures are reported across multiple forums for the 1GR-FE V6 engine (4Runners, Tacomas and FJ Cruisers all use this engine)
This Forum (several DIY HG replacement threads toward the bottom which are great):
Head Gasket -Survey- Specifically V6
1GRE- FE head gasket was redesigned when?
2004 Limited Edition 4Runner 4X4 - Head Gasket
Preventing Blown Head Gaskets on v6?
New member - need help!!!! - p304 misfire
2004 Limited Edition 4Runner 4X4 - Head Gasket
Head gasket issue for 2004 4runner V6 (a thousand time)?
P0306 Misfire Rough Idle
T120:
Head Gasket Blown - 2004 V6 - Toyota 120 Platforms
Forum
TW:
1GR-FE Head Gasket Failing - Options - Tacoma World Forums
TN:
Head gasket question - Toyota Nation Forum : Toyota Car and Truck Forums
'05 4.0 Liter Head Gasket Issues - Toyota Nation Forum : Toyota Car and Truck Forums
Expedition Portal:
Repair advice? Blown head gasket on 4th Gen 4Runner? - Expedition Portal
Pirate 4x4:
Blew a head gasket on my 4.0 (long rant) - Pirate4x4.Com : 4x4 and Off-Road Forum
Toyota VIN decoding
Total 4Runner Sales Info:
Toyota 4Runner Sales Figures - GOOD CAR BAD CAR
Toyota 4Runner - Wikipedia, the free encyclopedia
Head Gasket production information from this site: 2005 Toyota 4Runner 11-04 Cylinder Head Parts
(It appears the phase in of the new head gaskets for production purposes started in August 2005 and ended in November 2005, anything after November 2005 seems to be assured of having the new head gasket installed at the factory)
V6 exploded View link from same site:
ILLUST NO. 1 OF 2 ----- (0211- )1GRFE
If you've experienced a failed head gasket, please reply with your
Model year
Mileage at failure
Cylinder,
Production Date (on driver door jamb sticker),
11th digit of VIN (This denotes the plant of manufacture from link above) (0=Tahara, 8 or 9 = Hino or K = Japan)
EIN (Engine Identification Number) Is found on rear passenger side stamped into engine (next to VIN plate on engine).
I will update the attached file periodically as members share the above information concerning their head gasket failure. Hopefully, we can then use this information to see if there are any correlations between EIN serial number and/or vehicle production facility with the reported failures.
Also attached is a troubleshooting and diagnosis procedure I found that may be useful for cylinder misfire codes on the 1GR-FE engine.
Last edited by NuclearN8; 05-04-2015 at 03:56 PM.
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02-10-2015, 11:58 AM
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#62
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Member
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Join Date: Mar 2013
Location: Huntington Beach, CA
Posts: 853
Real Name: John
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Member
Join Date: Mar 2013
Location: Huntington Beach, CA
Posts: 853
Real Name: John
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Sounds good, my most up to date tracker is attached.
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2004 V6 2wd Sport - BFG Mud T/A KM 255/75/17, Bilstein 5100’s: 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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02-13-2015, 05:15 PM
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#64
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Member
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Join Date: Jul 2014
Location: Colorado
Posts: 33
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Member
Join Date: Jul 2014
Location: Colorado
Posts: 33
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What is the end game here? And are you requesting replies by PM or so the general public can see it all. Just was wondering.
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02-13-2015, 09:20 PM
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#65
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Senior Member
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Join Date: Sep 2012
Location: The 28th State
Age: 45
Posts: 1,347
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Senior Member
Join Date: Sep 2012
Location: The 28th State
Age: 45
Posts: 1,347
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My end game is to collect the data, enough at least to analyze it in an objective manner and present it here in a consolidated manner. (since no such thread exists yet that I have found on any forum)
A simple reply in the thread works for me... the data will be in the attached pdf file in the first post anyway... but if you feel more comfortable with a PM, works too.
From the data I've collected to date, I'm not convinced there is an issue at all.... I mean if 03-05 are allegedly the trouble years for the 1GR-FE in 4Runners,how come no 2003's have been reported as failed? It seems awfully weird, right?... The HG changes doesn't mean anything in my eyes... logistic supply chains and suppliers change all the time, it's just part of doing business in large scale and quantities.
I believe the 1GR-FE is a very reliable engine based on the numbers... I'm not sure how to draw any other conclusion based on the total sales numbers and number of failures reported... I mean .. in 2004, conservatively assuming 1/2 the 4runners sold were V6's this means with the failures reported on this site that's less than .01%, all of which were out of warranty at the time of failure. Even if there are 10 times more that have failed that aren't reported... that's still not .1% of total sales (assuming 50% of sales were V6's, probably more like 60-70%).
My end goal is the follow the numbers, numbers don't lie.
Last edited by NuclearN8; 02-13-2015 at 09:22 PM.
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02-16-2015, 05:03 PM
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#66
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Member
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Join Date: Mar 2013
Location: Huntington Beach, CA
Posts: 853
Real Name: John
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Member
Join Date: Mar 2013
Location: Huntington Beach, CA
Posts: 853
Real Name: John
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Combined tracker in alphabetical order update.
__________________
2004 V6 2wd Sport - BFG Mud T/A KM 255/75/17, Bilstein 5100’s: 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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02-16-2015, 05:06 PM
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#67
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Join Date: Dec 2014
Location: Springfield, MO
Posts: 898
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Member
Join Date: Dec 2014
Location: Springfield, MO
Posts: 898
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Wow. That list is scary long. I priced a head gasket job on mine today because I have a 2004 and I'm not lucky enough to dodge that bullet for very long. I wanted to plan ahead. I found a trusted independent job to do it for $2300.
I had no idea the list was that long.
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2004 SR5 4x4 V6 - With New Head Gaskets
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02-18-2015, 03:47 PM
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#68
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Junior Member
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Join Date: Jun 2011
Location: Central MA
Age: 53
Posts: 23
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Junior Member
Join Date: Jun 2011
Location: Central MA
Age: 53
Posts: 23
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Add this info
Production date 10/04
Cylinder 6
0-Tahara
Also notice the abundance of 4 and 6 as the problem. Photos posted of others gasket failure and my gasket failure are virtually identical. The gasket fails in the area between the 4 and 6 cylinder.
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2005 T4R SR5 4X4 V6 Natural White 230k miles 
2008 Scion xB Super White 160k miles
Last edited by lifesaver71; 02-18-2015 at 03:50 PM.
Reason: new info
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02-18-2015, 04:35 PM
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#69
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Member
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Join Date: Mar 2013
Location: Huntington Beach, CA
Posts: 853
Real Name: John
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Member
Join Date: Mar 2013
Location: Huntington Beach, CA
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Real Name: John
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@ lifesaver71
you are on the list, is the information I am adding for "0-Tahara"? If so, do you have a current mileage and 2 or 4wd? Thanks.
__________________
2004 V6 2wd Sport - BFG Mud T/A KM 255/75/17, Bilstein 5100’s: 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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02-18-2015, 05:48 PM
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#70
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Senior Member
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Join Date: Sep 2012
Location: The 28th State
Age: 45
Posts: 1,347
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Senior Member
Join Date: Sep 2012
Location: The 28th State
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Quote:
Originally Posted by morphious
@ lifesaver71
you are on the list, is the information I am adding for "0-Tahara"? If so, do you have a current mileage and 2 or 4wd? Thanks. |
he was just supplying the additional information for his failure I requested... the 0-Tahara was the production plant for his vehicle....
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02-20-2015, 10:08 AM
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#71
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Member
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Join Date: Oct 2010
Location: Ohio
Posts: 64
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Member
Join Date: Oct 2010
Location: Ohio
Posts: 64
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head gasket
2006 Sport 4Runner was a 4WD. Sold
Unsure which cylinder was affected, but both head gaskets were replaced under warranty.
__________________
2003 Limited 4WD V6, Black, 41K miles
1999 Limited 4WD V6, Silver, 122K miles - SOLD (tired of the suspension issue)
2006 Sport 4WD V6, Silver - SOLD 
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02-20-2015, 10:59 AM
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#72
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Senior Member
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Join Date: Mar 2010
Location: San Antonio, TX
Age: 39
Posts: 3,908
Real Name: Matt
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Senior Member
Join Date: Mar 2010
Location: San Antonio, TX
Age: 39
Posts: 3,908
Real Name: Matt
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2003 Limited 2WD
210,000 mi
Cylinder 6
04/2003
Tahara
Don't know EIN
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02-20-2015, 11:45 AM
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#73
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Senior Member
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Join Date: Sep 2012
Location: The 28th State
Age: 45
Posts: 1,347
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Senior Member
Join Date: Sep 2012
Location: The 28th State
Age: 45
Posts: 1,347
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thanks guys. updated the HGData pdf file in the first post with the info you supplied
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02-20-2015, 01:18 PM
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#74
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Member
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Join Date: Mar 2013
Location: Huntington Beach, CA
Posts: 853
Real Name: John
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Member
Join Date: Mar 2013
Location: Huntington Beach, CA
Posts: 853
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Update.
__________________
2004 V6 2wd Sport - BFG Mud T/A KM 255/75/17, Bilstein 5100’s: 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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02-22-2015, 12:59 PM
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#75
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Senior Member
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Join Date: Oct 2007
Location: SoCal
Posts: 1,823
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Senior Member
Join Date: Oct 2007
Location: SoCal
Posts: 1,823
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Tagging for future reference. Thanks
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Air 4rceRunner One, 04 Sr5
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