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Old 10-07-2021, 08:02 PM #1036
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Quote:
Originally Posted by The Simple Engnr View Post
Not sure if this thread is frequented much anymore, but I figured contributing with my experience may help someone out there. I just replaced both of my head gaskets over the last two weeks and it's fresh on my mind. I'm no expert, but I would be more than happy to answer any questions anyone may have.

2003 Limited 4X2
Blew at 263k miles
Cylinder 6
(Also leaking oil at cylinder 1 that I didn't know about until I opened 'er up)

Long story short, if you have basic mechanical aptitude, a decent collection of tools or friends tools, and a place to do the work, I would encourage you to tackle this job yourself. Yes it seems daunting, but there is plenty of information out there to get this job done well and save yourself $2-$3k+. I was hesitant myself until I found a step-by-step video on performing the whole job on the exact same engine. Combine that with a Toyota service manual and performing your due diligence to prepare for the job, and it's really not too bad - just time consuming. Nothing wrong with taking your time, you don't want to open up the engine more than once.

https://www.youtube.com/watch?v=pIbeoMpGxEc

Money is tight right now for my wife and I, so it was definitely worth it for us, but paying for the fix may be best for others. It can be done for ~$500 for parts and supplies needed.

I'm optimistic that there are many more years of life left in her.


What was the oil leak fix?
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Old 10-11-2021, 10:00 AM #1037
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Quote:
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What was the oil leak fix?
Replacing the left bank HG, so technically both gaskets were blown.

I was aware there was a slow oil leak coming from that side of the engine for a while. It was slow enough I never really took the time to diagnose it. I was surprised when I took the left head off to find the oil leaking from the outside of cylinder one. Inspection of the heads determined the flatness was in spec so after cleaning up all the sealing surfaces really good I buttoned everything back up with all new gaskets from an engine gasket kit. She's been running great since.

Killed two birds with one stone with the fix. I'm around 2k miles with the new HG and no leaks so far
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Old 10-18-2021, 07:02 PM #1038
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I think my head gasket may be going as well. I get the water gushing sound sometimes on startup from behind drivers dash. Also today I noticed I was low on coolant. No other symptoms though.
Ive tried burping few times already but no luck. Wondering if it could be something else. Ive replaced the Rad/cap, water pump and thermostat.
Im only at 140k miles so it seems kind of early compared to most others. That's why I am hoping it is something else, otherwise I will definitely fix it and get another easy 100k out of it.
So I burped my system for 1 hour the other day. Now I get the sound intermittently. And its not only when cold. Today I checked my coolant after more that 24 hours of sitting and it was perfect. Rad was full to the brim and expansion tank was fine as well. I got a slight water sound from the dash when I started it. Im not sure what is causing this. I do see little black specs in my coolant though. Could that be headgasket material?
I am planning on using some Blue Devil if I can confirm its the head gasket. (lots of good experiences on this forum) but I rarely have any symptoms other than the water sound behind dash.

Anyone know what it could be?
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Old 10-26-2021, 11:27 AM #1039
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After 40k miles of thinking it was one thing or another, my symptoms got worse (misfire startups again, horrible fuel economy/reduced power, waterfall noise, coolant being pushed out of the reservoir). I finally took it in to a shop and had the headgasket replaced. They confirmed that it was leaking combustion out and coolant in on cylinders 4 and 6.

'04 V6 - 201k miles (likely been an issue since 159k miles when I bought it)

They also replaced timing components and a quite worn oil pump while they were in there. I updated the headgasket to the '05+ version to hopefully avoid future issues.
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Old 11-11-2021, 11:51 AM #1040
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2005
4x4
135,000
#4, 6 and now 2


Has anyone yet done a write up of doing the head gasket replacement job, with pictures and part numbers?

The FSM is always helpful but I've had greater success with some sort of guide with pics that cover things not laid out clearly in the FSM.
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Old 11-11-2021, 12:16 PM #1041
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Quote:
Originally Posted by NateDawg1123 View Post
2005
4x4
135,000
#4, 6 and now 2


Has anyone yet done a write up of doing the head gasket replacement job, with pictures and part numbers?

The FSM is always helpful but I've had greater success with some sort of guide with pics that cover things not laid out clearly in the FSM.
There's a video YouTube that's literally a step by step on how to do it. But you will still need the FSM something for torque specs or anything else the might of skipped over in the video.

2006 Toyota Tundra 1GR-FE 4.0 COMPLETE HEAD GASKET REPLACEMENT STEP BY STEP 209-305-1672 - YouTube
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