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    2003 Tahoe coolant system leak or head gasket leak?

    It was so annoying. I know better to leave an opening like that. The one time I didn't stuff it with a towel, this happens. Thank you!
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    2003 Tahoe coolant system leak or head gasket leak?

    So the saga continues. As I was messing around with removing and changing out the oil pressure sensor in the back. My socket wrench exploded. A piece of the head came apart into 3 pieces. A very small rubber seal, the push button on top of the head, and a little 1/2 inch by 1/4 inch spring...
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    2003 Tahoe coolant system leak or head gasket leak?

    I think I need to send you a check! :D Can't tell you how much I appreciate your feedback. I also appreciate everyone else as well! Thank you all. It was too cold today. I did absolutely nothing. I was just cold to the bone today - kind of strange for me as I am usually baking all the time...
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    2003 Tahoe coolant system leak or head gasket leak?

    Here is probably a dumb question ( but I am good at it :) ). I watch these videos on YouTube installing new heads. Nobody seems to care that they are bone dry. Shouldn't you pour some oil on them before first startup?
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    2003 Tahoe coolant system leak or head gasket leak?

    I am replacing everything including this one for sure. Nearly impossible to get at the oil sensor otherwise.
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    2003 Tahoe coolant system leak or head gasket leak?

    At first no, then realized the mistake. I then purchase OEM at the dealership. But one of them was leaking again about a month ago but stopped since.
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    2003 Tahoe coolant system leak or head gasket leak?

    I just replace those t connectors and they already leak sometimes. Terrible design and yes I will be careful. I am think of just removing them altogether and just have heat in the front vents.
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    2003 Tahoe coolant system leak or head gasket leak?

    I can't tell you how thankful I am for your input.
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    2003 Tahoe coolant system leak or head gasket leak?

    OK it took me about 4 methodical, careful and slow hours of removing organizing and cleaning to get to a place where I am now ready to remove the intake manifold (brake vacuum hose is still attached and hose from throttle body - will take off tomorrow).
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    2003 Tahoe coolant system leak or head gasket leak?

  11. T

    2003 Tahoe coolant system leak or head gasket leak?

    Yes I am going to change all of these out. Have a gasket kit from Victor Heinz coming. Not going to drop the pan but everything else I have ready to go. Had a knock sensor go out already about a year ago. Rewired the bad one to the good one to trick the Chevy Computer so I can keep going. I...
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    Rod bearing wear question

    My thinking and hope as well.
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    Rod bearing wear question

    Exactly what I plan on doing. Run the oil about 20 minutes without pressure on it. Just idle. Drain and do it one more time. Drain then add my Castrol and drive it! I didn't mention ( and why this makes sense for me ), I have another 2003 Tahoe (this one is a Z71). If engine fails on this...
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    2003 Tahoe coolant system leak or head gasket leak?

    Thanks. You and I are on the same page. I just purchased two 799 heads and the gaskets and bolts to replace everything below. Everything is about $1300.00 out the door including new bolts and all gaskets. This includes shaving the heads 0.20 to get them closer to the 706 heads. Not too bad...
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    Rod bearing wear question

    that is what I am going to do.
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    2003 Tahoe coolant system leak or head gasket leak?

    PLEASE NOTE I STARTED A NEW THREAD TO ADDRESS THIS QUESTION TO EVERYONE HERE... https://www.tahoeyukonforum.com/threads/rod-bearing-wear-question.132483/ I thought starting a new thread would be good for those who are having similar issues. But here is the notes ( bad news ) from...
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    Rod bearing wear question

    This is a new off topic thread started based on cracked Castech 706 head and coolant in the oil. That great discussion about 706 heads is noted here... https://www.tahoeyukonforum.com/threads/2003-tahoe-coolant-system-leak-or-head-gasket-leak.132246/ Here is the notes from Blackstone...
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    2003 Tahoe coolant system leak or head gasket leak?

    706 VS 799
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    2003 Tahoe coolant system leak or head gasket leak?

    You lose 2 HP and 7 ft-lbs of torque going from 706 to 799. That is all!
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    2003 Tahoe coolant system leak or head gasket leak?

    Thank you and I am supposed to get my Blackstone report tomorrow which will confirm our thoughts. The little puddle of clear fluid above the bald spot is pure coolant so it is pretty certain at this stage but I can wait one more day for the oil analysis. Thanks I will keep posting here for the...
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    2003 Tahoe coolant system leak or head gasket leak?

    I will.
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    2003 Tahoe coolant system leak or head gasket leak?

  23. T

    2003 Tahoe coolant system leak or head gasket leak?

  24. T

    2003 Tahoe coolant system leak or head gasket leak?

    Found it I think. What is odd is that there is very little gunk built up on this side. Check out these pics...
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    2003 Tahoe coolant system leak or head gasket leak?

    This is great!

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