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    2003 Tahoe coolant system leak or head gasket leak?

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

    Ummm... I don't think I am worthy to be on this site.:worthy:
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    2003 Tahoe coolant system leak or head gasket leak?

    that is crazy! You relocated the battery? Can't figure out where that is.
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    2003 Tahoe coolant system leak or head gasket leak?

    Oh Man am I into this. Great work. I have had so many grounding issues with this car. It will be awhile before I get to it as I have a 2001 740i with a pretty good oil pan leak and oil sensor seal leak as well. Plus I did a complete overhaul on the cooling system on this one as well and one...
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    2003 Tahoe coolant system leak or head gasket leak?

    "Might I suggest adding a Big 3 upgrade to your "bored" list?" Chris, I have no idea what this means. :(
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    2003 Tahoe coolant system leak or head gasket leak?

    What are these for....? Valve Stem seals? I dont think I need them as the new heads have them installed?
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    2003 Tahoe coolant system leak or head gasket leak?

    Yep that's the plan. Can't tell you all how much I appreciate the insight and the experience. I have done a lot of work with these cars over the years I have owned them but this was likely the most extensive so far. The little idiosyncrasies are what experience provides so you don't botch it...
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    2003 Tahoe coolant system leak or head gasket leak?

    Well, this is interesting news. Prior to teardown, motor ran like new with lot's of power. No smoke at all. Spark Plugs are perfect, injectors were amazingly clean and the build up of carbon on the cylinders and valves was what I would consider normal for this many miles. I think I am going...
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    2003 Tahoe coolant system leak or head gasket leak?

    I don't know what cross hatches means? I will take pictures and send but let me know what that means. The cylinder walls look perfect.
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    2003 Tahoe coolant system leak or head gasket leak?

    I don't know how to thank you Chris. This is a killer write up. I sprayed "deep creep" by seafoam on it and that seems to soften everything up and it all came off easier than brake cleaner. Anyways I just cleaned the intake thoroughly and replaced the two o-rings on each injector as well...
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    2003 Tahoe coolant system leak or head gasket leak?

    Lol
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    2003 Tahoe coolant system leak or head gasket leak?

    So I have worked very hard at cleaning the mating surface. But the surface remains stained for lack of better words. Take a look at the picture please Chris. The surface feels smooth but the stains are still there. This is the hardest part I think.
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    2003 Tahoe coolant system leak or head gasket leak?

    Thank you Snowdrifter. Curious would you reuse rocker arms and bolts if they have 210k miles on them?
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    2003 Tahoe coolant system leak or head gasket leak?

    OK so there is a lot of confusing info out there. It appears torque specs depends on what version of LS engine you have. Really just need rocker arm specs and procedure along with head bolts spec and procedure. There are also 5 smaller bolts above the head as well that I found needs on pass...
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    2003 Tahoe coolant system leak or head gasket leak?

    It looks like rocker arm bolts are 22ftlb and then a 360 degree crank turn and check again?
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    2003 Tahoe coolant system leak or head gasket leak?

    It looks like i have the two shorter head bolts on the outer holes. Is it 22lbs, 90, 90 for all bolts but the shorter two last pass is 50degrees? The top small 10 mm bolts are one pass 22lbs. Just want to be sure I am reading this correctly. Thank you.
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    2003 Tahoe coolant system leak or head gasket leak?

    No Rtv on the head gaskets correct? It looks likethe bolts are 22 ft lbs, 90 second turn and then 70 final. Rocker arms are also 22 ft lbs as well? Seems a little much for those little bolts. Any wierd idiosyncrasies you all can think of before they go back on.
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    2003 Tahoe coolant system leak or head gasket leak?

    I have a couple of alignment guides stuck in my old cylinder heads. Is there another option. Thinking of cutting the heads off of a couple of the old bolts.
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    2003 Tahoe coolant system leak or head gasket leak?

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    2003 Tahoe coolant system leak or head gasket leak?

    So how clean does the mating surface of the engine block need to be when I put on the new gasket and cylinder head?
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    1999 Yukon front left clunk sound

    OK well it needs to get inline. I am currently replacing the Castech heads on my wifes 2003 tahoe. Not even half way there yet. Thank you for any and all input.
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    1999 Yukon front left clunk sound

    Thank you guys. Here is what I have done about 3500 miles ago. The entire front end linkage with the exception of the lower control arms. The noise wasnt there prior to new items . I can't get it to repeat the sound when on jacks. It isn't quite a clunk. Sometimes it sounds like torque...
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    2003 Tahoe coolant system leak or head gasket leak?

    Found it... Part number... GM 12578233 https://www.amazon.com/dp/B07T94THNB/ref=cm_sw_r_other_apa_glt_i_AT2ES4ZY26PTZANNX0V0
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    2003 Tahoe coolant system leak or head gasket leak?

    Quick question. There is a plastic relatively long vacuum hose that connects to the front top of the intake manifold and connects in the back near the back of the engine. I cannot find this in the schematics. Does anyone have a part number for this. It is molded and plastic with connectors on...
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    1999 Yukon front left clunk sound

    Hello all! Well I have this knocking or clunking sound from the left front. It will make the sound when hitting a certain type of bump at speed AND even at idle speed as I go down my drive way slowly and the vehicle torques over the curb. No sensation in the steering wheel. At first I...

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