What did you do to your NNBS GMT900 Tahoe/Yukon Today?

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swathdiver

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Well......they replaced a spark plug, said that all of the cylinders are losing compression. One is about 50% of what it should be.

So.....besides saving money, what are my options.

I can either

1: drop another engine in it and just keep it as a daily
2: buy a beater/daily driver and slowly work on the Tahoe
3: trade in and buy a new vehicle

I'm wanna keep this and run it into the ground, so it can become my learning vehicle and I can start doing what I want when I get something else.

Trade in value at excellent condition is $4500 on Edmunds for my area. Private is $4800-5000

Its not near excellent condition at all.

I'm just kinda torn, the new suburban was nice and not having to worry about anything going wrong would be a great peace of mind, but at the cost of a hefty payment which would put me at almost paycheck to paycheck, and I don't want that at all.

Sorry Phil; get another opinion or do the compression test yourself. Something doesn't seem right.
 

wendal

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Well, I've been trying to get my shorties installed since last Friday, and I have learned 1 thing. I am too old and out of shape to be crawling on my back on a concrete floor, on my knees for long stretches, and doing things that require I remove pieces from the engine.

I finally got the damned original manifolds of Monday evening. It is Thursday, and I finally got the drivers side header on, only to find that my stage 8 bolts are apparently TO LONG.

@kbuskill, did you have to use washers with your stage 8 bolts?

I added washers, and they still seem too long. I can't get the headers snug to the block. I am open to suggestions...

Problem number 2 is that the passenger side rear bolt is KICKING MY ASS. I cannot get that bolt started to save my life. Ivm too short to reach it from the top, and the space is too small to get my hand in there from the bottom. Frustration does not even begin to describe what I am feeling. Suggestions are welcome here as well.

One thing for sure. I will Not be doing anything else myself that needs a lift. Especially since I don't have one.

790f43f8c27d82b6f5ea18e380e3920d.jpga33cbc4806276563825f186a072548c3.jpg1a3aef972b2ccd3202871b9aa08efc12.jpg3a36ea7c2baf4cb75306f7e682a39cfa.jpg0abcdd2f821a76a635b431e39c47859d.jpg5bfb73c41cd323cd214ec973a0963d42.jpg831247ca50e930b8d92ea504b2d22351.jpg16a1ac715720f632cccb2a0115a503b8.jpg

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R3cord303

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Well, I've been trying to get my shorties installed since last Friday, and I have learned 1 thing. I am too old and out of shape to be crawling on my back on a concrete floor, on my knees for long stretches, and doing things that require I remove pieces from the engine.

I finally got the damned original manifolds of Monday evening. It is Thursday, and I finally got the drivers side header on, only to find that my stage 8 bolts are apparently TO LONG.

@kbuskill, did you have to use washers with your stage 8 bolts?

I added washers, and they still seem too long. I can't get the headers snug to the block. I am open to suggestions...

Problem number 2 is that the passenger side rear bolt is KICKING MY ASS. I cannot get that bolt started to save my life. Ivm too short to reach it from the top, and the space is too small to get my hand in there from the bottom. Frustration does not even begin to describe what I am feeling. Suggestions are welcome here as well.

One thing for sure. I will Not be doing anything else myself that needs a lift. Especially since I don't have one.

790f43f8c27d82b6f5ea18e380e3920d.jpga33cbc4806276563825f186a072548c3.jpg1a3aef972b2ccd3202871b9aa08efc12.jpg3a36ea7c2baf4cb75306f7e682a39cfa.jpg0abcdd2f821a76a635b431e39c47859d.jpg5bfb73c41cd323cd214ec973a0963d42.jpg831247ca50e930b8d92ea504b2d22351.jpg16a1ac715720f632cccb2a0115a503b8.jpg

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Have you tried re using the original bolts with the headers? I bought stainless header bolts from TSP and wound up not using them- I may be able to measure them tomorrow and see if they’re different from yours. I think they were shorter than stock because the mechanic that replaced my engine didn’t use them.
 

wjburken

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Well, I've been trying to get my shorties installed since last Friday, and I have learned 1 thing. I am too old and out of shape to be crawling on my back on a concrete floor, on my knees for long stretches, and doing things that require I remove pieces from the engine.

I finally got the damned original manifolds of Monday evening. It is Thursday, and I finally got the drivers side header on, only to find that my stage 8 bolts are apparently TO LONG.

@kbuskill, did you have to use washers with your stage 8 bolts?

I added washers, and they still seem too long. I can't get the headers snug to the block. I am open to suggestions...

Problem number 2 is that the passenger side rear bolt is KICKING MY ASS. I cannot get that bolt started to save my life. Ivm too short to reach it from the top, and the space is too small to get my hand in there from the bottom. Frustration does not even begin to describe what I am feeling. Suggestions are welcome here as well.

One thing for sure. I will Not be doing anything else myself that needs a lift. Especially since I don't have one.

790f43f8c27d82b6f5ea18e380e3920d.jpga33cbc4806276563825f186a072548c3.jpg1a3aef972b2ccd3202871b9aa08efc12.jpg3a36ea7c2baf4cb75306f7e682a39cfa.jpg0abcdd2f821a76a635b431e39c47859d.jpg5bfb73c41cd323cd214ec973a0963d42.jpg831247ca50e930b8d92ea504b2d22351.jpg16a1ac715720f632cccb2a0115a503b8.jpg

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A couple thoughts:

What is the difference in thickness of your original header plates and the new ones and how does that compare with the difference in the lengths of your bolts? Your new ones look a little shorter in the pictures.

Might try and run a tap into the holes to make sure the threads are clean.

To get the rear passenger bolt on, might try taking the wheel and fender liner off and coming in from the side.
 

BG1988

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I did pretty much the same with my 3 kids. My biggest gripe with the backup camera is that it gives you a narrow field of view. It’s like driving forward with blinders on. I have nothing against them
well it did save my butt from an insurance scam...

I pretended the"back up " camera was a dash camera and it recorded everything he said
other wise I was have been screwed they had 5 people inside and they all 5 claimed they had "injuries"


I think he was just trying to get out of his car payment as he totaled his Prius. he must have backed into a high up vehicle or something earlier in the week... as there was damage on the hatch door (no where that would touch the tahoe) as the bumper would make contact first before it would hit my tail light duh
 

kbuskill

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Well, I've been trying to get my shorties installed since last Friday, and I have learned 1 thing. I am too old and out of shape to be crawling on my back on a concrete floor, on my knees for long stretches, and doing things that require I remove pieces from the engine.

I finally got the damned original manifolds of Monday evening. It is Thursday, and I finally got the drivers side header on, only to find that my stage 8 bolts are apparently TO LONG.

@kbuskill, did you have to use washers with your stage 8 bolts?

I added washers, and they still seem too long. I can't get the headers snug to the block. I am open to suggestions...

Problem number 2 is that the passenger side rear bolt is KICKING MY ASS. I cannot get that bolt started to save my life. Ivm too short to reach it from the top, and the space is too small to get my hand in there from the bottom. Frustration does not even begin to describe what I am feeling. Suggestions are welcome here as well.

One thing for sure. I will Not be doing anything else myself that needs a lift. Especially since I don't have one.

790f43f8c27d82b6f5ea18e380e3920d.jpga33cbc4806276563825f186a072548c3.jpg1a3aef972b2ccd3202871b9aa08efc12.jpg3a36ea7c2baf4cb75306f7e682a39cfa.jpg0abcdd2f821a76a635b431e39c47859d.jpg5bfb73c41cd323cd214ec973a0963d42.jpg831247ca50e930b8d92ea504b2d22351.jpg16a1ac715720f632cccb2a0115a503b8.jpg

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I didn't have any issues with my stage 8 bolts... they do have two different versions for our engines though... the standard length and a longer length... maybe you got the long version by mistake???

Don't give up, you will get it... they look great by the way.
 

wendal

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A couple thoughts:

What is the difference in thickness of your original header plates and the new ones and how does that compare with the difference in the lengths of your bolts? Your new ones look a little shorter in the pictures.

Might try and run a tap into the holes to make sure the threads are clean.

To get the rear passenger bolt on, might try taking the wheel and fender liner off and coming in from the side.

Fender liner already off. It seems that the angle is a bit weird on the rear passenger bolt. I cannot get it started. I don't want to cross thread the bolt. What I need is likely an extra set of hands. If I put a bolt in one of the other holes to hold it, then it doesn't exactly line up. It needs to go in first, but I need a 6' friend with long arms to start the bolt from the top, while I hold the header from the bottom.
 

wendal

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I didn't have any issues with my stage 8 bolts... they do have two different versions for our engines though... the standard length and a longer length... maybe you got the long version by mistake???

Don't give up, you will get it... they look great by the way.

Do you happen to know the part # for the shorter bolts by chance?
 

wendal

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Do you happen to know the part # for the shorter bolts by chance?

I just found the part number, and I have the shorter bolts... The OEM manifold is thicker than that Gibson header, but it doesn't look like that much... I'm going to try putting the bolts that shipped with the headers in, I think...
 

Doubeleive

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Fender liner already off. It seems that the angle is a bit weird on the rear passenger bolt. I cannot get it started. I don't want to cross thread the bolt. What I need is likely an extra set of hands. If I put a bolt in one of the other holes to hold it, then it doesn't exactly line up. It needs to go in first, but I need a 6' friend with long arms to start the bolt from the top, while I hold the header from the bottom.
have you tried a flexible shaft socket driver? they look like a wound up spring and bend in any direction, there not good for torquing anything down but are great for getting bolts started in impossible places, or a milwuakee cordless ratchet?
 

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