There are just some days I wish I didn't turn wrenches

[Fless]

Reaching in from the top and bottom to gain access to #8 spark plug, was a chore, to say the least. The cat converter was hot just from pulling the Suburban up on the ramps. Left forearm and right hand suffered some wounds. Had to be done. These pics will be going to my landlord to show him what his Suburban did to me.

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In your tools you should have a set of Kevlar sleeves.

 

[89Suburban]

Reaching in from the top and bottom to gain access to #8 spark plug, was a chore, to say the least. The cat converter was hot just from pulling the Suburban up on the ramps. Left forearm and right hand suffered some wounds. Had to be done. These pics will be going to my landlord to show him what his Suburban did to me.

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Busted knuckles garage.

 

[OR VietVet]

Range AFM disabler is plug and play or get it tuned out.

Next time you take it for a test drive, change the DIC to your fuel economy screen and you’ll see it drop to V4 once you get up to cruising speed and let off the throttle

Should look like this I think. The Yukon looks slightly different but same concept
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Doing a tune up on my 2015 sometime this week. Not looking forward to doing the plugs after reading your thread. I’ve known it’s a pain but you just reminded me.

Thanks for the info. If you have the plastic covers on the valve cover, it is a PITA but does pop up when pull on it. Get the plug wire off from top, if can, but save some time and use a 5/8" spark plug standard plug socket with the 6 point on the end. That should be a 3/4" or 19mm on the end. Use a shallow socket and a shorty flex head 3/8" ratchet and once you break it loose, it is pretty easy from there.

 

[OR VietVet]

I was gonna take the day off and then.....neighbor down the street, with the 2017 Cherokee, called and asked if I could look at her Jeep because she had it warming up but after 10 minutes it had no heat and there was steam coming under hood on the p/s. Found a cracked reservoir tank and a small hole in the feed hose on bottom. Only place that showed coolant leaks on it was directly under the tank. Tore it down and found the problems and threw in a thermostat as well. Ran it and built great heat, I had checked for oil milkshake and found none. See pics. When all done, the reservoir tank cap says 21 pounds and I pumped up to 19 psi and let sit for 10 minutes and never dropped at all.

I did not replace the entire hose because it ran all over the place. I got a 3/4" foot long piece of heater hose and did a butt splice and all is good.

 

[LsHart]

Reaching in from the top and bottom to gain access to #8 spark plug, was a chore, to say the least. The cat converter was hot just from pulling the Suburban up on the ramps. Left forearm and right hand suffered some wounds. Had to be done. These pics will be going to my landlord to show him what his Suburban did to me.

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Mechanic hands and arms for sure!!