any tips on changin the #8 spark plug???
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InTruckDesign
Full Access Member
pull the fenderliner and use a couple of swivels.
AZSCTACO
Full Access Member
......what he said and take off the passenger side front wheel to get easier access
domin8
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I'd also like to add that patience is key.
Ponch
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I have a 2009 Suburban. I left it in to tackle it another day. Whoever designed this vehicle should be taught a lesson as it were. That said, I'll try taking the fender liner out and the wheel off. The thing is, the AC lines and the firewall make it a real tight fit. It's a very stupid design.
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Yep...fender liner out, a couple swivels and extensions, patience and focus is key. It's a huge PITA to do. I did mine last spring. Too me a half hour to do 1-7 and about 2 hours for #8....
clay101
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I'd imagine you've got it out by now, i have a 07 Yukon XL with the 6.2L and i was able to get mine from underneath, burnt myself a few times on exhaust as it was still hot 
monolith092068
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Tahoe Spark Plug #8 Tip
Like others I struggled to figure it out - but here's what worked quite well.
Problem: My 3" socket extension was too long and I just couldn't reach that bugger from the underside, and I was determined not to take off the fender liner.
So here's what worked -->
I started with a 3/8" drive spark plug socket, then "attached" a 3/4" shallow socket to the hex top of the spark plug socket. I used some electrical tape to fix them together. This gives you a very short "extension" that actually fits between the A/C components and the exhaust manifold. It takes some reaching, but you can get the socket onto the plug first, then attach the rachet onto it and actually have room for about 1/4 turns.
I did the other 7 in about an hour, #8 using this method only took about 15 minutes. No crawling underneath, no wheel removal, no skinned knuckles.
Like others I struggled to figure it out - but here's what worked quite well.
Problem: My 3" socket extension was too long and I just couldn't reach that bugger from the underside, and I was determined not to take off the fender liner.
So here's what worked -->
I started with a 3/8" drive spark plug socket, then "attached" a 3/4" shallow socket to the hex top of the spark plug socket. I used some electrical tape to fix them together. This gives you a very short "extension" that actually fits between the A/C components and the exhaust manifold. It takes some reaching, but you can get the socket onto the plug first, then attach the rachet onto it and actually have room for about 1/4 turns.
I did the other 7 in about an hour, #8 using this method only took about 15 minutes. No crawling underneath, no wheel removal, no skinned knuckles.
12rtstp953
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From the top with snap on swivel socket...fits perfect
---------- Post added at 07:58 PM ---------- Previous post was at 07:58 PM ----------
Forgot to add... Make sure engine is cold...manifolds stay hot for awhile
---------- Post added at 07:58 PM ---------- Previous post was at 07:58 PM ----------
Forgot to add... Make sure engine is cold...manifolds stay hot for awhile
jstutz101
Member
I just bought a 07 Yukon with 99000 miles on it so Ill be changing the plugs soon. I was wondering if this tool - http://www.amazon.com/GearWrench-81...UTF8&colid=6PGR3QB234A2&coliid=I2HGMKUK65T4GD would make it easier to get the #8 plug out?
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