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Old 05-03-2008, 03:04 PM   #1
HitandRunDriver
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Default Replacing spark plugs


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Its about that time to do my spark plugs! I'm going with a set of Bosch platinum iridium fusion and i'll also swap the wires while i'm at it. My question is....would i, as an 18 year old with average mechanical skill be able to make the change myself? I have a haynes repair manual for reference but still not 100% sure if i want to take the plunge. Any thoughts?
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Old 05-03-2008, 09:58 PM   #2
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It's not that difficult. The rear plug on the passenger side is the most difficult to wrench on. The toughest part for me was getting the plug wires off. It helped to twist them while still on the plug. Just helps free up the plug wire from the plug. Give yourself a good hour or so. But you can do it. About the worst thing you can do is cross thread the plugs. So make sure they thread in easily. In fact they will wiggle a bit even after you get them screwed in a ways. They should spin pretty easily until they are completely seated. Then you can give em a good one or two strong pulls/pushes.

Should be no problem, Take your time and be careful not to drop the plugs. Piece of cake. :thumbsup:
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Old 05-04-2008, 11:07 AM   #3
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Yep. Piece of cake. Like Val0412 said, make sure you screw the plugs in by hand first, and after a couple of turns you can put the socket/wrench on there.
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Old 05-04-2008, 11:53 AM   #4
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change the wires one at a time, and match your lenghts, that way the firing order wont be compromised.
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Old 05-04-2008, 03:08 PM   #5
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Yeah pretty simple! Save a lil money to
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Old 05-04-2008, 04:04 PM   #6
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All of the plug wires are pretty much the same. Coil On Plug, not possible to mix up firing order.
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Old 05-04-2008, 11:00 PM   #7
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sweet, thanks for your 2 cents...as far as plugs and wires, does anyone have any recommendations? I was looking at MSD 8mm wires but with all the brands out there i'm a little unsure
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Old 05-04-2008, 11:30 PM   #8
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Super easy to do but I wouldn't replace the wires unless you know one is malfunctioning (very rare and the stock wires are fine 100k+). For the plugs I'd recommend not going with the bosch plugs, if you really want platinum pick up a set of the ngk or the factory delcos (ngk makes the oem plugs). Here are some part #'s, you can just call a napa with the stock # and they should have them, I'm guessing you have a 00+ tahoe with a 4.8/5.3? They all work the same for any of the lsx truck motors.
2003 CHEVROLET TAHOE 5.3 V8 T FI
Spark Plug_________Part No.____Stock No.___Plug Gap
V-Power___________TR5_______2238______.040
G-Power___________TR5GP_____3186______.040
Laser Platinum______PTR5D-10___3784______.040
OE Laser Iridium_____ITR5F13____6044______.040
Iridium IX __________TR5IX______7397______.040

Plugs are really easy to do, just get a few angles and a few length extensions for a 3/8" ratchet and it will be done in no time
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Old 05-05-2008, 12:23 AM   #9
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yeah, its an 01 hoe with the 5.3
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Old 05-05-2008, 12:34 AM   #10
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Quote:
Originally Posted by boostaholic View Post
Super easy to do but I wouldn't replace the wires unless you know one is malfunctioning (very rare and the stock wires are fine 100k+). For the plugs I'd recommend not going with the bosch plugs, if you really want platinum pick up a set of the ngk or the factory delcos (ngk makes the oem plugs). Here are some part #'s, you can just call a napa with the stock # and they should have them, I'm guessing you have a 00+ tahoe with a 4.8/5.3? They all work the same for any of the lsx truck motors.
2003 CHEVROLET TAHOE 5.3 V8 T FI
Spark Plug_________Part No.____Stock No.___Plug Gap
V-Power___________TR5_______2238______.040
G-Power___________TR5GP_____3186______.040
Laser Platinum______PTR5D-10___3784______.040
OE Laser Iridium_____ITR5F13____6044______.040
Iridium IX __________TR5IX______7397______.040

Plugs are really easy to do, just get a few angles and a few length extensions for a 3/8" ratchet and it will be done in no time

Out of curiosity how come you wouldnt suggest replacing the wires at the same time ?
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