99 4.8 Silverado Plugs And Wires

volfan · December 28, 2009

99 silverado plugs and wires what kind to replace with??how difficult and time consuming to change???

ColoradoSkiCountry · December 28, 2009

I'd go ahead and stick with the AC/Delco plugs, as for wires, there are a few opinions on that but I've always gone with AC/Delco with those as well. Time to get everything changed out? 30 Min to 1 hour. Depending on how drunk you are. Don't forget to change the air filter.

volfan · December 28, 2009

I'd go ahead and stick with the AC/Delco plugs, as for wires, there are a few opinions on that but I've always gone with AC/Delco with those as well. Time to get everything changed out? 30 Min to 1 hour. Depending on how drunk you are. Don't forget to change the air filter.

someone reccomended belden wires?

trucc_boi · December 28, 2009

i got the cheapest wires you can get at autozone for my blazer when i did it..

worked just fine.. i dont even remember the brand name.

but you cant go wrong with delco.

Stevens03 · December 28, 2009

AcDelco all the way. Can't go wrong with those. Very easy to swap, but there's always 1 plug that gives you a problem

MADS99 · December 28, 2009

Like everyone else has mentioned,A/C Delco Iridium are the way to go.I went with JBA 8mm Plug wires.

2000DV4.8 · December 28, 2009

AC Delco Iridium plugs, and AC Delco wires. The only hard part is getting to the last plug on each side, but even that isn't bad.

CapitalTruck · December 29, 2009

Be sure to save and re-use the heat shields that are on the rubber boots near the plug. Buy a universal joint to stick on the plug socket to get that rearmost passenger side plug out. Before you put the new plug wires on put some dielectric grease on the new boots (where they meet the plug) so you'll be able to get them off next time.

dlstewart01 · December 29, 2009

Be sure to save and re-use the heat shields that are on the rubber boots near the plug. Buy a universal joint to stick on the plug socket to get that rearmost passenger side plug out. Before you put the new plug wires on put some dielectric grease on the new boots (where they meet the plug) so you'll be able to get them off next time.

That last plug is easy. Use a 3/8 socket. Just use a short extension. Put the socket on the plug, then put the extension in the socket, then put the ratchet on the extension. Works for me and I'm a crotchy old geezer.

knipper_03 · December 29, 2009

If you can change your oil, you can change plugs. These are great cause you can't eff up the wire routing, lol.

volfan · December 29, 2009

If you can change your oil, you can change plugs. These are great cause you can't eff up the wire routing, lol.

what exactly hold the heat shields in place,the plug wires??

2000DV4.8 · December 29, 2009

The heat shield is slipped over the end of the wire.

When you see it, you'll understand. It's the opposite of complicated.

Nytemare · December 29, 2009

Just dont overtighten the plugs...you do not want to strip the threads in the head....that costs some big money. Just snug them up with the wrench and give them 1/16th of a turn past hand tight. Or you can use a torque wrench to be absolutely sure...I done know the torque though...I've always done it by feel.

As for wires and plugs.

I have MSD wires....mainly because they have a lifetime warranty and they cost me 5 bucks more than stock replacements, w/o the warranty.

I have NGK TR-55 Platinum plugs...they are NGK's factory replacements.

Again...like was said a few times, Cant go wrong with AC Delco.

volfan · December 29, 2009

do the pug wires just pull off the coils?also where to i look find the part# on the coil??i was told i would need this because there are 2 different sets of wires??