Arctic_fox

Sorry for late reply holidays, giant storm all that fun stuff and all. But anyway im just going off what the dealer told me as to why my truck is rough starting with a bit of brownish black smoke (tiny tiny bit) and huge plumes of white, its also running very rich with a very minor misfire, they said plugs are likely bad and will fix it, as for the check engine codes it says its the O2 sensors dealer cleared them and they havent come back on, one shop claimed the alcohol sensor was tripped and had to be reset or the ecm replaced due to too much ethenol in a flex fuel truck -_- seriously just because im young and fat does not mean im stupid and know NOTHING about cars. Dealer wants $400 to do plugs and wires and local shops are averageing around $350+ after labor hence why i want to try on my own...heh, things i have checked and done so far are coolant is bright orange looks like brand new, oil is dark gold and needs a change but looks normal for 6k miles (i use mobile 1 full synthetic 10k dexron oil) no weird smells or residue, no leaks i can find, and truck runs fine abet rich when it warms up. Best guess was plugs as the truck spent a lot of time offroad in the oilfields on dirt (i had to change filters every 2 or 3 weeks due to the dust) and i tended to idle a lot because -40 is bullshit without heat, next guess is o2 sensors are actully bad, or that my injectors are having issues, i ran a can of seafoam through a full tank to see if that helped and nada. So am i even on the right track?

Mkay will do, and nah that guy knew what he was doing, i asked him and he made sure to clarify it was $159 for each wire he even pulled them out to show me the price tags on each and rang em up for $1300, im suprised he didnt try to sell me muffler berrings and blinker fluid, since he was asking cash only im sure he was pocketing the diffrence.

You lost me, if you assume i know just enough about my truck in general to put the correct fuel in and change the oil or a bad altenator you have the sum knowledge of what i know, im a total beginer and everthing i think i know comes from forums youtube and this weird book in my glovebox with a chevy logo that says "instruction manual" whatever that means In short what is emi, and what are taylors in 70-110? Im assuming spark plugs but whats with the 70-110? Apparently multi quote doesnt like me today....anyway aside from the obvious of removing worn out parts what does an ignition coil replacement do and is it worth doing at only 85k miles? I know that the general idea is it takes the low voltage from the battery and boosts it to the spark from the plugs, But other then doing the job more efficently is there another benefit? Also i will look into summit racing later today i really do need to find plugs asap my trucks misfiring and rough starting and running due to my plugs being worn to the nub i assume (hope).

So as title says im attempting to learn to do as much maintanace as i can on my truck myself and need to change the plugs and wires in my 2011 silverado 1500 5.3 flex fuel, problem is i have never done so before and the local parts store is trying to fleece me. Ive watched some youtube videos so im sure i can do the actual change once i figure out what socket i need but i dont know what parts i need, the local parts place says the ONLY plugs that work are bosch +4s that are $36.99 EACH that i need 8 accel 9000 wires at $159.99 EACH (not a pack each so 159.99 x8) and any others will melt and 32 packets of goop at $5.99 each or they will short out, so over $1000 for plugs and wires......oh and cash only of course.... Yea......i didnt fall out of the idiot tree hit every branch on the way down and have the tree fall ontop of me so im here to ask what i really need, google and lots of sites say ac delco iridiums but i dont know what model (i.e t55 or t55IX) what gap or what the numbers at the end i.e 41-110 mean or if they matter. Im also unsure which wires to get but the ones i have are cracking so i do need them. Any help would be apprecated.