how hard is this, how long should it take, they want $265 for diagnosing it and replacing it , should i attempt to do this on my own?

One of the ignition coils? Do you have a 10mm socket? Do it yourself but make sure they tell which one is bad first whats the problem?

If you have changed your spark plugs you have already removed your coils before. If that $265 is for diagnostics, parts and replacement. Probably not that far off the price.

ToyotaPartsales.com(trdparts4u.com) shows list price of $97 and their internet sales price of $70 for the Ignition Coil plus shipping(usually around $10).

yeah that s all of it and seems to be the problem that i'm having with misfire on cylinder 1, the truck was having a rough time getting up to speed, also what are the chances of the others going now? i heard that once one goes the rest aren't far behind and that i should do a plug and wire change asap as well...thoughts on this?

well just my quick math tells me you can get all 3 coil packs with shipping and do them yourself for same price shop is charging for 1 of them. Yes they even offer expedited shipping options.

well thats the problem is i'm at 160 now for diagnostics and then $260 out the door for the replace coil pack, this same thign happened a few weeks ago and the problem just went away they checked it out for about 2 hours that day and rove it a bunch and gave it back free of charge thinking that it was just a bad coil wire and not the pack, today on my way in to work it comes back i drop it off to have them figure it out, they charge me the labour to find the problem, coil pack this time ,$12 in gas (was low last time i dropped it off) , and i'm at $160 they have a denso coil pack on teh shelf and tell me for $260 otd they can replace it, i told them to just go ahead and do it as i would only be saving $30 or so, my above question is about what to do if anything next, should i just swap out the other coil packs,plugs and wires or ride with them till i need to change them again (swapped in @ 150K now at 225K, mi)

I don't buy the "one is gone, the others are going too.." idea. The other two could easily outlive the vehicle. On the plugs, the two on that coil could easily be fouled, and should be inspected or changed--if due, yeah, do all six. The wires have no causal relationship with the coil failure, but if due (I did mine at 100k), why not? The original factory plug wires have the year on the wire--THOSE would be due.

I figured they had a couple hours into it to determine for sure it was the coil pack. That is why I had this in my first response. I also know that some shops will offer free diagnostic in hopes to get the repair which is why I had also posted the quick math posting. The fact that they are only charging Dealer list with no additional mark up is good.

yeah i thought the change was at or around 80K-100K
i plan on doing everything plugs and wires question is do i need to do the packs as well and how big of a pita is the back side of the engine to get to for swapping out plugs i hear those are a joke to get to....

got that from this guy on this thread from that forum
COIL PACK REPLACEMENT 3.4 symptoms,slight skip,results, CHECK YOUR COIL PACKS TODAY - YotaTech Forums

I agree with Durk you should be good with just the one replaced coil pack. The only plug that is a PITA is the drivers rear. The others weren't to bad. I think I used a 6" and 3" extension in order to get to it.

yeah they're a good shop been with them for years and they are the ones who take the dealerships overflow, so i know they know what they are doing, thanks for the help on this one pikeman just wanted to make sure it was cool to give them the "go ahead and fix that" order without doing some quick checking.

thanks alot guys!

also denso plugs? and what wires? suggestions? not looking for anything fancy for more power and such just want the engine to run well, so stock numbers would be sweet or whatever your guys use. as i know the 2 of you don;t put crap in your trucks

I used all factory stuff. I know Brian2sun has posted the numbers in a few other threads asking about plugs and wires. Our trucks don't like after market plugs or wires so stick factory.

Cool thanks pikeman i'll get to a searchin :smile:

I just read that link. I have a slight pulse feeling while cruising at 2000 rpms. I wonder if I have a coil going bad.