Tune up almost done (spark plug pic)

[YNOT]

I cleaned the engine bay and changed the plugs and wires. Back in 2001 was GM putting 100,000 miles plugs in? I'm wondering if there is 105,000 on the old AC Delco plugs or if they had been changed by the previous owner.

Anyways here is what a old .060 gapped plug looks like next to a .038 NGK plug.

So far I've done, front and rear diffs, transfer case, tranny + filter, coolant, engine oil, plugs, wires, air filter, pcv valve, fuel filter, cabin filter. I need to still do the belt. What about power steering fluid, should I mess with that?

 

[coopiesb]

wow clean as hell man and those spark plugs looked about done...

 

[NJ04HOE]

Damn!! I wish mine was that clean under my hood.
I recently changed my plugs @ 90,*** mine looked just like that and since I changed them I noticed a big improvement in my gas mileage.
I need to do everything else you listed soon, as far as the power steering I don't remember exactly what the schedule was to change it but i'm sure it won't hurt so I say go for it.

 

[Cobra]

wow clean as hell man and those spark plugs looked about done...

What you clean the bay with?

 

[NathanJax]

What you clean the bay with?

He says Simple Green...

http://www.tahoeyukonforum.com/forum/showthread.php?t=2578


.

 

[TheFuzz]

The old ones you pulled out were Delcos? The electrode looks a lil too big to be a 100K Iridium plug, but I've seen stranger things. Mine looked about toasted when I pulled them out, too. I like the Delcos...I changed em once, and won't ever have to do it again if all goes well.

 

[tybardy]

back when they gapped em to .06 it looks like...

 

[YNOT]

The old ones you pulled out were Delcos? The electrode looks a lil too big to be a 100K Iridium plug, but I've seen stranger things. Mine looked about toasted when I pulled them out, too. I like the Delcos...I changed em once, and won't ever have to do it again if all goes well.

it said ac delco and ngk on them so which is it?

 

[JKmotorsports]

I cleaned the engine bay and changed the plugs and wires. Back in 2001 was GM putting 100,000 miles plugs in?

So far I've done, front and rear diffs, transfer case, tranny + filter, coolant, engine oil, plugs, wires, air filter, pcv valve, fuel filter, cabin filter. I need to still do the belt. What about power steering fluid, should I mess with that?

IIRC, I believe my manual states 100k mile plug intervals.

Also flush and refill your brake system. Brake fluid absorbs water over time and becomes less effective. You can also clean your tb and maybe even a Seafoam treatment.

 

[TheFuzz]

it said ac delco and ngk on them so which is it?

Delcos are made by NGK, same difference. Big +1 on the brake fluid change too, I just had that done yesterday at the stealership ($120 out the door...expensive, but I didn't have the time to do it myself), and it actually made a noticeable difference in brake performance. Nothing crazy, but it helped a little, and it's nice knowing that it's done.

 

[tybardy]

is flushing a break system something I can do myself? Basicly I'm asking is special tools are needed...?

I have some more small tune up items I want to get done in the fall.

also, I second the seafoam, i didnt know what the hell it was till i joined TF... but it really does work well, I bought two bottles. One whole bottle into the gas tank, 1/2 to 2/3 into the vacuum line, the rest into the crank case about 2 weeks before i changed the oil. great stuff!

---------- Post added at 12:35 AM ---------- Previous post was at 12:32 AM ----------

oh yea, and speaking of PCV valve, has anyone upgraded to a "high persoformance" pcv valve, i just ran across one of these on the internet the other day and was curious

 

[TheFuzz]

A high-performance PCV valve? Seriously? I wouldn't waste my money on one dude, it's just a vent in the valve cover that helps recirculate unburned fuel back into the intake manifold. I don't know what possible benefit one could see from a high performance version, I'm sure the stock one is more than adequate.

Maybe blown engines would benefit from it? IDK.

 

[Cobra]

He says Simple Green...

http://www.tahoeyukonforum.com/forum/showthread.php?t=2578


.

thanks for the link...

 

[OKLAGMCRUISER]

is flushing a break system something I can do myself? Basicly I'm asking is special tools are needed...?

I have some more small tune up items I want to get done in the fall.

also, I second the seafoam, i didnt know what the hell it was till i joined TF... but it really does work well, I bought two bottles. One whole bottle into the gas tank, 1/2 to 2/3 into the vacuum line, the rest into the crank case about 2 weeks before i changed the oil. great stuff!

---------- Post added at 12:35 AM ---------- Previous post was at 12:32 AM ----------

oh yea, and speaking of PCV valve, has anyone upgraded to a "high persoformance" pcv valve, i just ran across one of these on the internet the other day and was curious

brake flush you can do at home...but not with one arm/hand...lol...j/k

 

[YNOT]

IIRC, I believe my manual states 100k mile plug intervals.

Also flush and refill your brake system. Brake fluid absorbs water over time and becomes less effective. You can also clean your tb and maybe even a Seafoam treatment.

pads will be needed soon, so i'll do fluid while i'm at it.

oh yeah i forgot i was going to clean my tb out.

i'm to scared to do seafoam through the vac line at 105,000 miles. i ran a can through the tank for the injectors though.

 

[TheFuzz]

Why would you be scared to do the seafoam at 105K miles man? Thats when the engine needs it the most, think about all of the shit built up in there that you could clean out...

If you do it right, you won't have any issues - whether the engine has 10K or 100K on it. Just take your time and it will work great.

 

[thumper_ehhhhh]

Why would you be scared to do the seafoam at 105K miles man? Thats when the engine needs it the most, think about all of the shit built up in there that you could clean out...

If you do it right, you won't have any issues - whether the engine has 10K or 100K on it. Just take your time and it will work great.

I've thought about seafoam but with all the crap coming out of the engine wouldn't it plug up the cat? I have to get emission tests every 2nd year so removing it isnt a option.

 

[OKLAGMCRUISER]

if you do a seafoam treatment have a new set up plugs handy just in case they get fouled or you may get left stranded....like i have twice...lol.

 

[tybardy]

If you do it right, you won't have any issues - whether the engine has 10K or 100K on it. Just take your time and it will work great.

seafoam is a really forgiving product from my experience, i cant really see how you could **** it up unless you just completely disregard the instructions and do something unimaginable, like pour 6 cans into the motor or something.

---------- Post added at 03:48 PM ---------- Previous post was at 03:43 PM ----------

i dont know what canadian emmisions laws are like man, but i get my truck emissioned every two years as well, havent had a problem yet and i have seafoamed twice since, now have 90k

 

[TheFuzz]

Thumper, I have emissions here in CO too. No issues with seafoam. There aren't really and solid chunks of stuff coming out that are big enough to plug up a cat - the seafoam dissolves the carbon deposits in the engine which are then burned up during combustion and come out as smoke. It's good stuff, and generally safe to use. Just follow the instructions on the can.