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Tune up, tell me how I did...

Recently did a tune up, curious on feedback.

The car info: 05' GTP, 57k/miles, family car. second owner, unknown maint. and service history so I decided to start a baseline.

Oil change: mobil-1 10w30, fram filter. old oil looked decent, no sludge and it was almost transparent so I think it was changed regularly. peak inside valve cover showed no obvious sludge build up.

Supercharger oil change: used 2 of GM's recommended oil, (it doesn't smell that bad) old oil was dark, but I did not keep track of exactly how much came out, I filled to the threads so that it just barely was leaking out. I think that the level was low.

K&N drop in filter, oiled.

NGK plugs, stock heat range.

new thermostat, stock 195.

complete drain and flush of coolant system with 50/50 dexcool. old coolant seemed a bit sludgy from the motor, but clear in the radiator. I live in Louisiana and I think that the local service shops put tap water in the car, and it is very hard water that leaves stains in our sinks and toilets, so i think that may have contributed.

Rotate tires, has bf goodrich rubber on it that still has little nubbies on the sidewalls and tons of tread.

brake pads are about halfway through all around.

swapped out some power steering fluid, mostly to see the condition of the fluid for any sludge or burned odors etc. fluid was murky but otherwise normal.

transmission fluid and filter done by service shop, used ac delco atf and filter at dealer.

PCV replaced, cleaned throttle body.

serpentine belt replaced.

The battery looks original, i was thinking about just getting one in a week or so, just for the heck of it.


Anything else I could do? do better? I hear that 05' started putting an integrated fuel filter and pump unit, expensive and a ***** to replace I bet.

anything I can do to prolong the life of my supercharger? any servicing that can be done yourself? is there a better oil to use than the GM? I hear people's stories about blower failure after 100k/miles.

How about my tranny, do these vehicles come with any sort of trans cooler, or is it in the radiator like some vehicles? is there a company that makes a tranny cooler kit that is specific without any cutting or bending hoses and things to leak? I would like a heavy duty trans cooler to prolong my tranny life. I remember that police issue vehicles have heavy duty external coolers, like the older caprices with LT1's, they had a large cooler and all the hoses were goodyear high miler, I would like to use the high miler hoses on my vehicle when it comes time, they last forever.

I appreciate any feedback and pointers!
 
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get a extra universal cooler and bolt it somewhere if you feel the need, heat isn't really the issue with these trannys though. On the rest great job and I LOVE seeing people take care of there stuff.

2 things i would add though...Change your fuel filter and have your service center do a fuel system flush (valvoline pro kit is the best) and also get rid of your Dexcool, i know you just put it in but Dexcool is basically the reason all GM's v6's eat intake manifold gaskets. Get Zyrex G-05 (my personal favorite) or some prestone and fill it up
 
Nice job man, you really didn’t miss anything based on the stated miles and model.:th_biggrin2: There are a couple items you could do, if you want.
Drop some SeaFoam in the gas tank. I wouldn’t even worry about the fuel filter for another 100k.
Maybe clean your MAF sensor, just be gentle with it.
And in the spring, do a tranny pan drop. And fill with Dexron6 (I just say this because I‘m not sure when GM upgraded), with Dexron6 a cooler is totally not needed IMO. Just don’t leave the shop without checking the fluid level, and then check it again when you get home.

Also, you should be fine with the Dexcool, just use distilled water. I’m thinking the 04+ have better gaskets, but to be honest I’m not 100%.
 
thanks for the feedback, I jumped the gun when i posted this saying that the tranny filter was done by dealer, because i wrote the post late at night expecting to have the tranny done next day. They told me they don't do a whole fluid change, just pan and filter, so I decided to do it myself, what do you guys think about this fluid:

mobil 1 synthetic atf, says it's compatible with conventional, and I love mobil. do the job myself, as for what the tranny calls for, mobil says it's good in 05' and older, 06' and up use the type VI, but being that this fluid is top grade synthetic, I figured it would last alot longer, cleaner and help rejuvenate the old fluid, i wanted to use some lucus product transmission fluid as well, I love their products.

Now what if there were a way to access all the fluid, even in the torque converter? any home do it yourself rigs people invented to do that?

thanks again for the feedback! and happy new year to all.
 


theres really no way that you could flush it that would be worth your time or money. Just call your local decent named garage and tell them you want to do a trans flush but with your fluid. Best way for them to do this is to do a flush with cheap fluid, then drop your filter again and replace it, then flush it back with your Mobil One. That way its TOTALLY clean and you have all Mobil. I've done this for multiple customers and its impressive the extra crap you get outta there
 
mobil 1 synthetic atf, says it's compatible with conventionalconverter?

any home do it yourself rigs people invented to do that?

I looked up the tranny fluid requirements for the 05, just because I’m bored. The 05s still only required the Dexron3. So the stuff you put is more than adequate, that being said I still would have used Dexron6 myself.:cool: I’m just glad to see like minded people out there, it never ceases to amaze me how many people never change their tranny fluid until they have noticeable problems. And then rush out and change their tranny fluid thinking it will fix the damage.:th_coocoo: Story time now, I was talking car stuff at work. And this guy told me I was wasting my money changing tranny fluid, because he never has. I was like ya, if I could afford a new car every two years I wouldn’t either! I told him for the cost of one tranny replacement, you can do a life time of fluid changes. Some people’s kids.:rolleyes:

Also, since you’re a big do it yourselfer. I have heard you can tap a drain into your torque converter. But honestly I would never recommend that to anyone. IMO if you do a pan drop about every 75K your going to be golden.
 
you can flush it yourself easily. unhook a tranny cooler line and start the car. while its running keep adding new fluid through the dipstick, once you see fresh red fluid coming out of the cooler line, its completely flushed.
 
only thing that can be a concern is the freshly oiled K&N filter, can drip some oil on the MAF and throw a lean code.other than that good job
 


you can flush it yourself easily. unhook a tranny cooler line and start the car. while its running keep adding new fluid through the dipstick, once you see fresh red fluid coming out of the cooler line, its completely flushed.
Ive seen this done before and was a mess helps to have some rubber hose and big catchpan and help

And my personal preferance on change intervals are fluid change at 25k and pan drop at 50k and so on
 
you can flush it yourself easily. unhook a tranny cooler line and start the car. while its running keep adding new fluid through the dipstick, once you see fresh red fluid coming out of the cooler line, its completely flushed.

I like this idea, I was going to see if anyone has done this, because it makes the most sense, but you beat me to the punch. Thanks. As for the K&N filter and the overfilled supercharger issue, i will drain out about an ounce of oil in the SC, just to be safe, and as for the K&N, it's lightly oiled because I clean the air filter with each oil change, sometimes more frequently because oiled filters trap more dirt and therefore should be cleaned more frequently anyways, but i never saturate the filter so I should be fine.

You guys rock, thanks again for all the info!
 
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