Thread: 2005 Grand Prix GT 100,000 mile tune up

plugs
wires
air filter
new trans fluid

For wires go with delco wires off rockauto.com or some from your local auto store that have a warranty with them. Should only cost 25-40 bucks either way.

Plugs, either go with stock replacements or to save money and go with the same thing but different brand grab some autolite 606 plats. I'd go the autolite route.

And take your thottle body off the clean that thing like nobodys business.

also if you have not done anything to the transmisson yet..........dont get a flush from a shop. Do it yourself. Buy a filter and 8 quarts of trans fluid and change it yourself, its very easy.

Remove the trans pan slowly (like 15 bolts total) and let it all seep out into a pan, once its all done, remove pan and replace filter and bolt pan ( re-use the original pan gasket if you can) back up, and just make the bolts TIGHT, but not too tight cuz they make break, so very snug is good enough.

Then add fluid back in ( add like 6-7 bottles first, then start car) and with the car running and up to temp, check the fluid level and add as needed.

Originally Posted by mrockteacher

Thanks, I have never done anything with the transmission fluid. I was a little leery because I am getting some slippage, mostly when shifting from reverse to drive. Not all the time, just occasionaly.

I have replaced the transmission fluid on other vehicles I have owned so its something I can handle.

Is plug replacement something a novice like me can do? I cant see the back ones. I have heard that you have to rock the engine forward to get to them? If that is the case then I would not attempt.

I changed my plugs (skipped the wire change as mine are still in great shape) and it took maybe an hour. NO engine forward routine at all. Just feel back there for them and you'll get them. The hardest plug to get to was the back one on the far left as you're looking at the car. That one alone took me 20 minutes. The others were a piece of cake.

I have yet to do a fluid change on my transmission but am experiencing the exact thing you described and need to do a filter and fluid change very soon.

Yea plugs are simple.

How big are your arms????

All you gotta do is be able to reach the back ones. I have skinny arms to I can reach them no problem.

BUt other wise, yeah, just pull the spark plug boot off and remove the old plug and put anti-sieze on the threads of the new spark plug and re-install.

If you cant reach the back ones very well, just remove the 2 top motor mounts and grab a ratchet strap and hook onto the alt bracket or the motor pull mount in the rear and just ratchet it forward, its simple.

I would not consider my arms "skinny" and I was able to get back there no problem so it'd take quite a bit for your arm to be too big for the job The one plug I mentioned, however, does take considerable patience and concentration

In all cereal-ness going 100k on plugs is a little much. Id say they should be a standard maintance item at 30-40k miles if using the stock style plug.

I'd throw in a serp belt change and radiator flush and fill to this good list.

Originally Posted by Fivefingerdeathpunch

In all cereal-ness going 100k on plugs is a little much. Id say they should be a standard maintance item at 30-40k miles if using the stock style plug.

Really?? Every vehicle manual I've seen has stated changing the plugs at 100k.

Sure thats what the manual says, but if you take the spark plug out at 50k miles it aint gunna look new and its gunna have age to it.

I'd just change them faster to know that they are somewhat fresh. Everyone has a different opinion on this tho.

over the spark plug boot is like a small metal shield. That will come off with the spark plug wire when you pull it off.

Yes its tight back there, but use your sense of feel and work your way through it. It not that bad to do.

Originally Posted by Fivefingerdeathpunch

over the spark plug boot is like a small metal shield. That will come off with the spark plug wire when you pull it off.

Yes its tight back there, but use your sense of feel and work your way through it. It not that bad to do.

x2....It's really not bad at all. Just use your sense of feel and touch and you'll be alright. Just concentrate and it's not really that bad....

Originally Posted by Fivefingerdeathpunch

Sure thats what the manual says, but if you take the spark plug out at 50k miles it aint gunna look new and its gunna have age to it.

I'd just change them faster to know that they are somewhat fresh. Everyone has a different opinion on this tho.

I hear ya....to each their own and it obviously doesn't hurt to change them sooner.....

I didnt see anything about brake pads...Stopping is good sometimes. And also, make sure to check your power steering fluid level. Its in a PITA spot so people tend to forget about it. Its on the firewall side of your engine, below the alternator.