90k mile service

Posted: Sat May 10, 2008 9:18 pm Post subject: 90k mile service

I'm just under 90k and due in for an oil change... I have a minor tranny slip and am thinking I should flush the transmission fluid. I'm not sure if it's time for plugs/ wires or anything else... I've owned it since 40k and only changed the oil when it came time...

Any suggestions?

Posted: Sat May 10, 2008 9:44 pm Post subject:

I change my plugs yearly and wires every two or as needed.
Change your fuel filter, air filter if needed.
PCV valve.
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Good Bye.
BHO sucks.

Posted: Sat May 10, 2008 9:49 pm Post subject:

suggestions for plugs/ wires brands?

Posted: Sat May 10, 2008 10:26 pm Post subject:

Factory AC Delco wires.

Has your tranny fluid ever been changed? You will find a debate on whether or not you should get a flush. It could cause problems. Ideally, you just drop the pan and change the fluid and filter at appropriate intervals - 25k to 40k miles depending on other factors. I would suggest you try that first. I've seen cars have shifting problems and brownish tranny fluid before 50k miles.

Posted: Sun May 11, 2008 12:43 pm Post subject:

I would drain the transmission fluid and change the filter. I wouldn't worry about a flush. As far as wires go, the stock Delco ones are best. Some people like pretty colors and go with the MSD wires. The only thing you gain with them is pretty colors. There is no really performance boost.

You might also want to replace your PCV valve, fuel filter and whatever other maintenance things need to be done.

Posted: Wed May 14, 2008 6:18 pm Post subject:

So today i picked up:
Oil & filter, plugs, pcv, and fuel filter.

I'm gonna go to the gm dealer for a wireset and the tranny filter and gasket.

I went to replace the fuel filter, and I am having trouble locating the schrader valve (3100 series eng.), since I was told to let the pressure out first.

Posted: Wed May 14, 2008 8:06 pm Post subject:

You should not need a gasket for the transmission fluid change, only the filter. The pan gasket is a heavy duty rubberized metal gasket that should only be replaced if damaged. And the o-ring around the neck of the filter should not need replacing. It's usually hard to remove.

Posted: Wed May 14, 2008 8:32 pm Post subject:

I'd do a home coolant flush.

That was one thing I did when I first bought my GTP besides oil change, fuel filter, pvc, air filter, brake fluid flush with brake job, change trans fluid and filter.
_________________
2000 PONTIAC GRAND PRIX GTP
VS|TOGâ€™s|ZZP II IC|ZZP Stg II TB|Stg 4 Gen III|2.8 MPS

Posted: Sun May 18, 2008 1:58 pm Post subject:

I prefer to have a shop do the coolant flush. It's cleaner and I don't have to mess with recycling the old fluid. I'm not a fan of just flushing it down the storm drain.

Posted: Sun May 18, 2008 2:05 pm Post subject:

Posted: Sun May 18, 2008 4:08 pm Post subject:

I actually found the schrader valve earlier today, under a black cap on the passenger side, right behind the belt, so I'm good to go on that...

However, now I need to locate the PCV Valve, I believe it is under the MAP sensor on the 3800's but that is not the case, upon my investigation, on the 3100... Perhaps what I thought was the MAP sensor isn't, or I didn't look deep enough... Any ideas?

Perhaps I should post pictures for future reference if anyone else with a 3100 comes looking for help...

Posted: Sun May 18, 2008 4:13 pm Post subject:

Thought the PCV valve on a 3100 is rite on top of the motor.....the elbow like thing. Idk like i said its been a while since i had that Lumina.

Posted: Sun May 18, 2008 4:48 pm Post subject:

FOR THE 3100

Fuel Schrader Valve:

PCV Valve:

Posted: Sun May 18, 2008 6:25 pm Post subject:

Ahhhh yes....all that looks familiar. Overall a decent, reliable motor.....not the quickest motor by any means, but you cant complain about the decent gas mileage you get w/ those.

Posted: Sun May 18, 2008 6:29 pm Post subject:

I think I averaged 28mpg last week.. Hopefully after the tune up and possibly a CAI install w/ a K&N cone filter, I can get that number up a little higher...

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