Regular Maintenance?
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So just go out and put a high quality Dexron III ATF like Redline, Mobil 1, or Amsoil and forget about it for a long long time
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Here's a place where you can download a .pdf copy of your owner's manual. They're great for maintenance intervals, capacities, and materials.
Good luck and have fun!
The drain and fill process is easy:
1) Jack up car and place on jackstands or drive the front end up onto ramps. Its best to do this with the car level, so if possible jack up all 4 corners and place on jackstands- not a requirement though.
2) On passenger side of trans just forward of the crossmember and near the bottom of the trans you can locate the drain plug. Its a flush-mount "bung" with a square hole in it.
3) Use a 3/8" ratchet with an extension to loosen the plug and drain the fluid.
4) Reinstall the drain plug (do not overtighten - torque spec = 20 ft-lb)
5) Locate the fill plug about 1/3 of the way up on the driver's side of the trans (it'll be the same kind of "bung" as the drain with an orange DEX-III placard near it).
6) Loosen and remove the fill plug with the same 3/8" ratchet and extension.
7) Using a hand-held fluid pump (these are great and can be had for around $5 at your local autoparts store) fill the trans thru the fill hole until it begins to overflow (when full and with the car level the fluid should just reach the bottom of the fill hole). It should take close to 4 quarts of fluid.
8) Reinstall the fill plug and lower the car.
9) You're done! Have a beer.
fuel filter is supposed to be changed every 30,000 miles
PCV i would also change due to its low cost and ease of instillation.
GM's schedueled maintance suggests changing the dif fluid every 7,500 miles( now this does seem a bit extreme, but GM said it for a reason i suppose.)
as far as transmission fluid goes with the T56, i would just check it and if it looks bad, change it, but more importantly make sure it is at its proper level.
another item is the serp belt. GM suggests changing this at 60k. this is also a good idea and if u can source a gator-back belt i would go with that.
any more questions?



