PontiacBonnevilleClub.com

i just had my transmission rebuilt. ive had it back aboot a month. it shifts smooth. but lately, ive noticed that when i "get on it" it boggs down or acts like it shifts into 3rd or 4th(OD). this only happens sometimes. other than that, the trans. feels fine. should i take it back to aamco? or could it be a computer problem? it didnt do this before my tranny when out. i dont know if it matters, but i had them put on a HD transmission cooler...

Take it back to Aamco, and see what they say.

Also make sure your car is up-to date on this list, something could be causing an issue.

Brand Suggestions are in the parentheses.

• 1987-2005 Bonneville / Buick 3800 Maintenance List
  
  Run Seafoam through gasoline and intake every 5,000 miles. One pint of Seafoam in a half tank of fuel is a good mix. The intake is optional, but recommended.
  
  Grease: Ball Joints, Tie Rods Every 8-10k (Green Grease recommended) http://www.greengrease.net/
  Air Filter Every 15k (Amsoil EaA, Purolator PureONE)
  PCV Valve Every 30k
  MAF Sensor Element Cleaning/TB Cleaning Every 50k http://www.pontiacbonnevilleclub.com/fo ... =48&t=1661
  Fuel Filter Every 15-25k (Purolator, AC Delco, WIX)
  Spark Plugs Every 30-50k (NGK TR55 or Autolite 605) (Never Bosch)
  Ignition Wires Every 30-50k (Napa Belden, AC Delco, Autolite Pro, NGK) (Never Taylor or Bosch)
  Oil & Filter Every 5-6k or Every 6 months (Mobil1 or Amsoil)(Mobil1, Purolator PureONE, Amsoil EaO or WIX) (Never Fram) http://www.pontiacbonnevilleclub.com/fo ... f=45&t=214
  *Conventional Oil Every 3k/3 months(Pennzoil with a WIX (Napa), Delco or Purolator filter)
  Transmission Flush Every 15-20k (Always make sure filter is changed when flushed)
  Cooling System Flush Every 25-50k or Annually (Peak or Prestone Green Coolant Only) (Never Dexcool)
  Oxygen Sensor Every 80-100k (30k for non-heated) (AC Delco or Denso) (Absolutely never Bosch) http://www.pontiacbonnevilleclub.com/fo ... f=48&t=794
  Accessory Belt Inspect every 15k, replace every 100k, or as needed
  Cabin Air Filter Inspect and Replace every 15k, or as needed in dusty conditions.
  
  *Special Considerations*
  All 3800s, LG3, LN3, L27, L36, L26, L67 & L32, especially important on vehicles factory installed with orange Havoline Dexcool Antifreeze/Coolant: http://www.dex-cool.net/
  Lower Intake Manifold Gasket Replacement, every 80-100k (ignorance of this can allow coolant to enter your engine oil, this happening can cause irreversible lower engine damage, requiring replacement of subject engine)
  
  Series II, Naturally Aspirated, RPO:L36:
  Upper Intake Manifold Plenum Replacement, Every 80-100k (ignorance of this can allow coolant to enter your intake manifold, possible damage to occur can be hydrolock, irreversible damage to emissions devices, misfires, etc. Most times, engine replacement is required if ignored long enough.) http://www.pontiacbonnevilleclub.com/fo ... =53&t=1061
  
  Series I, II, III RPO Code L67 & L32:
  Change Supercharger Oil; Every 30-50k. (Intense Racing or GM Dealer) viewtopic.php?f=56&t=1690
  Supercharger Belt (Series II and III only); Inspect Every 15k, Replace Every 100k or as needed.
  
  Rev. 3/9/09

Is Ammco generally ok to work with? What do they charge to rebuild a transmission normally?
Thanks,
Bill

Mine was almost $2400. I had a lot of hard parts that needed replacing, however. Their basic overhaul starts at about $1600, and is new seals, clutches, and gaskets. The more you need, the more it costs. My Aamco was very good to deal with, but we knew one of the techs that worked there, and he got us a good deal. Their warranty is good, though.

yeah, what he said. with the trans cooler install(which was 300 bucks by itself) my total for a rebuild was $2200.

how many times did you have to take it back too the shop after the rebuild ? im on number 3 it something wrong with my between 1 in 2 gear random hard shifts

I have not heard anything good come from Aamco.
When I needed my trans rebuilt, (2 years ago) I asked here and generally people said stay away from Aamco. I took my SSEi to a local Engine and transmission shop, and they did by rebuild for $1700 with a 1 year warranty. Last I heard, it is still going strong..

I've had 0 issues in the 3k that I've put on my new tranny. But, like I said, I know the guy that worked on it, so my case is a little different than most.