3800Pro Forums banner


  1. Lesabre Related Question

    General Tech
    Need to know how much power a stock 4t60-e can handle I know their pretty weak but how weak. If I replace it with the HD will I have any problems (92 Lesabre). Would like to get lowering springs, or coilovers, but can't find any, so if anyone knows where to pick some up let me know. Any answers...
  2. Engine died, scan gave me 40 DTC codes!

    DTC's, Problems & Troubleshooting
    Hello everyone, I bought a 1999 Buick Park Avenue, naturally aspirated and, long story short, I replaced the upper plastic intake and gasket hoping that would help my rough idle and low power problem. Upon finishing the repair, and I had borrowed and DTC scanner from a friend and was setting...
  3. Rough Idle, low power

    DTC's, Problems & Troubleshooting
    I have a 1993 LeSabre Limited with a 3800 Series I. Recently I have been experiencing poor acceleration and an intermittent rough idle. I have replaced the following: Fuel Pump, Sending Unit, Trans Vacuum Modulator, Mass Airflow Sensor, Fuel Pressure Regulator, Intake Manifold Gaskets, Spark...
  4. 2001 Buick Park Avenue Ultra

    For Sale
    I have a 2001 Buick Park Avenue Ultra that I need to sell as it is taking up space and I will not be working on it in the near future. We purchased the car several years ago and loved the power it had and smooth ride. While driving on the highway one day it developed a tapping noise in the...
  5. '95 Buick issues

    PCM's & Tuning
    Hey all! I hopeone of you might be able to help. I am at my wits end here. My 95 has been slowly having the typical driveability issues and finally had a no start issue. Would crank, just no spark. To make this easier I will list all I have replaced: ICM, all coils, plugs and wires, crank...
  6. Misfiring Issue In My V6 3800

    DTC's, Problems & Troubleshooting
    First off I want to apologize if I have posted this in the wrong place as I'm new to the forums here, if it needs moved to a more appropriate place feel free to move it. Second, both "I'm sorry" and "thank you" for reading this entire post as it's a bit long and complicating! I am still a novice...
  7. How to add Eaton M90 to LN3

    Hi, I just bought a '90 Park Ave in very good condition, and I'm looking to add a supercharger to it. From perusing the Internet, it looks like the Eaton M90 supercharger is the most common one used, and I would like to fit it on my engine. I have the 3800 LN3, and I've read that it can be...
  8. Big Brake Kit

    Do they make high quality big brake kits for a 1995 Buick Park Avenue?
  9. RWD Conversion

    Rear Wheel Drive
    Would it be possible to do a RWD conversion on a 1995 Buick Park Avenue?
  10. Turbo Preparation

    I want to run a turbo, I understand that their are many modifications/upgrades that I must do before I install What is required to have upgraded before installing a turbo kit? I own a 1995 Buick Park Avenue N/A
  11. First Project Car

    General Tech
    I have purchased a 1995 Buick Park Avenue as my first project car and got a sweet deal, I paid $500 for the car, there is no rust on the car 100% rust free with flawless leather interior, carpet is a little dirty, been sitting in the shade behind a garage for 3 years, the only things this car...
  12. Dual Cold Air

    Would I have enough room to mount a dual cold air system in my 1995 Buick Park Avenue, I want to run them down towards the bottom behind the bumper, I do not want to break the bank, if I need to relocate things I will
  13. 01 Park Ave Ultra Misfire

    DTC's, Problems & Troubleshooting
    EDIT: Solved the problem. Got a bad spark plug. Put old plug back in that cylinder, car runs great ! Someone told me to do that on a diff. forum and I find it so UNBELIEVABLE that a spark plug (new) could be bad.. BUT... I did it for giggles and because it wouldn't cost me anything.. AND...
  14. Misfire 93 Regal Series I

    DTC's, Problems & Troubleshooting
    I have a misfire in my 1993 Regal Series I. The misfire is noticeable at start up but gets worse as the engine warms to operating temp or when the a/c is turned on. It has been this way since I got it. What I've done: -I have checked the coils both cold and warm and they are all within range...
  15. 3800 Balance Shaft - 91 Buick ParkAve

    Alright so this is the first time i've worked on a 3800 and i've been stumped with figuring out what all was wrong when it was set to rest in a friend's carport. So what happened was that her father in-law was driving the backroads and didn't see this good sized branch in the road, ran it over...
  16. Regal GS Engine Wiring Needed

    Hey Everybody, I have a 1998 Buick Regal GS, SC 3.8L. I need to locate the section of engine wiring That plugs into the main harness at the passenger front valve cover and goes to ICM, crank sensor, etc. I also need a section of the ABS harness from the ABS unit on the driver side apron...
  17. is it a 3.8 or a 3.0?

    Naturally Aspirated
    Hi I am new and stupis here and just spent more then one hour googling this question so I will ask here I am looking at buying a 1991 buick lesabre custom it is 4 door and when you look under the totaly awasome corvette style hood all it says on the engine is "fuel injection" it looks almost...
  18. 97 Regal GS Fuel Sending Unit Problem

    Newbie Zone
    Hey 3800 Fans, I have a little problem, my Regal's fuel gauge is almost always on empty (or sometimes on full). I've searched around a bit, and think that it's a problem with the fuel sending unit. Just want to double check before I either drop the tank or open the trunk access panel to replace...
  19. Swapping a 3.1L for a 3.8L

    FWD 3800 Engine Swaps
    I have an 03' buick century with the standard 3100 SFI engine. Seens how the 97-05 Buick centurys never came with with the 3800 (to my knowlage). I was wondering if its possible to swap my 3.1L with a 3.8L supercharged engine out of a 97-05 Buick regal. Being more or less the same body style...
  20. Nightmare!!!

    FWD 3800 Engine Swaps
    Ok here's the deal.I've got a 94 Buick 3800 I'm putting it into a 94 Olds Supreme Sl. The cut has a stock 3100. As far as wiring goes,what do I need to take from the Buick to make it work in the Olds? Thank's in advance