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1-20 of 25 Results
  1. Newbie Zone
    Howdy, everyone! I've been an avid 3800 fan for a little over a decade, having loved and lost a 1997 Park Avenue Ultra and now owning a higher mileage 1996 Riviera (Supercharged). I've been weighing what should be most important for me moving forward with customizing this vehicle. Obviously...
  2. Newbie Zone
    Mods List for Lesabre guys cause w-bodys are over rated. I don't drag Just Road Courses If you have done any other mods please post them as well as how they worked Handling: 1. Charger SRT 20" wheels fit perfectly with no issues even after lowering approx 1.5" (no more burnout cause sticky...
  3. DTC's, Problems & Troubleshooting
    I bought a beater 1991 Buick Regal with a 3800 Tuned Port Injection V6 and it's doing what I said in the title - shudders and shakes violently under load when going up hills in 3rd and 4th gear. You can feel it the most at high speed, above 45-50mph, it's more subtle below that in 3rd gear...
  4. 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...
  5. 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...
  6. 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...
  7. Member Classifieds
    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...
  8. 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...
  9. 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...
  10. Superchargers
    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...
  11. Brakes
    Do they make high quality big brake kits for a 1995 Buick Park Avenue?
  12. Rear Wheel Drive
    Would it be possible to do a RWD conversion on a 1995 Buick Park Avenue?
  13. Turbos
    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
  14. 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...
  15. Intake
    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
  16. 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...
  17. 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...
  18. Cams/Heads/Valvetrain
    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...
  19. Wanted
    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...
  20. 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...
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