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  1. Fuel pump going bad?

    As MelsRegal said, check the fuel pressure and while you are at it, check to make sure the fuel pressure regulator is operating properly and has not ruptured it's internal diaphragm.
  2. Blend Door Actuator

  3. I have a 1995 Buick Century w/ Powered seats that have since quit on me.

    Welcome to the forum! Sorry to hear about the seat. A couple of things you will want/need to do. One, visit GM Parts Online - Buy OEM GM Parts direct and save up to 40% and put your vehicle information in. It will show you diagrams of how parts go together and part numbers. Very helpful...
  4. Running on E10 (10% ethanol)

    Yes. I put many tens of thousands of miles on a 1976 Buick Electra with a 350 V8 using E10 gas without any problems.
  5. Leaking but from where

    If it is first thing in the morning, I would think it could be condensation running off the car.
  6. Starting Trouble

    Thank you for letting us know!
  7. Ac Clutch Not Engaging 2000 Buick Century

    Try jumping the low pressure switch that is installed on the accumulator. Unplug the connector and stick a paperclip or a jumper wire into the connector. If that does not work then you'll need to see if the compressor is getting voltage. If it is, then check the air gap on the clutch. As the...
  8. 98 Buick century

    OK. If you have an android device, the combination I am going to detail is extremely powerful and quite inexpensive. It uses a Bluetooth OBDII dongle and the Torque Pro app. Total cost is under $25.00. Here goes: https://www.amazon.com/gp/product/B011NSX27A/?tag=elightbars-20 You can get...
  9. 98 Buick century

    Well, you need to get it looked at and repaired ASAP or you'll be looking at adding a failed catalytic converter to the repair job. Flashing MIL Light means that unburned fuel is being introduced into the exhaust system which will result in catalytic converter failure if it continues. So, are...
  10. 98 Buick century

    Welcome to the Forum! Yes, there are a few things that can be considered, but you first need to get your hands on a decent OBDII code reader/scanner and see what diagnostic codes are present. Also, if the code reader/live data scanner is a decent on, you should be able to monitor several...
  11. 2005 Buick Century 3.1 L V6 Intake Manifold Gasket Type

    The problem with running the old style green coolant in a GM vehicle that specifies Dex-Cool is that the seals, gaskets and metals in the engine that come into contact with the coolant can be damaged by the inorganic salts that are used in the green coolant. By damaged I mean metal surfaces can...
  12. 2005 Buick Century 3.1 L V6 Intake Manifold Gasket Type

    Go with the FelPro gasket set, Part Number MIK98003T, and don't look back. Secondly, get a new style radiator cap (GM Part Number 25700158/ACDelco RC96 or Gates 31523) which corrects a minor air leak problem. Third, stick with DEX-Cool, and do not use the green antifreeze. Various engine...
  13. 97 transmission issue

    What OBD II codes are present?
  14. How To Change Motor Mounts

    2003 Buick Century came with the 3.1 L V6 engine. Mounting should be similar.
  15. broken hose (vacuum hose?from top of manifold down side of windshield washer reservoir and from there i have no idea where it goes. need a part name

    Attached is the first nylon vacuum line I was initially referring to. This is how it's done on some 99 Buick Centuries and I am hoping it is the same as the 97 Century. Taken from 1999 Buick Century Custom 4DR A/C CONTROL SYSTEM- VACUUM) Good Luck!
  16. broken hose (vacuum hose?from top of manifold down side of windshield washer reservoir and from there i have no idea where it goes. need a part name

    Is your HVAC output coming out from all of the ducts? If yes, then that vacuum hose you speak of originates at the intake manifold behind the alternator, and then it curves around and goes by the windshield washer solvent reservoir, and then it disappears into the firewall and connects to the...
  17. 2001 Buck Century No Start/Light for gear selector and odometer out

    Look for broken wires (or ones that have been chewed on by rodents) at the Park-Neutral-Park switch on top of the transmission. Mice chewed through a ground wire right at the back of the connector requiring me to splice in some wire and soldering a new Delphi terminal to fit into the connector.
  18. ECT sensor cracked hole

    I am not really sure what happened. However, can you take and post a picture of the hole and the break? My first thought is that you tried to remove something else.
  19. A Look into the GM 3.1 engine

    RydorDi, as promised here are two pictures, one for each side. You can see the orange RTV in the pictures. You should see something similar.
  20. A Look into the GM 3.1 engine

    RydorDi, Welcome to the Forum! Probably the easiest way to tell if the work has been done is to look at the passenger side of the engine behind the water pump and under the valve cover and look for "fresh looking" RTV sealant. It might be orange, clear, blue or black. This is where the lower...