Buick Cars & Trucks - Page 7 - Recent Questions, Troubleshooting & Support

Click the link and also click the images tab. https://www.google.com/search?q=2005+Buick+Century.+starter+Wiring+diagram ..

It sounds like an antitheft / immobilizer issue. https://www.google.com/search?q=mobile+auto+electrician+near+me ..

Question edited for clarity and correct spelling of the maker. Question moved to model category. Nothing here leads me to think it has one! A/C is controlled by the BCM. https://www.google.com/search?q=2006+Buick+Lacrosse+remove+the+A%2FC+control+module ..

Question edited for clarity and add maker. Question moved to model category.

2006 Buick Lucerne Owner Manual M - Dealer E Process

dealereprocess.org https://cdn.dealereprocess.org > servicemanuals 2006 Buick Lucerne Owner Manual M ... Keep this manual in the vehicle, so it will be there if ... A French language copy of this manual can be obtained. 416 pages

2006 Buick Lucerne - Owner's Manual - 416 Pages - PDF

OwnersManuals2.com https://ownersmanuals2.com > buick > lucerne-2006-o... 2006 Buick Lucerne - Owner's Manual. Posted on 10 Apr, 2020. Model: 2006 Buick Lucerne Pages: 416. File size: 3 MB. Download from Buick.com. Online Viewer.

If you believe that the speedometer in your 1995 Buick Century Special 2.2L is inaccurate, there could be a few potential reasons for this issue. Here are some steps you can take to diagnose and potentially resolve the problem:

1. Check Tire Size: Incorrect tire size can affect the accuracy of your speedometer. Make sure that the tires on your car are the correct size as specified in the owner's manual. If you've recently changed the tires, the new size might not match the original specifications.
2. Inspect Speed Sensor: The speedometer gets its information from a speed sensor, usually located on the transmission. If this sensor is faulty or damaged, it could lead to inaccurate speed readings. Inspect the sensor for any visible damage or wiring issues.
3. Test Speedometer Calibration: There's a possibility that the speedometer itself is out of calibration. You might need a professional mechanic or an automotive specialist with the right tools to recalibrate the speedometer to ensure it's accurate.
4. Check for Faulty Wiring: Wiring issues can disrupt the signals between the speed sensor and the speedometer. Inspect the wiring for any signs of damage, corrosion, or loose connections.
5. Scan for Error Codes: Modern vehicles, even those from the 1990s, often have onboard diagnostic systems that can store error codes related to various components, including the speed sensor. Use an OBD-II scanner or visit a mechanic to check if any error codes are present.
6. Mechanical Issues: Mechanical problems in the transmission or drivetrain can affect the accuracy of the speedometer. If there are issues with these components, they might need to be inspected and repaired.
7. Consult a Professional: If you're not comfortable diagnosing or repairing the issue yourself, it's advisable to take your car to a qualified mechanic or automotive technician. They have the experience and tools to properly diagnose and fix the problem.

Remember that an inaccurate speedometer isn't just an inconvenience; it could also lead to legal and safety issues if you're not aware of your actual speed while driving. It's important to address this issue promptly.

You mentioned that you welded the BCM was it out of the car and unplugged also make sure that relay you replaced is the correct one make sure plugged in backwards.

20 inch pounds will be plenty

Question edited for clarity. Question moved from Spanish car company 'Seat', pronounced 'see-at'. That sounds like the door switches, or possibly a break in the harness that goes from the door to the door frame. They always fail on the drivers door because of the amount of times they open and close. Or it may be a communications issue. The only way to diagnose is by an auto electrician connecting a professional grade scan tool computer. There may also be DTC codes relating to the communication aspect of the network modules and they way they talk to each other. https://www.google.com/search?q=auto+electrician+near+me ..

YOUR RELAY OR RELAYS COULD BE FAULTY.

Question edited for clarity. Question moved to model category. Fuse 1 = Trunk, Door Locks

Buick Terraza (2004-2008) fuses and relays

Fuse Box Diagrams https://fuse-box.info > buick > buick-terraza-2004-20... Fuse Box Location. It is located on the passenger's side of the instrument panel, behind the cover. The location of the fuses in the passenger compartment: ... ..

My passenger side door would not close. The mechanic reprogrammed it with the instructions in the handbook. So far it is working OK after one month. Good luck

limited info generic answer which pressure switch high or low ----this video will give you an idea of where to look

calif car is not same as Federal, , buy the real Buick service manual used off ebay.i bet EGR will fail.not done correctly and now engine pings like a monster,buy the manual first.

something has it stopped up or its off track

This SHOULD be how it's done, but not so on the 90's Park Aves.
With this 3.8 L V-6, you have to remove the motor mount on the side of the engine--and without the proper tools it's about a $290 job for the dealer.

This is a very common problem on GM vehicles. The security system is notoriously known to fail. Basically when you insert your key, the system checks for a certain signal. If the system cannot get the correct signal from the key, it assumes the key is incorrect or you are attempting to hotwire it. The system then goes into SECURITY lockout mode. (prevents vehicle theft) This will either turn off the starter, or the fuel injectors. This has been happening with GM's for a very long time. There is a company called New Rockies that sells a bypass for this online. Works great.

burns Gasoline (petrol) USA car, are all in side the fuel tank on the fuel pump rack by EPA laws USA>? a fact of life. go to GM Buick oem parts pages, online google them. see all parts on the car. see there is no fule filters outside the tank. this law reduces fuel gas fumes. to the air we breath. or using only eyes, follow the gas line from fuel rail to take oops no filter there why 3, try to buy it,? oops not sold. see a trend.? LOL oops none just this. each pump says, it is here in the rack but not sold by itself. https://www.rockauto.com/en/catalog/buick,2006,terraza,3.9l+v6,1432557,fuel+&+air,fuel+pump+&+housing+assembly,10147 the pump also has bottom sock, to catch dead bugs etc. called strainer not a true 40micro filter, up top delphi has filter upgrade in the rack.

https://www.fixya.com/cars/t25447313-oil_pressure_gauge_in_80

80 is ok unless it says 80 when the engine isnt running,turn on ignition and check the oil pressure,it should read 0....

https://www.carcarekiosk.com/video/1999_Buick_Century_Custom_3.1L_V6/air_conditioner/recharge_freon