Question about 1999 Buick Century

1 Answer

My 1999 Buick Century Custom began to shake when i turned it on, it seemed to stop or i didnt notice it as much when I picked up speed, but when i slow to take corners or back up it shakes. The service engine light came on soon car is my life, HELP!

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Buick Master
  • 5,763 Answers

Okay, this sounds like its misfiring, the engine light is on because the computer sees a problem, if you have the computer scanned it will tell you where the problem is, for example it will give a code and say cylinder 2 misfire.autozone will scan for free, if its a misfire i would start with a tune up , spark plugs ,sparkplug wires and air and fuel as needed, then see how it drives from there, the light can be cleared at autozone also, if it still picks up a misfire then depending on the cylinder you may have a bad coil pack also, there are three packs one controls two cylinders so depending on the cyliner misfiring thats the coil to replace, they should be labeled but if not just follow the wire to coil from cylinder, they are as follows, rear cylinders from left to right are cylinders 135 the front 246, hope this helps.

Posted on Aug 29, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

WWhy does my 2001 Buick century custom shake when I'm going down the road and I depress accelerator , i have replaced both motor mounts , no play in CV u joint

in what speed does it? if is in all speed that means something on drive train such as transmission or engine if does on certain speed can be tires or steering components

Apr 02, 2015 | Buick Century Cars & Trucks

1 Answer

I drive a 2001 Buick century custom when i

Do a test with tranny in drive instead of OD/over-drive, does the problem go away? If so I think it is an OD issue.
Check motor mounts and suspension. In the past, I've seen bad shocks cause a noticeable vibration at a certain speed. Below or above that certain speed, no vibration.

May 14, 2017 | Cars & Trucks

1 Answer

Heater fan stopped working. Is there a fuse 1999 Buick Century

Actually there are 2 fuses. One is for the lower speeds and one is for High speed. Might be a relay, too. Check the owner's manual for the location. I believe the high speed one is under the rear seat.

Dec 01, 2009 | 1999 Buick Century

Not finding what you are looking for?
1999 Buick Century Logo

460 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts


Level 3 Expert

76691 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8531 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides