On the buick century which cylinder head is in the front of the engine? Left or right?

153624 is possibly the firing order but the numbering of the cylinders ? never seen one so i wouldnt know sorry their out engines here in europe only use 4 cylinders and the newer ones 3 cylinders try 143625 if the first firing order doesnt work ,i would expect no 1 to the front left but i just dont know i could work it out with head under the bonnet and follow the rockers working out the timing but offhand no idea

Get a hold of a repair manual for it, You can borrow them from a libarry,

6 and 8 cylinder:

THERE IS A METAL GASKET AT THE BOTTOM OF THE CYLINDER HEAD. MAKE SURE YOU REMOVE THE HEAD AND NOT JUST THE INTAKE MAINFOLD.

2001 Buick Century Firing Order:

V6, 3.1Liter: Firing Order: 123456
While Standing in Front of the Vehicle, the Engine is Transverse, Left to Right, Nearest the Firewall, The No. 1, Cylinder on the 3.1L is closet to the Firewall, on the Left, followed by Cylinder No. 3, then Cylinder No. 5.
Then Left to Right, the Front Cylinder Bank, nearest the Bumper starts with Cylinder No. 2 on the left, Cylinder No. 4 is Center Front, and finally, Cylinder 6 is Front Right.

V6, 3.8Liter: Firing Order: 165432
Cylinder Location:
While standing in front of the vehicle, the 'Back" Cylinder bank, nearest the Firewall, Left to Right: Cylinder No. 2, then No. 4, then No. 6. The Front Cylinder Bank, Nearest the Bumper, Cylinder Location, Left to Right, Start with No. 1, then Center Front, is No. 3, and finally, the right Front Cylinder, nearest the bumper is Cylinder No., 5.

do you mean firing order? google firing order for your engine. GM cylinders are numbered front to back and left to right. Sometimes the numbers are printed on the wires. number one cylinder is front left, number 2 is front right, etc--like lacing a shoe.

The 3100 and the 3400 are noted for the intake gasket going out. You can usually see it leaking at the left front and right rear of the intake as you sit in the car. Look along the slanted area of the intake manifold where it joins with the heads. If you are tight on money, the repair is generally around 5-700 dollars, buy Bars Leak Head repair. It will take two days to fix, however if you follow the directions to the letter, you will not have the problem again. I have repaired head gaskets that were literally leaking water that you could see and two years later it is still running. Remember to follow every step on the bottle to the letter or you have wasted your time. The only one you do not have to worry about is the step where it tells you to remove the plug at the cylinder that is leaking since you are not leaking at a cylinder.

Hope this helps

On the 2.5 4cyl. The temp. sensor is located on the
transmission side of the engine below the coolant outlet. The temp sending unit is in the head in front of
the coolant outlet. On the 3.3 v6 the temp sensor is on the right side of the engine below the alternator.
The temp sending unit is to the left of the sensor.
Hope this helps.

should be the 3rd on e up front on teh right side as you are looking at the engine. If its never had plugs and wires i woul do a tune up on it. Also the ignition coils are also know to go bad quiet often they should also be numbered.

check wire contacts in socket. If they are melted change the socket
It can be removed easily just unplug the wires.
I have replaced both front sockets on my 1999 Buick Century.
Hope this helps.
Ron