Question about 1993 Buick Century

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I can't remove radiator cap on radiator on 1993 Buick Century.

I turn the cap a notch and I can't remove it by pulling up on it. There seems to be a metal rod attached into the tube. How do I remove it because I need to put some stop leak in the radiator, due to a small leak.
How do I do this?

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Make shore you push down on the radiator cap before turning it antclockwise also very important do not do it when the car is hot let the car cool down and then do it,hope this helps..

Posted on Jan 21, 2009

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Here is the procedure:-

  1. Remove setscrew from side of cylinder block.

  2. Remove oil pipe attaching bolts.

  3. Remove oil pump and strainer.

  1. Remove timing gear cover to case attaching bolts.

  2. Remove timing gear cover and gasket.


  1. Remove oil slinger and washers from crankshaft snout.
Using puller set 49 0839 425C or equivalent, remove crankshaft timing gear, Fig. 3.

  1. Position a clean rag between camshaft and idler gears, then remove cam gear lock bolt and washers.

  2. Using puller set 49 0839 425C or equivalent, remove cam gear from camshaft, Fig. 3.

  3. Remove idler gear to spindle retaining nuts and washers, then remove idler gear and spindle assemblies.

  4. Remove injection pump drive gear.

  5. Remove timing gear case to cylinder block attaching bolts, then the timing case.


  1. Remove tappets from cylinder block.

  2. Remove camshaft thrust plate to cylinder block retaining bolts and washers, then pull camshaft from block.


  1. Remove connecting rod bearing cap retaining nuts and bolts, then separate bearing cap from connecting rod.

  2. Using the wooden handle end of a hammer, push the piston and connecting rod assembly outward until piston rings clear cylinder bore. Remove piston and connecting rod assembly through top of cylinder block.

  3. To separate piston from connecting rod, remove piston pin retaining clips, then press pin from piston using a suitable driver.


  1. Remove rear oil seal cap retaining bolts, then the cap and seal.

  2. Remove main bearing cap to cylinder block retaining bolts, then the main bearing caps and thrust washers.

  3. Lift crankshaft from cylinder block.

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1 Answer

93 buick. Century blow back tank boiling

If you are talking about the coolant over flow??? You may have a bad radiator cap, maybe low on coolant, maybe thermostat. You haven't provided a lot of details here so it's hard to say for sure.

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How to remove door locks

Pull off the inside of the door by removing the armrest bolts. Pull any electrics if they are in the way or any window cranks. Pull the panel off. Undo wire harnesses. reach inside where the handle is and find a sheet metal clip pull it sideways with a pair of pliers. undo the metal rod clips by turning a nylon fastener to the side and unsnapping the rod. put in the new tumbler and slide the sheet metal clip in again. snap on the rod and twist the nylon clip back. put the panel and armrest back on. repeat for other door.

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I want to flush my radiator in a 1997 Buick century



You could remove bottom hose & keep
putting water in the filler cap

Lot of work

Just drain & refill

If you have problems replace the radiator

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The front seat is stock how can i move it forward?

You see that shiny rod running from one side to the other? That rod is attached to pins that lock into the notches on the seat tracks. When you pull the seat lever, the rod is supposed to retract the pins out of the notches on both seat runners so the seat can slide on the runners or tracks. Reach under and pull the pins out of the notches on both tracks to slide the seat forward. Those rods get stretched or loose or fall out of place. Sometimes a pair of pliers can be used to get the rod back into place and fixed, so it works off the seat lever.

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It is the inner and out connection tube for the tie rod ends.

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How do I remove the headrest from the car seat?

I have not done an 850 so this is my best guess based on doing other Volvos.......
If the back of the seat is soft, you should be able to press in on the fabric far enough to feel the two metal rods that support the headrest. The rods stick through two plastic guides. There is a notch in one or both of the metal rods near the bottom. That notch catches on a catch in the lower plastic guide. You should feel a slight bump in the lower plastic guide that is actually a release.
Have your helper pull up on the headrest while you press both those releases at the same time.
If that does not work, you will have to detach the cover from the seat back and pull it up to expose the headrest support system. That can be a real pain, but I presume that you intend to dismantle the seat anyway.

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2 Answers

How do i drain the old coolant from radiator. does the drain plug comes out or just turns to one direction. thanks

hi,, yeah you just turn it out, right to tighten, left to slacken, remember to remove your cap and leave a hose of running water flowing through the radiator to help wash out all the old stuff.

PS.. IF cant find the radiator drain plug, remove the button radiator hose..

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1 Answer

Trying to locate the temperature coolant sensor on a 2001buick century

The sensor is on the passnger side of the radiator below the radiator cap. It is black and square and has a single plug at the bottom. It is held onto the radiator by a metal retaining clip. Remove the clip and the sensor pulls out of the radiator. Disconnect the wire by pulling carefully on the plastic lock and pull on the plug. Fluid will leak out to level of sensor. Drain or place catch basin below sensor plug to catch radiator fluid. Sensor can be purchased through a dealer for around $70 US, or Auto-Zone for under $40 US. Your choice.

Hope this helps

Positive Feedback ALWAYS Appreciated :)

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1993 Buick Century Turn signals don't work.

sihelp megnals do not work car will not start with key i jumped starter with screwdriver started right up

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