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1990 buick century thermostat replacement 3300 v-6

Instructions on replacing a thermostat on a 1990 buick century. The engine is a v-6, 3300.

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Posted on Jan 02, 2017

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SOURCE: Replace thermostat on 1990 cutlass ciera

the easy way to find this is to fallow your bottom raditor hose to the engine where it attaches is called the thermostat housing remove the hose and remove the four bolts then take out the thermostat replace it and re install don't for get your antifreez you will need to replace it do to the loss when you remove the hose

Posted on Dec 05, 2008

  • 367 Answers

SOURCE: thermostat

Usually the replacement thermostat.

Some sockets in the rights size to remove the thermostat from the car should be on one of the big hoses going into the engine. Some come with gaskets some don't need them. You usually get one with the thermostat when you purchase it from the store. Usually a very cheap part. 15 -20 dollars max.

Posted on Jan 19, 2009

  • 2984 Answers

SOURCE: flasher out on buick and cannot find location to replace it

Open access panel directly under steering column, pull off flasher unit (metallic cylinder) take to auto parts store (no more than 10 bucks) , put on new one, drive safe.

Good Luck and please don't forget to rate!

Posted on Mar 16, 2009

  • 721 Answers

SOURCE: Change Engine Air Filter in 1999 Buick Century

Well you didn't say what engine is in it so,I'll wing it. Assuming it's a v6, the airbox is located in the front,probably driver side. Remove the 4 or 5 wing nuts or Phillips head screws. Gently but firmly lift the top housing & slide the old filter out. Put the new one in,making sure it's in the same way as the old one came out. It can't go in upside down anyway but I'm being specific. Re-install the housing & done!!

Posted on Jun 21, 2009

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SOURCE: How to remove/replace spark plug wire routing clip

Typically, spark wires are encased in a flexible plastic tube which is secured in usually 2 places with special clips. The tubing material gets brittle over time and cracks /breaks easily so patience and being careful are the key. After you remove the tube from its mounting points, you will notice that the tube has a split over its entire length. Carefully spread the split open at on end then pull (one wire at a time through the split. then reverse the process with the new wires..... unfortunately this is even more difficult and requires even more patience... good luck....

Posted on Oct 17, 2009

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1 Answer

1990 buick century starts then dies

Have you checked base fuel pressure with a gauge ?
Have you figured out if you are loosing spark or fuel when the engine dies ?

Apr 17, 2013 | 1990 Buick Century

1 Answer

Removal of themstat in 1990 buick century

Have to remove the least amount of things that
is necessary to get at the thermostat

That is a pretty common problem even back in1990
& today forget it

Jan 29, 2013 | 1990 Buick Century

1 Answer

What are some systoms when the thermostat is going bad in a 1990 buick century

engine temp is higher than normal, temp will increase when engine is under load usually climbing an incline, it may take a considerable distance of level driving to reduce temp

May 30, 2012 | 1990 Buick Century

2 Answers

Where is the thermostat located

2000 Buick Century 3.1L SFI OHV 6cyl


Fig. Unfasten the water outlet attaching bolts, then remove the outlet-3.1L engine shown


ig. View of the thermostat in its seat in the intake manifold-3.1L engine shown


Fig. Remove the thermostat from the housing.

Hope this helps (remember to rate and comment this).

Oct 01, 2010 | 2000 Buick Century

1 Answer

Thermostat location on 1990 buick century

Find the thermostat on all vehicles like this:

The engine end of the upper radiator hose goes over a pipe stub, or nipple, and then has a hose clamp tightened around it to hold it on that part. That part is a housing, bolted to the engine, and the thermostat is under that housing.

Jun 27, 2010 | 1990 Buick Century

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Looking for pvc valve on3.3/6cly 1990 buick

The PVC Valve is located on the valve cover of your engine.

Jun 16, 2010 | 1990 Buick Century

1 Answer

1990 buick century 3.3 engine cooling fan wont come on.

The fan switch is under the alternator. The turn on temp is 238. Have you checked power at the relay? If you ground the wire at the the temp switch does the fan come on?

Jul 04, 2009 | 1990 Buick Century

1 Answer


Usually the replacement thermostat.

Some sockets in the rights size to remove the thermostat from the car should be on one of the big hoses going into the engine. Some come with gaskets some don't need them. You usually get one with the thermostat when you purchase it from the store. Usually a very cheap part. 15 -20 dollars max.

Jan 19, 2009 | 1990 Buick LeSabre

1 Answer

Getting at the thermostat housing bolts to change thermostat

Most thermostats are located in or near the intake manifold area. Locate your upper radiator hose, then from the hose/radiator connection, follow the hose backwards to where it connects to. The goose neck or mating part, has to be removed. The thermostat is usually located inside the port. You may have to remove other covers and or parts to gain access to the goose neck assembly. You also have to let the car cool and drain the coolant before performing this task.

Dec 12, 2008 | 1990 Buick Century

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