Question about 2000 Buick Century

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2000 buick century 3.1 how diffucult is it to change intake manifold gaskets for this car ?do the heads come off also?what would the cost be if i took it in for service?it seems to be leaking on the inside of the throttle body runnig down the tranny?all hoses are ok ?i am handy with cars

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  • Buick Master
  • 1,129 Answers

Is it leaking oil or antifreeze?
If it's oil at this location ,it is most likely the seal on the sealed (not used) distributor hole plug.(an easy fix).
If it's antifreeze it will most likely be the gasket between the head and intake.A little work but not bad.You will have to pull the valve covers and the intake but the heads stay on.

Posted on Feb 19, 2018

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6 Suggested Answers

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Posted on Jan 02, 2017

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Anonymous

  • 104 Answers

SOURCE: Leaking intake gasket.

What engine is in this? Is it the Supercharged 3800 or the non-Supercharged? The gaskets themselves are not terribly expensive (GM has revised Lower Intake Gaskets) but it would help to know if its the upper or lower intake gasket that is leaking.

Its not hard to replace either, but it is kind of labor intensive and that is where most of the cost will be. If you are confident in doing mechanical work you can do the job yourself easily enough. But I have seen repair quotes range from $300 - 600 depending on where its down and the labor rate for that area.

Posted on Dec 30, 2008

Anonymous

  • 379 Answers

SOURCE: 1999 Buick Century thermostat question.

patience , and a 13 MM wrench , you gotta get your arms in there deep , that lower bolt does not need to come all the way off , the thermostat housing has a slot at the bottom for easier access , loosen it about 3.4 of the way and you can get the housing out , experience says a premium thermostat will give you grief trying to reinstall , get a regular duty thermostat .reverse procedure.

Posted on Jan 02, 2009

Anonymous

  • 30 Answers

SOURCE: chev cavalier 2.2L IAT sensors location (non ECOtec)

Your IAT sensor is going to be on the intake tube.
the connector you should see is a oval two wire connector. (the normal for chevys) the other connector going to the intake tube is the mass air flow, these usually have 4-6 wires.
I can't help you with your govenor problem

Posted on Jan 27, 2009

SOURCE: Oil in the intake manifold air hose...

This is usually an indication of "blowback" caused by worn piston rings. How many miles on the engine? There is not a cheap solution if it is blowback.

Posted on Apr 28, 2009

Anonymous

  • 35 Answers

SOURCE: How to install intake manifold gaskets and their location.

go to autozone.com and register free then select make year ect.
select repair info (you have to register 4 this)
step by step and photos!!!!

Posted on May 31, 2009

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1 Answer

Changing head gaskets on 2000 buick century


I would make sure you are needing head gaskets. This engine is notorious for intake manifold failure that will allow coolant into the combustion chamber. If you are getting coolant into number 5 cylinder it is probably your intake manifold.

Feb 14, 2018 | Buick Cars & Trucks

1 Answer

Are there any known problems of head gaskets on 1997 buick century


Aaron, there has been a few problems with head gaskets, the bigger problem was with the intake manifold gaskets.
Check the attached links,
" I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

Intake Manifold Gaskets May Leak Coolant or Engine Oil Buick Century...

Coolant Leaking From Intake Gaskets GM 3 1L 3 4L

Thread how do tell if my headgasket or intake gasket is bad

1997 Buick Century Blown Head Gasket

Mar 13, 2016 | Buick Cars & Trucks

1 Answer

What are the symptoms of a bad intake gasket on a 1999 buick century?


Coolant leaks,When the intake manifold gasket cracks or blows out, coolant will leak out of the intake manifold. You may see puddles underneath your car or notice smoke or steam coming off of the engine and exhaust from the coolant dripping onto it and then burning.Overheating, If the intake manifold gasket fails and allows coolant to leak out into the engine, your car will begin to overheat. If your car frequently runs low on coolant or begins to overheat, check the intake manifold gasket.Running poorly, When the intake manifold gasket falters, it affects the way the motor handles its emission gases. The change in pressure can affect the vacuum in the intake as well as how smoothly your car runs. Mainly, it will idle roughly and may hesitate, cough or sputter.

Oct 27, 2013 | 1999 Buick Century

1 Answer

Fix head gasket


For leaking head gasket it has to be replaced. For head gasket leaking and other troubleshooting, there are help links provided. Its suggested to click the link below and go through the troubleshooting procedure to confirm the issue :-----Leaking head gaskets? http://schematicsdiagram.blogspot.com/2011/12/leaking-head-gaskets.html
-----------Water in engine oil? http://schematicsdiagram.blogspot.com/2011/12/water-in-engine-oil.html
-----------How to replace head gasket on car?http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-head-gasket-on-1994.html-------------How to know what is faulty Cylinder head or Head gasket?http://schematicsdiagram.blogspot.com/2011/12/how-to-know-what-is-faulty-cylinder.html
-------------- Can I just replace Head Gasket on 1991 Buick Century?http://schematicsdiagram.blogspot.com/2011/12/can-i-just-replace-head-gasket-on-1991.html Location of Head Gasket ?

http://schematicsdiagram.blogspot.com/2011/12/location-of-head-gasket-on-1994-grand.html

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HOW TO REPLACE A HEAD GASKET

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-head-gasket.html

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How to replace Exhaust Manifold?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-exhaust-manifold-on.html

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How to replace Intake Manifold?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-intake-manifold-on-acura.html

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How to replace Cylinder Head ?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cylinder-head-on-acura.html

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Is it Easy to replace head gasket?

http://schematicsdiagram.blogspot.com/2011/12/is-it-easy-to-replace-head-gasket-on.html

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Should I only replace head gaskets or complete head gasket assembly?http://schematicsdiagram.blogspot.com/2011/12/should-i-only-replace-head-gaskets-or.html


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This will help. Thanks.

Feb 27, 2012 | Renault Cars & Trucks

1 Answer

Why do my coolant keep running out


If you have a 3.1L or 3.4L V6 engine, I can guarantee you have either an intake manifold gasket leaking, internally, or the rear head gasket is leaking externally. They are extremely prone to coolant leaks for both. Get it checked out soon, the head gasket job can cost upwards of $1000.00. The intake leak is half of that if caught in time.

Apr 01, 2011 | 1999 Buick Century

2 Answers

Can i just replace the head gaskets or do i need to replace alll gaskets


when u replace the head gaskets u must also replace any parts gasket that u remove (valve covers, intake manifold etc.) to get the heads off, they sell what is called a "Valve Grind" gasket set that is what u need, it will have all the gaskets in it u need..

May 27, 2010 | 1991 Buick Century

2 Answers

If this car needs head gasket is it worth buying


A head gasket repair is major work, not worth it unless the car is really nice and dirt cheap. One side note is that if this car has the 3.1 or 3.4 liter engine they are notorious for intake gaskets leaking that will have alot of the same symptoms as a head gasket but its alot less work to repair. Good luck!

Apr 16, 2010 | 1997 Buick Century

1 Answer

Need to remove and replace the intake manifold gaskets on a 2000 Buick Regal GS, with 3.8 Ltr Supercharged engine. The engine is leaking coolant from below the intake manifold.


it is a great deal of work. The molded gaskets breakdown with time. You'll want to change the two 90 degree elbows as well - they are available from a dealer for a reasonable price. Also, the blower gasket is likely shrunk up and /or blown out. And you might as well replace the valve cover gaskets too as they leak oil as they breakdown with heat and time.

I did all of this on mine. Even as a professional, it took me a good 6 hours.

Sep 30, 2009 | 2000 Buick Regal

1 Answer

I have an external antifreeze leak at the head gasket ,driver side, kind of greenish stain, small drips, would this just need a new head gasket? oil looks fine. radiator is wet inside , but not full to...


This is a common problem on these motors. They leak between the intake manifold and the head, in the corners where they meet the block. You will need to replace the manifold gaskets and felpro makes a kit with everything in it.

May 05, 2009 | 2001 Buick Century

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