Question about 2002 Buick Century

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Low coolant light stays lit when coolant isn't low. Intake manifold gasket was just changed and coolant light lit up on startup. Coolant level is topped up and no leaks.

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Reset the computer, if no change, replace the coolant sensor, but after reset it should work

Posted on Mar 15, 2010

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Posted on Jan 02, 2017

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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

What does it mean if there is oil in my coolant reservoir


oil too low!!!!!!!!!!!!!!!!!!!!!!!!!!! have some change your oil & filter immediately !!! drain radiator & coolant reservoir , refill w/ fresh 50/50 coolant , white smoke is not exactly a good thing ! it could mean coolant is mixing w/ oil , because of a possible leak from a bad gasket either from intake manifold or head gasket !!! water pump would not cause this ! I would bet on a gasket leak given the age of the car . 2000 ! 13 years old, how was it maintained, intake gaskets are cheaply made, head gaskets are made well ! so, my bet, goes to the intake manifold gasket !!!!!!good luck kristle !

Mar 30, 2013 | 2000 Dodge Intrepid

2 Answers

I have a 02 Chevy tahoe....it sounds like coolant rushing throughout the engine while sitting at an idle and about every 2 or 3 days I gotta add coolant its not much also the low coolant light comes on...


I would perform a coolant pressure test because these engines are known for leaking intake manifold gaskets.Check and see if your oil is starting to turn a creamy tan color.

Jan 24, 2012 | 2002 Chevrolet Tahoe

1 Answer

Have a 2002 impala low coolant light but has milky oil still runs what to do


with milky oil stop driving it sounds like intake manifold gasket will need replaced and oil and filter change continued driving like this will destroy lower end of the engine

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/joseph_f4ed739f62995525

Mar 08, 2011 | Chevrolet Impala Cars & Trucks

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My Chevy Venture 1999 when I drived the temperature was normally, but when I stay the temperature was hot. I changed the termosthator but the problem is continually.


Check the coolant reservoir and the radiator for proper coolant level. If low you probably have a leaking intake gasket or possibly a head gasket leak. The intake leak will be visible on either end of the intake manifold, located at the very top portion of the engine. The head gasket usually shows up at the rear head, nearest the belt. You could have a water pump leaking and this would show coolant on the ground under the right front of the engine, more so when the engine is running. They are very common for all 3 problems.

Mar 02, 2011 | 1999 Chevrolet Venture

1 Answer

Engine overheats


Uh oh...You may have the Ventures infamous head gasket/intake manifold gasket failure. First check your coolant level,not just in the bottle but in the radiator itself. Change your radiator cap. Make sure the rubber hose leading from the overflow tank to the radiator neck is not kinked and allows water to flow in both directions, not just into the bottle under pressure. Dex-Cool is very sensitive to exposure to air and tends to clog the system if air is allowed in. If you are low in coolant, flush out the system and from my experience I would change over to good old green coolant and change it every 30-40K. If your coolant level isn't low you may have a stuck thermostat (located sideways under the throttle body) or head gasket problem. A cheap check for a head gasket leak thats still small is to open up the radiator on the engine while its cold and start it up. A bad head gasket will send exhaust into the water jacket which will force the water to bubble up the radiator neck before the engine is even warm. A bad intake manifold will burn antifreeze out your exhaust and drain your radiator without any sign of a leak.

May 27, 2010 | 2001 Chevrolet Venture

2 Answers

Why does my low coolant light stays on


THERE IS A PROBLEM WITH THESE SENSORS, IF THE COOLANT ISN'T LOW REPLACE THE SENSOR.

Jun 24, 2009 | 2002 Pontiac Grand Prix

2 Answers

98 Pontiac Grand Prix Overheating


YOU NEED TO REPLACE THE UPPER INTAKE MANIFOLD. ALSO, YOU WILL NEED TO REPLACE THE LOWER INTAKE MANIFOLD GASKETS. THIS IS A MANUFACTURING FLAW. THE PLASTIC INTAKE CRACKS CAUSING AN INTERNAL COOLANT LEAK. YOU CAN RESEARCH THIS ON LINE.

Apr 22, 2009 | 1998 Pontiac Grand Prix

1 Answer

Pontiac grand am 2000


You answered your own question in your question. The clue is the add coolant light. My guess is that it is low on coolant, as to why it is low there is probably a leak somewhere. GM had problems with the 3.8 upper intake plenums on the series 2 engines, and the 3.1 and 3.4 engines had problems with the lower intake manifold gaskets. If you still have the pink antifreeze in it you should take it back to the dealer as GM just lost a class action lawsuit about their Dexcool eating up intake gaskets. It is possible that if that is your problem GM will pay at least a portion of the repair costs. Hope this helps.

Jan 16, 2009 | 1999 Pontiac Grand Am GT

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