Question about 1998 Chevrolet Malibu

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Replace thermostat on 1998 malibu - 1998 Chevrolet Malibu

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Follow top large hose from radiator to engine block the thermostat is inside the metal case remove the 2 bolts and lift away remove old thermostat clean old gasket off with razor scraper being carefull not to get anything in the block replace thermostat place new gasket on then put metal case back on and secure with the 2 bolts top off fluids as needed.

Posted on Feb 05, 2013

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1 Answer

Overheating car


You may need a scanner to proceed - - is the cooling fan coming on at 230 degrees and does it cool down the engine to normal (200 degrees) ?

Jan 20, 2014 | 1998 Chevrolet Malibu

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98 Chevy Malibu won't start after replacing thermostat?


replace thermostat did bleed coolant system check coolant level.because if not engine could have overheated and blowed headgaskets warp or cracked the heads check engine compression.sound like engine got too hot.

Jan 08, 2013 | 1998 Chevrolet Malibu

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My 1998 chevrolet malibu 3.1 v6 replace hoses and still overheats and coolant check for leaks and no leaks.


When it is "overheating" feel the upper and lower hoses. If one hose is hot and one is a lot cooler than you have no flow through the radiator. Most likely cause for this is the thermostat.

The thermostat is located behind the housing that bolts to the drivers side of the intake manifold that the upper hose is attached to. It is not the easiest job in the world to replace but it can be done.

May 25, 2011 | 1998 Chevrolet Malibu

1 Answer

Thermostat housing leaking


Remove and replace gasket. You can also use silacone. If it is the housing itself u will have to replace the housing or fix with JB weld. Hope this helps.

Aug 12, 2010 | 1998 Chevrolet Malibu

1 Answer

My 2004 malibu does not blow hot air when in the heating position. the blower works and only blows cold air.thermostat seems fine.


What makes you think the thermostat is fine? First thing I would check is the level of your antifreeze to see if it's up to the correct level. If it is then thermostat is my next culprit and if it is in fact OK then it might be the water pump or plugged up heater core.

Sep 30, 2009 | 1998 Chevrolet Malibu

1 Answer

A picture of thermostat placement in a 1998 malibu


Follow your top radiator hose from radiator to engine. It connects to the thermostat housing.

Jul 11, 2009 | 1998 Chevrolet Malibu

1 Answer

I cann't find thermostat placement in 1998 malibu


If it has a 2.3 or 2.4 engine, follow lower rad hose, it will be on the lower part of engine near the water pump, behind the oil pan

Jul 11, 2009 | 1998 Chevrolet Malibu

3 Answers

Water pump and thermostat needs replacing on my 98 malibu, $1000?


water pump is no big deal ,thermostat that a bigger job there not mush room to work but why the timming chain were i work the owner got a taxi fleet all maliby from 200 to 2003 i never say in my mechanical career or needed to change a timing chain on a malibe those years some of malibu has close to 600,000km change a lot of intake gasket but timing chain never please tell why the shop whant to change the timing chain do you now the shop good thanks pierre

Jan 10, 2009 | 1998 Chevrolet Malibu

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