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Why does only one coolent fan work on my 2002 buick century 3.1

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Under normal load only one is needed the second one usually comes on when a/c is turned on [added heat load ]

Posted on May 19, 2017

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Posted on Jan 02, 2017

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I have 1 2002 buick centery the low coolent light was blinking red but its not low now its solid red and over heats on idel only


Not low in the recovery bottle or
coolant system, when you check that

That doesn't tell you much

You have to diagnose the overheating issues

Stop using it until resolved

Sep 02, 2013 | 2002 Buick Century

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2002 century, Hvac dash control module fan only works on high. Do I need to replace the module and how hard is it.


You may not have to. If the blower resistor is near the blower motor that should be tested first(cheaper part too). Sometimes they go and the result is a one speed or no speed fan.

Jun 16, 2013 | 2002 Buick Century

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Sounds like you need both the motor and the resistor.

Jun 12, 2013 | 2002 Buick Century

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1999buick century 3.1 my fans dont turn on unless i turn a/c on


fan relay in fuse box under hood is bad you can replace or find hot wire to fan wire it straight to the fuse box to a fuse that only works when key is on

Dec 22, 2012 | 1999 Buick Century

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ECT engine coolent tempature sensor in the water jacket frint of engine near top radiator hose

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1 Answer

When should the fluid lines be flushed?


Witch lines are you refuring to tranny or brakes The answer for bolth is you should realy never have to unless you have had some kind major problem with eighter of them The coolent system is different that should be flushed every 5 or 6 years

Nov 01, 2010 | 2002 Buick Century

2 Answers

I have a 2002 Buick Century. When I am idling, the cooling fan does not kick on when it is supposed to. When I turn the A/C or the defrost on, the fan will come on. Is this a sensor problem? Where is...


THE COOLING FAN DOES NOT COME ON UNTIL 220 DEGREES IT SHOULD COME ON WHEN THE A/C IS TURNED ON OR DEFROST ON IF YOU THINK THERE IS A PROBLEM HAVE A SCANNER PUT ON IT AND IT WILL SHOW THE TEMP THAT THE FAN COME ON

Oct 14, 2010 | 2002 Buick Century

1 Answer

1998 Buick Century Driver-side blows hot, passenger side cold


vent your vent port one your port may be block or you temperature sensor giving trouble

Jul 01, 2009 | 2002 Chevrolet TrailBlazer

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2002 buick century cooling fan sensor


hello
I am Welsea Zhang in China
In China, we always meet a problem from Buick car,the problem of fan sensor wire always burned while run 4-50000km, does America meet the same problem?
Waiting for your kind reply
my email is welsea2006@gmail.com
Many thanks and best regards
Welsea

Jun 29, 2009 | 2002 Buick LeSabre

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