Question about 2003 Buick Rendezvous

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I have a 2003 buick rondezue, blower working but no heat coming out. water pump has been changed, and anti freeze is good. Is there a fuse for that?

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Is there hot coolant going into the hearter core ? What this video ! How to Fix Car with No Heat Easy

Posted on Dec 25, 2016

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3 Answers

How can I get my deforoster and heater to work


There are several possible causes. Check that you aren't low on anti freeze. If you added anti freeze recently, you want to add 50/50. Not 100% anti freeze. If that isn't it, it could be a bad thermostat. Several other things, but we will start there.

Jan 04, 2015 | Cars & Trucks

1 Answer

Not circulating


Hey Tyler,

Your posting does not indicate if you have a good clean mixture of antifreeze coolant in your heat & cool exchanger ( ie. radiator ), this valuable component of the vehicle coolant & heating system alway's need's a good supply of 50% water to 50% antifreeze which is under pressure and could hurt you or anyone standing too close to your vehice in question.

Purchase the anti-freeze in either full mixture (100%) or 50% water 50% anti-freeze just about anywhere out there with a vehicle repair isle.
Personally speaking I mix 50% water 50% anti-freeze since this is much cheaper than buying the already 50% water to 50% anti-freeze simply due to economic reasons.
After filling this radiator container, remember to alway's follow your vehicle manufacture's safety guidelines, remember there are many moving parts in the engine compartment that could hurt you or people standing around your vehicle while the engine is running.

Hope this helps!

Oct 22, 2013 | Pontiac Cars & Trucks

1 Answer

Heat doesnt work


check your fluids radiator should be full and resavor should be at full level if you dont have enough anti freeze it wont push fluid into your heater core also pay attention to your tempature gage if the temp is low you wont get good heat your thermostat could be stuck wide open I would try adding anti-freeze first though that usually fixes it make sure its 50/50 if you just add water sooner or later that water will evaporate

Dec 08, 2012 | 2005 Pontiac G6

2 Answers

2003 Buick Century is over heating in the morning only. Radiator, thermostat and sensor have all been replaced. Water pump and fans have been checked. When it idles it gets hot but when you rev the motor...


Sounds like the intake gasket or even possibly the head gasket have gone south if everything else has been replaced. Internal engine leaks will cause engine to overheat very easily.

May 19, 2010 | 2003 Buick Century

5 Answers

Heater immediately fogs all windows and there is a sweet odor in the cab of 2003 Buick Rendezvous, defroster works fine, but will not clear the windows after heat is put on


Sounds like a possible heater core failure(hole in it) the smell indicates to me the coolant(anti-freeze) is leaking into the passenger compartment.
Check the carpet in front of the front passenger seat for moisture, this would confirm heater core leak.
Good luck !

Jan 28, 2010 | 2003 Buick Rendezvous

1 Answer

Anti freeze leak across the front do this car


yes it has freeze plugs,water pump may be leaking,fuel pump has nothing to do with coolant leaking

Dec 20, 2009 | 1992 Buick Park Avenue

1 Answer

Lost anti Freeze


Could be anything - a pump, hose, radiator, frost plug, failed gasket, etc. Inspection... or pressurize the system to make it leak will reveil the problem

Apr 19, 2009 | Buick LeSabre Cars & Trucks

2 Answers

Heater won't work


make sure there is enough anti-freeze in the truck and if it be a while flush the system and replace thermastat and check all the fuses for the blower and if they are good and the power going to the blower is but none is coming from the blower replace the blower itself

Feb 01, 2009 | 1994 Nissan Pickup

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