Question about 2002 Dodge Grand Caravan

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How do I know for sure I have a bad heater core

No heat

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Steam inside the van or water leak under passenger dash is sure sign

Posted on Mar 20, 2014


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Where is heater core/element on a 2005 Chevrolet Equinox.and how do i know if heater core/element is bad

Typical symptoms of a bad heater core are no heat, or leaking antifreeze into the cabin at your feet. You could also see the vehicle overheating or running hot.

Mar 31, 2017 | Chevrolet Cars & Trucks

1 Answer

Blows cold air no heat.installed new thermostat and heater cole.hoses feel hot on one cold on other.

Could be the water pump. When it heats up the impeller can spin on the shaft. Not enough pressure to push it the the heater core. Make sure you purge all the air out first. Cores are bad for holding air. Some cars worse than others.

Feb 11, 2016 | Cars & Trucks

1 Answer

My heat and defrost isn't working on my chrysler 300m what do I need to do to fix it

There is a valve that is vacuum opperated that allows hot coolant to flow into the heater core inside the car. The valve is mounted inline w water hoses leading to heater core. Has a vacuum line running to it. Make sure it works. Turn heater on. Remove vacuum line see if valve accuates. Movement it works. No movment either valve is bad or no vacuum at valve. Check and make sure there are actually coolant lines leading to heater core. Somtimes when a heater core goes bad and starts leaking (you will smell coolant odor in vehicle) a quick fix is to remove the lines and link them back to each other under the hood. No heat no defrost. Make sure this isn't the case w your car.

Dec 06, 2015 | Chrysler Cars & Trucks

1 Answer

How do I know for sure heater core is bad

hmmm no heat may be heat control valve on heater hoses

Mar 19, 2014 | 2002 Dodge Grand Caravan

1 Answer

Cannot bleed coolant system

I am very doubtful you have air in your hoses causing the problem. Feel the upper and lower heater core hoses at running temp and verify they are both hot, and should be same temp.(make sure heat is on high in car) Some newer cars lose some heat to the cab just because they are low on fluid. More likely though, you may have a bad radiator cap. If your cap is good, watch your hoses and make sure they aren't collapsing( the hoses will look like they are breathing in and out with car idling). You could even have a bad thermostat, or your heater core could be plugged. You can flush your heater core and see if that don't fix it, but since you have heat then it decreases, your core is probably ok.

Jan 26, 2014 | 2002 Audi A4

1 Answer

The heater blows cool air not warm air

First check and make sure that your coolant(antifreeze) level is full, the hot coolant runs through the heater core and than air is blown over the heater core heating the air for the heater. if the coolant is full you than need to check the thermostat and make sure it is functioning properly. finally if both of those are not the problem it is possible that your heater core is bad, however if the heater core is bad you will notice coolant leaking onto the passenger side floor. so if the floor is dry I would say the heater core is not the problem

Mar 27, 2011 | Nissan Quest Cars & Trucks

5 Answers

Heater blows cold air no heat

There are three thing that can go wrong here. I will give you the two simple ones first. first, check to make sure the thermostat isn't sticking or stuck. if it is, change it. two, Hot coolant going from the engine to the heater core, is controlled by a valve at the engine(these do go bad). Check the line when the engine is warmed up by turning on the heater(I know), and feel the line after about 5 minutes. The line should get hot, or very warm. The third is your heater core is clogged and needs to be replaced. hope this helps you

Jan 21, 2011 | 1985 Nissan 300ZX

1 Answer

My heater core needs replacing how do i i have a new 1 i dont know how to install it help me

Installing a heater core on a ford freestar is a tough job as is on most cars you need to remove the dash before you can get to the heater core ...This is a large job and if you dont have any experience at removing a dash then I would take to a garage ...ARE you sure the heater core is bad is it leaking or just have no heat ?? If no heat could be a thermostat , a heater control valve , low on antifreeze .....Hope this helps

Nov 20, 2009 | 2004 Ford Freestar

1 Answer


The heater core may be stopped up.Remove bothe heater hoses from the heater core,and use a water hose to flush out the heater core.Put the water hose up against one heater core pipe,it will come out the other pipe.Make sure the vent door inside the car is moving when you select heat,If I can help,any further,please let me know.>>

Oct 06, 2009 | 1988 Cadillac Eldorado

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