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Leaking heater core

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19y ago

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Why would coolant in a 1999 jeep wrangler have a dark brown color?

The coolant is old, broke down, and needs replaced.


Why would a 1987 300zx blow sweet smelling steam through the vents and dash?

Sounds like your heater core has a leak and the sweet smell is your coolant.


Why would a 1999 Dodge 2500 Diesel have little to no cab heat when the fan is moving lots of air through defroster vents and floor vents?

Low coolant level? Thermostat opening too soon? Plugged or restricted heater core? Water pump not circulating coolant? System airbound?


Why would smoke pour from your ac vents without the ac running?

The heater core is leaking coolant.


Why would fumes come through your vents in a 1997 Ford Taurus?

High pressure coolant is blowing out through a small hole in your heater core, it will need to be repaired or replaced. If it is warm out it might be AC refrigerant leaking.


Why would all the water leak out on a 1999 Wrangler?

You would have a leak in the coolant system somewhere and you need to have the system pressure checked.............


Where Can you get a vacuum diagram for a 1997 Jeep Wrangler your AC is only blowing through the defroster vents so you think you have a vacuum leak or a bad actuator?

One could possibly find diagrams for 1997 Jeep Wranglers at a Jeep Wrangler official site or through a manual company. Another good idea would be to just consult a mechanic.


Why does smoke come through vents in car when the heater is running?

The smoke you see may be moisture/steam. The heater core is probably leaking engine coolant. If the "smoke" has a sweet smell to it, it's engine coolant. More info about the vehicle such as model and year would help.


What would cause Water to blow into the car from the defrost vents?

If we are talking rain water not engine coolant I would suspect the drains under the cowl are plugged up with debris (leaves and such). If it is engine coolant then I would suspect the heater core is leaking.


The heat goes out when the car over heats?

the reason that the heat would cease to work when the car overheats is that the car is low on coolant. coolant is warmed by the engine as it transfers heat away from the engine. the heated coolant passes through heater hose and through the heater core. The blower motor blows air through the heater core warming the air and pushes the warm air through the vents in the car to you. the heater core is a small radiator in the dashboard of most vehicles. If there isn't coolant in the car, the engine becomes too hot thus the overheating. a side effect of this is that the lack of coolant means that coolant cannot get to the heater core to be warmed to warm you


If my 97 expedition is leaking coolant - how would I know. I am getting the antifreeze smell out the AC vents but can see no drips or liguid in the cab. Would the degas bottle be empty or not full.?

The "antifreeze smell out the AC vents" would mean only one thing, you have a small leak in the heater core.


What is the solution for what smells like engine coolant to be blown through the air vents of a 1998 GMC Jimmy?

your heater core element needs replaced. expect a heavy repair bill $150 - $200. They would have to pull your dash board off to get to it...