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Do not get heat inside the cab all the time - 2003 Jeep Grand Cherokee

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Change the thermostat flush the heater core by removing the hoses from the engine that go to the heater core and take a garden hose and run water through the core on the hose that comes off the thermostat housing til it comes out nice and clear. put back together fill with coolant. it is probably going to be rusty looking but you cant fix that.

Posted on Jan 03, 2011


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1 Answer

What makes the temp change from cold to hot inside the cab of the car?

there is a blend door located inside the heat and air unit .

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Sorry Ken, I have had that problem before on my 99 suburban and had to replace the heater core...Might check your thermostat first if you aren't getting any heat at all or very slight....Could also be an air bubble in your water line causing no heat to get through to cab...

Feb 02, 2013 | 2001 Chevrolet S-10

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Heater hoses do not get hot.Have replaced thermostate and still do not get heat inside the cab,What can I do?

Try this trick take the hoses off the heater core and flush it out with a water hose to get the airout the heater core.don't do it with the car running.goodluck

Dec 04, 2011 | Cars & Trucks

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Smell raidiator fluid inside the cab and the heater wont heat the cab,

heat core has hole in it never changed your antifreeze turned into acid

Jan 17, 2011 | 2001 Ford Expedition

1 Answer

No heat to cab or windshiekld

is radiator full of coolant? is it overheating? it may be time to replace your engine thermostat.that has alot to do with your heat. the radiator has to be full.the thermostat has to open and close to allow the engine to supply heat to the inside of cab.check radiator 1st then if it's full move on to the thermostat.make sure there are no leaks your engine fan good? just trying to cover a few things to help you.if this does'nt help you,please repost your question again with year,make, model and what type of vehicle you have. the more information that you post,the more we can advise you on what to look for. thank you for choosing

Jan 09, 2011 | Ford F-150 Cars & Trucks

1 Answer

My car is not hot air and the antifreeze liquid inside the cab beside the driver its a mazda mx3 1992

If no heat from heater its likely low on coolant, and antifreeze in cab on the floor means its probably leaking from the heater core.

Dec 13, 2010 | 1992 Mazda MX-3

1 Answer

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Coolant level was down by 2 litres. Topping it off solved the heat problem. I guess the heat core is plumbed to the coolant system, so low coolant affects the heat inside the cab.

Jan 06, 2010 | 1999 Land Rover Discovery

1 Answer

Coolant smell inside cab when you turn on car/heat

Likely you are in the beginning stage of a heater core leak. at this point, you may be able to temporarily solve the problem by using a good system sealer (I'm partial to the kind that comes as a silver powder) Since we don't actually know the condition of the core, temporary may mean a week or several years, but replacement is expensive and time consuming so I'd definitely give it a try.

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1 Answer

Heater won't heat in cab

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