Question about Jeep Cherokee

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Hello,i have a 1997 jeep cherokee sport 4x4 4.0 and i only get warm air out of the heater.i flushed the heater core and it got a little warmer,but not that much.also i only have defrost on selector 1.the blower motor is fine.and when the defrost is on i have air coming out of the floor vents.i looked at the actuators on the drivers side under the dash,and the top actuator arm isnt connected to anything.could this be the source to all of these problems? if so,where can i get the plastic piece that the actuator attaches too? if it turns out to be broken?and if not,how do i re-attach it? thank you in advance

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  • Jeep Master
  • 450 Answers

Get repair manuel for this vehicle, second, change your thermostat on the engine, is your coolant any good, change it use peak 50/50 anti freeze, that 50% water is very important, its what gives you heat. never use 100% anti freeze, you need this water!!!!!!!, make sure your new thermostat is the right one, and rated at at least 180 degrees. also, figure out how to repair your own actuator attachment , c'mon dude use alittle common sense, you can do it.

Posted on Jan 12, 2013

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Posted on Jan 02, 2017

jeffreyhenry
  • 33 Answers

SOURCE: does my 1997 toyota land cruiser have a heater core?

Check with Toyota Parts. I'm sure there is one, but it is unavailable at a retail parts store. Heater cores are pretty much as necessary as the four tires on the outside are. My advice would be to remove the core and check the hose clamps or connections for other issues. You want to be sure that the leak is in the core and not in one of the hose connections. I think that is odd that your driver side floor is wet and not the passenger side. Open the hood and look for coolant hoses attached to the firewall (the sheet metal between your dash and the motor) and see if they are on the driver side or the passenger side.

Posted on Jan 13, 2009

  • 1 Answer

SOURCE: air cond warm coming out of driver side dash,warm passenger side

you want me to post a free solution yet want to charge for info I requested for free?

Posted on Jun 19, 2009

  • 436 Answers

SOURCE: How do you fix the driver side air blend door actuator?

you cannot repair the actuator you need to replace it with new one. These motors turn but get weak with time. if you test it, it works, put it in and it doesn't. this is because the motor is weak, unfortunately GM does not sell these motors separately.

Posted on Aug 23, 2009

Blessedbygod
  • 85 Answers

SOURCE: 2000 Dodge RAM no HEAT/ New heater core / AC evap.

There is a actuator on the right side of your leg while sitting in the drivers seat under the dash. It has a plastic rod for actuation manually actuate this diverter and should be the problem.

Posted on Oct 14, 2009

  • 290 Answers

SOURCE: 99 jeep cherokee problem w/ heat

It could be a flap but more likely you have a air trapped in the heater core or the hoses connecting the heater core when refilled the system after your repair.
Loosen the supply hose that go to the heater core at the highest point and run engine until coolant comes out.

Posted on Jan 05, 2010

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My 2000 Grand cherokee only blows warm air from defrost or any vent, 105 to 110 on a 32 degree morning with high fan, about 10 degrees warmer on low fan. It gets warmer when it warms up outside.Engine...


This is a common problem with WJ Grand Cherokees, it's called a "Blend Door".

In the heating and cooling system you have doors that open and close to give you warm and cold air and a mix of both.

What you have is an arm that pulls a door with peg on top, the peg tends to snap off. As you said your dealer replaced the blend door or doors I would take it back as is has blend door all over it.

Yahoo and youtube "jeep grand cherokee blend door repair"

I had a 02 limited blend doors issues (note the issueS) and was lucky to have it still covered.

I do hope this helped.


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Having problem with my heater on a 2000 jeep cherokee sport. It blows fine, switches from floor to vent to defrost fine, but I only get a little heat. I flushed the core but still little heat. how big a...


It is a rather involved job to replace the heater core. Here is a link showing how to replace it:http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?pageId=0996b43f802d7d3c
I would first check to see if the thermostat maybe stuck open, which wouldn't allow the engine to heat up enough to supply hot water to the heater core.

Oct 18, 2010 | 2000 Jeep Grand Cherokee

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Check the coolant level in the over flow tank/ bottle under the hood. You may find that the coolant tank is empty or very low, causing the engine to also not have enough coolant to circulate in the heater core that provides heat to the passenger area. Just a simple solution for now.

Feb 20, 2010 | 1999 Jeep Cherokee

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It sounds like the heater coil needs flushing out or replacing or the heater valve. Look on the engine firewall and make sure the heater valve is opening. If not open it manually and check the heat level. If that produced heat check the condition of the heater vale cable (or vaccum hose).

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unless you got visable signs of leakage its not heater core, but it could be pluged with sediment. take off both heater hoses and flush it both ways until it runs clear. you can also mix a little baking soda and water and pour in core and let set for a while and then flush.

Jan 11, 2009 | 1996 Jeep Cherokee Country

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the problem is the air temperture control door (known as a blend door) is stuck or the door's actuator is not working. your engine temp is correct and not the problem.

Dec 16, 2008 | 1998 Jeep Cherokee

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Defrost doesn't work


if your ac blows hard and cold then it could be your heater core, but most likely the thermostat is going bad. When those fail it leaves the radiator in an open position and all your coolant goes through your radiator, so when its cold out its hard to get warm air out of your heater. IF it were my jeep i would take it somewhere and have the radiator and heater core flushed and check the thermostat. IT can be done yourself but requires some flushing agent from auto zone or auto parts store and some time and auto knowledge.

Goodluck.

Dec 12, 2008 | 2002 Jeep Grand Cherokee

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The hoses from your heater core should be very hot to the touch. Check the hoses going to the core from the water pump. It should be very hot. The return hose should also be very hot. Now check the hoses going to the core. If they are not the same temp, then your heater control valve is not working correctly or the vacuum is not working. At any rate, locate the vacuum line going to the heater valve. Remove the silver bar on the valve from the plastic plunger arm. You will have heat all the time now if it was only a vacuum problem. You can fix it later when it's warmer out. BTW a 200* thermostat will make your heater even hotter.

Nov 21, 2008 | 1998 Jeep Cherokee

1 Answer

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Aside from flushing the radiator and heater core andreplacing your hoses, did you happen to replace your thermostat. Sounds to me like that's your problem if everything else seems to be in order. If you change the thermostat and still have no heat, you might check your vacuum lines running to the back of your heater controls inside your dash. That's really the only other thing that I believe could be causing your lack of heat.

Hope this helps! Have a great day and try to stay warm!

Nov 19, 2008 | 2000 Jeep Grand Cherokee

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