How to fix a Jeep Cherokee heat and AC?

The pictures show the hardware provided for the fix. All work is done from the foot area of the passenger side of the Jeep, with a Dremel cut in the bottom of the heater box…no removal of the dash panel or evacuating the AC system and draining the radiator.

How do you replace the thermostat on a Jeep Cherokee?

4. Bolt the thermostat housing back on. I would recommend starting with the top bolt, leaving it loose, and then the bottom bolt. Tighten both bolts evenly, and don’t over tighten them. 5. Reconnect the heater core hose and the radiator hose, and clamp them down. 6. Allow RTV to dry for the recommended time.

How do you replace the heater core on a car?

Once the dash is replaced, attach the heater core hoses under the hood. (Note: Replace heater hoses and clamps if needed.) Reattach the negative battery terminal, start the engine and adjust the heater on its highest setting, refill coolant level . Allow the engine to reach operating temperature and check for leaks.

Where do you change the radiator on a jeep?

All work is done from the foot area of the passenger side of the Jeep, with a Dremel cut in the bottom of the heater box…no removal of the dash panel or evacuating the AC system and draining the radiator. Once completed, the alterations are under the dash panel in the foot area and are not visible.

How do you replace a heater core on a car?

As you remove panels, trim pieces, and bolts from the interior, label them with their sequential order and tape them to the part in plastic bags. A marker on masking tape will work. Be gentle with clips and connectors, as they’re pretty delicate and can become brittle on an older vehicle.

What are the parts of a Jeep Cherokee?

Jeep Cherokee Parts 2006 Jeep Grand Cherokee Jeep Grand Cherokee Laredo Jeep Cherokee Xj Accessories Jeep Accessories Jeep Zj Jeep Xj Mods Jeep Wrangler Engine Jeep Stuff Jeep Cherokee Electrical – Diagnosing Er… Jeep Cherokee Electrical – Diagnosing Erratic Behavior of Engine / Guage / Accessories – Replace Ground Cables danielalewine jeeps

Do you need a hose diagram for a Jeep Cherokee?

Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here – oxygen sensor question – I got a 2000 XJ with the 4.0L engine. And I’m looking to replace the Pre Cat O2 sensors Any idea on why Denso lists one part number per bank while NGK lists only one part number as a OE replacement?

How is the heater core connected to the engine?

Like a radiator, it’s connected to the engine’s cooling system with inlet and outlet hoses. When the engine is warm, the water pump circulates hot coolant into the heater core and its many small tubes. Turn on the heater, and air blows over the hot tubes and fins, cooling them and transferring the heat to the air.

Can a blend door be replaced in a Jeep Cherokee?

If the system is loose or ineffective, the blend door is the problem and the HeaterTreater is the solution. This kit replaces the plastic door and axle with stainless steel components that can withstand the force and will last longer than the Cherokee.

How does the defrost switch work on a Jeep Grand Cherokee?

Under heavy throttle, vents switch to blow on defrost, release throttle and vents return to normal dash. When my a/c or heater is on and I accelerate, it will start blowing out of the defrost. When I hit a constant speed it goes back to where I had it set.

How much does a vacuum check cost on a Jeep Grand Cherokee?

There is also a revised vacuum check valve available to address this concern. The average cost for a Jeep Grand Cherokee AC Diagnosis is between $53 -$67. Learn More

Where is the fuse box on a 1999 Jeep Grand Cherokee?

Interior Fuse Box Location: 1999-2004 Jeep Grand Cherokee 1. Getting Started – Prepare for the repair 2. Remove Cover – Locate interior fuse box and remove cover 3. Locate Bad Fuse – Find the fuse that is tied to the bad component 4. Remove Fuse – Take out the fuse in question and assess if blown 5.

Why did my a / C fail on my Jeep Cherokee?

Failure of your heat and/or A/C in your Jeep Cherokee is due to the failure of your blend door. Heater Treater replaces the cheap, plastic blend door with steel.

How does the blend door work on a Jeep Cherokee?

– The Cherokee is built with a Blend Door to control the heater and AC function. The blend door controls air flow through either the AC evaporator or the heater coil, or any combination in between. The doors are controlled by a stepper motor.

How does a heater treater work on a jeep?

Heater Treater attacks the root cause of the failure by constructing hardware that is designed to meet the rigors of normal operation of the HVAC system, and last for the life of the Jeep. If you feel uncomfortable installing the repair yourself, go Here to find a HeaterTreater certified garage near you.

Why does my AC heater keep stalling when I open the door?

The issue with the system is that the drive motor has a wider range of motion than the movement of the door will allow. At the extents of movement (full heat or full AC), the motor overdrives the plastic blend door into the the internal stop point in the heater box until the motor stalls.

Why is the heater on my Jeep Cherokee not working?

May 2, 2019. One of the most common (and inconvenient) problems with the Jeep Cherokee is when it has no heat coming from the heater. Not having a functioning heater makes driving much less comfortable, and can be a sign of certain issues. At the simplest level, there are two main reasons why the heater is not working.

Why is my XJ heater not blowing air?

[A] If you hear no fan and have no air blowing from any vent on any option, either your Climate Mode Selector Switch is busted, your fuse is blown, or the Blower Motor is out. Check the fuse first, that’s easy to replace.

What does the thermostat on a Jeep Cherokee do?

Never touch the radiator cap unless the vehicle is ICE COLD. The job of your Cherokee’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up.

Why is the heater not working on my Ford Escape?

If the neither hose has any heat, you may have air in the cooling system, low fluid, or low pressure. If you look at your temperature gauge, and the engine is running hotter than normal, but there is not heat coming from the heater you may be having issues with the water pump.

Is there a problem with my Jeep Grand Cherokee?

Very often, this will solve the problem. But Jeep Grand Cherokees seem especially prone to more serious transmission problems, and some owners are quite vexed at their inability to determine the causes.

Why is the vent selector not working on my Jeep Wrangler?

I had that problem and, upon removal of the HVAC assembly, noticed that there was a stick wedged into the cable system. Must have fallen through the dash or something… Mine is the same way. the switch is stuck in the vent/feet position and won’t turn at all.

Why is my HVAC vent selector not working?

I have an ’02 TJ X and am having trouble with my HVAC vent selector. It will not switch into upper vent mode, only have the option to have it all on my feet, or feet and windshield. I searched but didnt find any real solutions. Help?

Why is my AC not working on my Jeep Wrangler?

This means you have enough vacuum to run CC and AC properly, but you’re pulling in air that shouldn’t be in the vacuum system, which somehow prevents the motor from idling correctly under load. It will run fine though, when you’re going down the road. The vacuum lines for the whole thing was about $14.

How do you change ignition switch on Jeep Cherokee?

Position your replacement ignition switch at the edge of your steering column so it is prepared to install. Change the switch’s slider so that it is set on “Accessory.” Attach the slider hole and actuating rod. Connect the switch. Use your fingers to get the pair of retaining screws tight but not stuck.

What kind of engine does the 2019 Jeep Cherokee have?

There is a new engine in the 2019 Cherokee. It offers 270 horsepower through a 2-liter 4-cylinder design.

What happens when your Jeep Grand Cherokee heater stops working?

At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. If the heater has stopped working in your Grand Cherokee, this process has failed in one way or another.

What does the thermostat on a Jeep Grand Cherokee do?

Never touch the radiator cap unless the vehicle is ICE COLD. The job of your Grand Cherokee’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up.

What should the AC read on a Jeep Cherokee?

They should read 29 to 30 lbs. on the low side and at least 150 on the high side (with the engine off). If they are lower and the compressor did not come on, then it is undercharged and needs Freon to make the low side switch come on and activate the compressor. Start the car and turn the AC on.

What to do if your Jeep Cherokee is not running?

Remove the glove compartment insert, operate the air conditioning and move the knob that controls the position of air and notice which motor is not moving the lever to operate the door and replace the motor. If the line is not cold, hook up the air conditioning gauges.

Where does the Freon go in a Jeep Cherokee?

From the dryer the Freon flows through an H-block, which is similar to an orifice tube in function, where it turns the liquid Freon into a fine spray or vapor. This vapor or spray moves through the evaporator and absorbs the heat within the cabin and returns to the compressor.

When do you need a compressor in a Jeep Cherokee?

If the compressor makes a lot of noise or the clutch will not engage properly, it also requires a compressor. If the high side is very high and the low side normal or low, the condenser is plugged up and needs to be replaced.

Can a Jeep Cherokee defrost with no vacuum?

The selector defaults to defrost with no vacuum. I would check the vacuum first. The selector defaults to defrost with no vacuum. Click to expand…

Why does air only come out of defrost vents?

It is likely your vac reservoir is cracked or disconnected. When I turn on the air in my jeep the AC/Heat only comes out of the defrost vents at the bottom of the windshield no matter where I set the directional control? I could very well be very wrong but I think it might be a vacuum problem?

How does the 4 wheel drive system work in a Jeep Grand Cherokee?

In this way, the transfer case works almost identically to the NV247 transfer case used in the Quadra-Trac II system in 1999 to 2004 WJ Jeep Grand Cherokees. In 4WD Low mode, the clutch pack is locked and power flows through a 2.72:1 planetary gear set for higher torque at lower speeds.

What kind of engine does the Jeep Cherokee have?

It exemplifies Jeep® 4×4 capability with a distinctive, aggressive look for the most capable Jeep® Cherokee model and the most capable mid-size SUV in the segment. Thanks also to its standard 9-speed automatic transmission that performs with strong, smooth precision and is powered by the 3.2lPentastar® V6 engine.

Where did the 1998 Jeep Cherokee come from?

Salvage title issued|Rebuilt title issued. 1st owner purchased on 11/15/97 and owned in OH until 03/04/03 • 2nd owner purchased on 04/01/03 and owned in IN until 05/01/07 • 3rd owner purchased on 05/01/07 and owned in IN until .

Is there a coolant thermostat for the Jeep Cherokee?

Engine Coolant Thermostat. Your Jeep Cherokee is built to be tough while offering an impressive amount of utility. The thermostat seems like an unimportant part, but if yours becomes faulty, your engine starts to overheat. Maintain your ride’s performance by getting a thermostat replacement for Jeep Cherokee from your local AutoZone.

What kind of cooling system does a Jeep Comanche use?

1987-1992 Jeep Comanche (MJ) w/ LHD; w/ 4.0L engine.Application: Cherokee Cooling System. Coolant Bottle for Jeep Cherokee XJ w/ 4 cyl engine.

What kind of heater does a 1999 Jeep Grand Cherokee use?

JGCParts Heater Dual Zone blend doors for all 1999 – 2004 Jeep® Grand Cherokee®. The easiest, cheapest way to fix and restore heat to your Jeep. 1999 – 2004 Grand Cherokee®. The sure way to fix and restore heat to your Jeep®. Make the smart choice.

What is code for Jeep Grand Cherokee heater blend door?

This method involves a little disassembly but is a great way to ensure our Jeep® Heater aluminum blend doors are the right solution for you. The code numbers will be displayed on the screen one at a time. 22 or 54 – Left temperature door is broken or 47 – motor not responding.

Why is my Jeep Grand Cherokee heater not working?

If your Jeep® Grand Cherokee® heater only blows cold on one side all of a sudden, or seemed to just quit producing heat one day – you most likely suffer from blend door failure. on where you have the temperature setting knobs positioned. These little plastic flap doors hide behind your glove

Why did my a / C fail on my Jeep Grand Cherokee?

Failure of your heat and/or A/C in your Jeep Grand Cherokee is due to the failure of your blend door. Heater Treater replaces the cheap, plastic blend door with steel.

Is there a dual zone heater treater for Jeep Grand Cherokee Limited?

Heater Treater’s Dual Zone Blend Door fix is for Grand Cherokee Limited’s with dual zone temperature controls. You can read the fail codes on the system by following this procedure:

What should I do if my Jeep Grand Cherokee blend door is not working?

Start the GC and turn on the AC. You should be able to manually switch between heat and AC by turning the axle with your fingers. If the motor is spinning and not stopping, or the blend doors are not switching between AC and heat, your blend doors are broken and the Heater Treater Blend Door Fix is the answer.

Is it easy to fix a Jeep Cherokee door?

Fixing the door is relatively easy, but the labor (and cost) of getting to the door makes this a time consuming and expensive job.

Why are there dead mice in my air conditioner?

Often, we see rodent droppings around outdoor air conditioning units and we’ve come across dead mice which look like they’ve had an electric shock. Air conditioning units also attract other animals. We’ve encountered pigeons nesting and a few which have got caught in the fans.

Why is my Jeep Grand Cherokee not working?

Blend door actuator plays a role in controlling the air flow and temperature inside your Grand Cherokee. Anytime there is a problem with the temperature of the air conditioning system, it could be a problem with the blend door actuator.

Fixing the door is relatively easy, but the labor (and cost) of getting to the door makes this a time consuming and expensive job.

What to do with a Jeep Cherokee heater core?

Take the old heater core out of the Jeep Cherokee and dispose of the unit. Recycle the drained coolant by taking the drain pan with the fluid to your local recycling center or automotive supply. To keep from being injured or burned, allow the Jeep Cherokee to cool down before attempting to remove the heater core.

Why does my Jeep Cherokee heater stop working?

The heater core on your 2001 Jeep Cherokee is responsible for providing heat in the cab of your vehicle. Overtime or due to driving conditions, the heater core can become plugged with dust or corrosion and stop working.

Why does my Jeep Grand Cherokee have no air flow?

The fresh air/recirculate blend air door seems to have broken up in the air duct causing it to suck up against the blower intake and stop all the air flow.

Why does the a / C quit blowing on my 1999 Jeep Grand Cherokee?

The A/C (and heater) quit blowing on my Dad’s 1999 Jeep Grand Cherokee a while back so I took a look at it. The fresh air/recirculate blend air door seems to have broken up in the air duct causing it to suck up against the blower intake and stop all the air flow.

What are the switches on a Jeep Cherokee?

Instrument Cluster, Radio, Rear Wiper/Washer Switch, A/C Heater Control or Heater Control, Rear Window Defogger Switch, Extended Idle Switch, Front Fog Lamp Switch, Rear Fog Lamp Switch, Transmission Range Indicator Illumination (PRNDL), Transfer Case Switch Illumination

Where are the fuses in a Jeep Cherokee?

Here you will find fuse box diagrams of Jeep Cherokee 1997, 1998, 1999, 2000 and 2001, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay. Cigar lighter (power outlet) fuses in the Jeep Cherokee are the fuses #1 and #2 in the Instrument panel fuse box.

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