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.

Why does my Jeep Grand Cherokee have no heat?

How to Fix a No Heat Problem on a Jeep Grand Cherokee. Your Jeep heater is blowing cold air and you’re not sure why. Two possibilities exist. One is a stuck thermostat. The other possibility is a bad heater core. Replacing the thermostat is fairly easy. The heater core is another story.

How to fix a Jeep Grand Cherokee heater blend door?

Our JGCParts Heater blend door kits will fix your heater or we’ll buy it back. 2004 Jeep® Grand Cherokee®. you receive when you turn the temperature knob on the dash. If you turn the knob for hot air, they move up. If you turn the knob for cool air, they move down. them to fall down in the cold air position.

Is the Jeep Sport heater hot or cold?

The heater in my 1999 Jeep Cherokee sport does not get hot. The fan works, but it seems the control switch from hot to cool is not funtioning. Air is at best slightly warm (outside above 45 deg) to cold (below 30 deg). Need to know how the flap in the box works, (electrical or vac.)

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.

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.

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.

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

How long does it take to repair a Jeep Grand Cherokee heater?

The hardest thing to do is make the first cut. This job will take between 30 – 45 minutes for most people. 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®.

Why are the blend doors on my Grand Cherokee cracking?

If you turn the knob for hot air, they move up. If you turn the knob for cool air, they move down. them to fall down in the cold air position. This causes the loss of temperature control – mainly the loss of heat. The OEM factory made blend doors are cheap and prone to cracking. The little drive motors used to move them up and

Is there single zone control on a 1999 Jeep Grand Cherokee?

Our single zone control can be used on ALL 1999 – 2004 Grand Cherokee® vehicles! On models with dual zone control, the dual control feature will be lost. There is no electronic diagnosis available for your Jeep®. Physically check the operation of the blend doors by removing the glove box.

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:

How to turn on heat in Jeep Grand Cherokee?

Check for a broken limit pin on the axle and check that you can turn it ~50 degrees of movement between the two stop points. 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.

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.

What are the fail codes on a Jeep Grand Cherokee?

20, 52 – Re-circ door travel too large (check our re-circ door listing) 54 and 56 are the most common fail codes and indicate a broken blend door. The system may still be marginally functional, but it will totally break soon. If any of the codes are present, the Heater Treater is the solution.

Is there a heater on my 1999 Jeep Grand Cherokee?

1999 Grand Cherokee that had no heat on the passenger side. The man we bought it from mentioned it was a $150 fix. He told us about your product and we searched you out on the net. It works great! * Chrysler Group LLC has neither licensed nor endorsed JGCParts to sell goods and services for Jeep® vehicles.

Is the blend door on my Grand Cherokee working?

At this stage in the job, things are going pretty good. The plastic has been cut, the old broken blend doors are out, and you are starting to see hope for having a heater again.

How do you install a Grand Cherokee door?

Install the cutout plastic housing back into place and seal with provided foam tape. Install drive motor and screws (or clip). Close glove box and reinstall rubber stop tabs. Lifetime warranty against defects or failure of our product.

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 there no heat in my Jeep Grand Cherokee?

This feature is not available right now. Please try again later. If you are having heat problems in your Jeep Grand Cherokee this is one of the first places you should look. This is a common problem with the Jeep Grand Cherokee. As a tip the drivers side actuator has a gear around it, these commonly break that you will need from the dealer.

What are the symptoms of a Grand Cherokee heater blend door?

The usual symptoms are that one side of the cabin will loose heat, followed by the other side at some point. Air Conditioning is working on cold but not hot no matter the control knobs setting. These have automatic zone control and the driver and passenger sides have individual controls. Close the glove box – Your Done! It’s really that easy!

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 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.

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.

How big is the fuel pump relay on a Jeep Grand Cherokee?

Fuel Pump Relay, Automatic Shut Down Relay, Powertrain Control Module, Transmission Control Relay (4.7L)

Where can I buy a Jeep Grand Cherokee heater core?

AutoZone carries Grand Cherokee heater cores that are quality tested for leaks and meet all the standards of the original factory parts. Coolant has a sweet smell, and if it’s getting into your cabin, you need to shop for a heater core replacement for Jeep Grand Cherokee immediately.

Whether you’re driving it down town or out in the wild, if the windshield of your Grand Cherokee suddenly fogs over for no apparent reason, it puts your safety at risk. That symptom is probably due to a faulty Jeep Grand Cherokee heater core, and AutoZone makes it easy to find the replacement you need.

How does the Jeep Cherokee a / C heater motor work?

A Jeep Cherokee A/C blower motor is a vital part of your Jeep’s HVAC system. The blower motor resistor controls the speed of your fan (blower motor). When the fan works at high speed, but not in some lower speeds, this is frequently a result of a faulty resistor.

Can a Jeep Grand Cherokee have an air conditioner?

It is entirely possible for your Grand Cherokee’s heater to work just fine even when the air conditioner is not blowing cold at all. That’s why troubleshooting the air conditioner is totally different than troubleshooting the heater.

Why is my Jeep Grand Cherokee not cool?

If your Jeep Grand Cherokee isn’t keeping you cool, we’ve outlined some of the most common reasons why this might be happening. The only thing that the air conditioning system has in common with the heater is that they both use the climate controls and the blower motor.

How to test the temperature of a jeep heater?

Rotate the left temperature control knob clockwise (CW) one detent. 2. If you continue to keep the a/c and recirc buttons depressed, the AZC control module will perform a Segment Test of the Vacuum Fluorescent (VF) display.

How much refrigerant is in a Jeep Grand Cherokee?

Jeep refrigerant and oil capacity charts Year Model Refrigerant Refrigerant Oil GRAND CHEROKEE 2002-2004 All Engines R134a 27.00 PAG 46 2000-2001 All Engines R134a 24.00 PAG 100 1998-1999 All Engines R134a 26.00 PAG 100

Where to find fault code on Jeep heater?

If there are no fault codes, the “00” display value will remain in the VF window. Should there be any codes, faults in the order they occurred). The left side set temperature display will be blanked and the right side set

Can a jeep heater be operated in manual mode?

Can be operated in a manual mode. Uses engine temperature data, received over the PCI Bus, for cold engine blower lock-out. Uses engine RPM data, received over the PCI Bus, for wide-open throttle A/C cut-out. cooling performance.

Where is the air blower on a Jeep Grand Cherokee?

1. Blows hot on drivers side with AC on. 2. Blows hot on passengers side with AC on. 3. Blows cold on drivers side with heat on. 4. Blows cold on passengers side with heat on. 5. Hear blower but no air blows through any vents. 6. Airflow is present but it is not blowing cold.

What causes dual zone AC on Jeep Grand Cherokee?

Jeep Grand Cherokees with dual climate control (for the AC / Heater system) that have incorrect air temperature blowing on either the passenger or driver’s side is usually one of two things. One of the blend door actuators (motors), or the the dual zone blend door assembly could have a broken door.

Where does the heater core go in a jeep?

From looking at the diagrams online it’s a one piece double tube that goes from the engine compartment thru the firewall to the heater core. To replace it I’ll have to pull the heater core so I might replace that to just because. If anyone has anything to add feel free.

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.

What does it mean if your Jeep heater is leaking?

If it’s just leaking from a hairline crack in the black plastic elbow you can swap that out. It’s tight and awkward but definitely doable. 68137715AA is the whole supply and return hose/tube assembly (for 2011 5.7 engine, possibly different part if you’ve got something else).

Is it possible to replace a Jeep Cherokee heater core?

Yep every Jeep XJ Cherokee owner has to face it sooner or later, your on your way someplace in your XJ, it’s kinda cold and your heater just isn’t blowing hot air like it should. In this video I show you what it could possibly be. Also it’s alot easier than replacing a heater core. Loading…

Why does my Chevy Camaro heater not work?

They both should feel warm or hot to the touch with the engine on. If one of the hoses is hot, and the other one is cold, that is a pretty good indication that the heater core is clogged. If the neither hose has any heat, you may have air in the cooling system, low fluid, or low pressure.

How can I Fix my Jeep Grand Cherokee heater treater?

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: Turn the ignition switch on and turn on the AC system. You should see a temp display for the two sides.

Can a Jeep Grand Cherokee have hot air on both sides?

Yes, , reycled the system to relearn and still have hot air on The driver’s side and AC on the passenger side. Anyway, next step is to pay the dealer $50- $100 to reflash the climate circuit to make them pair up again.

Why does my 99 Jeep Grand Cherokee have no heat?

My 99 jeep grand cherokee has no heat, the air blows out but blows out cold air. It actually blows out whatever the temperature outside is. If it is hot outside I get hot air if it is cold I get cold air. Please help, no one can tell me what is wrong with it helpful? First feel the heater core hoses with the vehicle hot. They should be hot.

What kind of heater does a Jeep Grand Cherokee have?

My Jeep Grand Cherokee Limited has dual heater control (driver and passenger). Driver works fine, but passenger side (defrost, personal, and floor vents) all blow outside air even when you turn the control up to Hi. Change the control from hi to low and back with no change.

Why does my Jeep heater blow outside air?

Driver works fine, but passenger side (defrost, personal, and floor vents) all blow outside air even when you turn the control up to Hi. Change the control from hi to low and back with no change. helpful? I had the same problem I had heat only on one side and then no heat on one side.

Why is my air conditioning not working on my Jeep Grand Cherokee?

There are many reasons why air conditioning may not be working properly on your Jeep Grand Cherokee. When looking for the reason, you should always start with the most obvious cause, low refrigerant level in the system. In any case, it is advisable for laypersons to visit a workshop.

Where are the actuators on a Jeep Grand Cherokee?

One of the blend door actuators (motors), or the the dual zone blend door assembly could have a broken door. The actuator that controls the drivers side is directly behind the glove box.

How can I Fix my Jeep Cherokee heater?

Every Cherokee in this range either has, or will have, this common failure. 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.

What kind of engine does a Jeep Grand Cherokee have?

A 195-horsepower, 4.0-liter, inline six-cylinder is the base engine, and a 230-horsepower, 4.7-liter V-8 is optional. This year, the V-8 is available with 2WD as well as 4WD. The most comfortable vehicle I’ve ever driven. To date, this is the most comfortable and practical vehicle I’ve ever driven or Owned.

What should I do if my Jeep Grand Cherokee heater is leaking?

Run the Jeep Grand Cherokee’s engine until the hoses are warm. Check for coolant leaks. Adjust the fittings if coolant drips from the hose connections. Ensure that the Jeep Grand Cherokee has a 50 percent coolant level at all times to ensure proper functioning.

How often should you check your Grand Cherokee’s heater hoses?

You need to check the heater hoses after extensive road trips and after every spring to check for deterioration and leaks. With regular maintenance, a Grand Cherokee’s heater hoses can last 4 or 5 years. If you need to replace them, follow these steps. Allow the engine to cool down and then locate the heater hoses.

How do you install a new Cherokee heater?

Grease them with a gasket sealer to ensure a tight connection with the new heater hoses. Slide the clamps over the new Cherokee heater hoses, and screw the hoses onto the fittings. Check both ends of the hose to make sure you have a firm, snug connection. Use pliers to tighten the fittings if necessary.

Why does my Jeep Grand Cherokee have dual climate control?

Jeep Grand Cherokees with dual climate control (for the AC / Heater system) that have incorrect air temperature blowing on either the passenger or driver’s side is usually one of two things.

Is the air conditioner working on a 1999 Grand Cherokee?

Conditioning is working on cold but not hot no matter the control knobs setting. Our single zone control can be used on ALL 1999 – 2004 Grand Cherokee® vehicles! On models with dual zone

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