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.

Why is my Jeep heater blowing cold air?

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.

How does the heater work on a Jeep Wrangler?

When your Jeep reaches its optimal temperature, its thermostat opens and allows that coolant from the cooling system to flow through the engine, removing heat and sending it into the radiator, then into the heater core which, ultimately, distributes it into the Jeep.

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…

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.

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.

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 happens when the blower fails on a Chevy Equinox?

When the blower motor fails, the air conditioner and heater may still work, and heat or cool may be felt at the vents, but the air pressure will be dramatically decreased. This Read More When the heater control valve fails, adjusting the temperature may not change the air temperature at the vents, whether hot or cold.

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.

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 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.

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.

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.

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.)

Why does my Jeep Wrangler have no coolant?

However, even if there is no coolant smell, but an issue with the heater, it is a good idea to check these hoses for heat. If the engine is warm, then you should feel heat from the hoses as well. If not, then the coolant is not circulating properly and you could have air in the lines or a clogged heater core that needs a flush.

What to do if your Jeep Cherokee heater stops working?

If the heater has stopped working in your Cherokee, this process has failed in one way or another. A word of caution: If there is no coolant in your overflow, you can refill it by adding more to the overflow reservoir. There is almost never a situation where you would need to take the radiator cap off of the radiator to add coolant.

Can a bad thermostat cause a jeep to overheat?

Heater issues are not commonly the first indicator of a bad cooling system component, but if the thermostat or water pump is bad, the heater will usually not work properly either. If your Jeep is overheating and the heater isn’t working, the components of the cooling system are the likely suspects.

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 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.

How long does it take to fix a jeep heater?

If you take the Jeep to a mechanic, expect to spend between four to five hundred dollars to get the heater core replaced. You can, however, decide to fix it yourself. The thermostat takes approximately one hour. For the heater core be prepared to spend at least six hours on this repair job.

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.

Where does the heat come from in a Jeep Wrangler?

And it comes, basically, from heat generated by the engine. When your Jeep reaches its optimal temperature, its thermostat opens and allows that coolant from the cooling system to flow through the engine, removing heat and sending it into the radiator, then into the heater core which, ultimately, distributes it into the Jeep.

How did the Jeep Grand Cherokee heater catch on fire?

When the operator activated the directional control valve, oil discharged from the open port, and sprayed up into the rafters, and into the gas heater. Within a few seconds, the heater erupted into a fireball. The victim, along with a number of co-workers, attempted to extinguish the flames with portable fire-extinguishers.

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:

Why is my Jeep Grand Cherokee Laredo running hot?

If you are driving and notice the temperature gauge is all the way up to the “H,” your 2006 Jeep Grand Cherokee Laredo (4WD) is “running hot” and overheating will occur shortly. It causes damage to the engine each time overheating occurs. 2006 Jeep Grand Cherokee Laredo (4WD) overheating problems can be costly.

Why does my 2007 Jeep Grand Cherokee not start?

2007 JEEP GRAND CHEROKEE. TRANSMISSION OVER TEMP SHOWS IN THE DISPLAY. VECHILE WILL NOT START FOR A FEW HOURS. DEALERSHIP DOESNT KNOW WHAT TO DO. TOLD ME IT HAS “AMNESIA”.

Why did my 2007 Jeep Grand Cherokee get towed?

Its the cars anti theft system which is triggered by a worn out key or a glitch in the system, had to have my 2007 jeep grand Cherokee towed this morning, an all they had to do was reprogram my anti theft system. Also made a new key with the remote (only way it will work since it has a required chip in it to start the jeep) just for precaution.

What causes transmission over temp in Jeep Grand Cherokee?

IT IS THE WIRING TO THE TRANS, THE FLUID HAS GOT UP INTO IT AND CAUSING YOUR PROBLEM, SEEN IT TWICE! You can’t post conmments that contain an email address.

How to repair a Jeep Grand Cherokee heater resistor?

How to repair Jeep Grand Cherokee Heater Blower Resistor. I own a 2005 Jeep Grand Cherokee. I haven’t had any major problems with my Jeep until the heat started fading. First the low speeds went out and then medium…until I was left with high. This might not seem too annoying, but trust me.

What are the problems with the 2005 Jeep Grand Cherokee?

Worst 2005 Jeep Grand Cherokee Problems #1: Sudden Unintended Acceleration 2005 Grand Cherokee Average Cost to Fix: $12,000. Average Mileage: 88,000 mi #2: Engine Stalls/Dies While Driving 2005 Grand Cherokee Average Cost to Fix: $3,500. Average Mileage: 110,000 mi

Are there any recalls on the 2005 Jeep Grand Cherokee?

Based on information received from our latest subscriber survey, our reliability history charts give you a rundown on how used vehicles are holding up in 17 potential trouble spots, ranging from the engine, transmission, and brakes to power equipment and the electrical system. The 2005 Jeep Grand Cherokee has been recalled 5 times by NHTSA.

What is the reliability score of a 2005 Jeep Grand Cherokee?

The Reliability score is based on our latest subscriber survey of 2005 Jeep Grand Cherokee owners. The owner comments describe problems respondents experienced with this vehicle.

Lack of heat – The biggest symptom of the P0128 trouble code in the Jeep Grand Cherokee is going to be lack of heat. When the thermostat doesn’t bring the engine all of the way up to the proper operating temp, it means that the water going through the heater core isn’t as hot.

What’s the outside temp in the Jeep garage?

This morning was the coldest day so far. Temp at 39F, started Jeep, seats and wheel heat came on. This afternoon, temperature is stuck on 40F. Outside temperature is actually around 60F. Any solution before going to dealership?

Is the Jeep Grand Cherokee p0128 Too Cool?

P0128 is not a serious threat to the immediate drivability of your Grand Cherokee. It should be noted that most modern fuel injected engines to like to run at 200+ degrees. Letting them run too cool can problems after an extended period of time.

Why is my Jeep Cherokee coolant thermostat stuck open?

Thermostat Stuck Open – Far and away, the most typical cause for the P0128 code is going to be a thermostat that is stuck open. When a thermostat is stuck open, it allows coolant to flow through the engine at all times. When this happens, the engine is “overcooled” and never reaches the proper operating temperature.

How does the heater on a Jeep Liberty work?

At the simplest level possible, the heater works by passing hot coolant from the engine into a tiny radiator called the heater core. 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 Liberty, this process has failed in one way or another.

What to do if your Jeep heater is not working?

Make sure your Jeep’s cooling system is working. Heater issues are not commonly the first indicator of a bad cooling system component, but if the thermostat or water pump is bad, the heater will usually not work properly either. If your Jeep is overheating and the heater isn’t working, the components of the cooling system are the likely suspects.

What to do if you have no air in your Jeep?

There are 2 fix’s on YouTube. 1 is to cut into the box going thru the glove box and the other is taking the entire dash, council, stearing wheel and the entire HVAC box out and splitting it open to replace the doors. If you do that I recommend replacing the heating core and resister and maybe even the heater motor.

How does the seat heater on a Jeep Grand Cherokee work?

The HSM or MHSM and the seat heater elements operate on non-switched battery current supplied through the power seat circuit breaker in the junction block.

Why is my Jeep Grand Cherokee heater not working?

While there are a variety of reasons your Jeep Grand Cherokee heater is not working, the most common 3 are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.

Why is the heater not working on my Buick Enclave?

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. If it’s not coming on at all, it’s usually either the blower motor or some other wiring issue.

What should I do if my Jeep Cherokee turns off?

Plus i had my motor rebuilt at 2000thou now 242, runs Great just anoying sensors that are starting to act up but repñace crank sensor first check pos wire from start make sure its good not arking i put 4guage on its better Plus put 4guage ground on bat do the crank sensor if u wanna start it up 11 people found this helpful. 1,030

What kind of engine does a Jeep Cherokee have?

190 ruben1226 answered 5 years ago Ruben from Tampa FL I have Cherokee sport 2000 4×4 4.0L run gray bat when engine its on normal temperature turn of so 1 hour later staring back replace can sensor and crank sensor if you can help me to repair thank 19 people found this helpful.

Why is my Jeep Cherokee overheating at low speeds?

Your engine may be able to stay cool at low speeds because it’s not working that hard, and therefore not creating as much heat. When you hit highway speeds, however, your engine needs a lot of coolant flowing through to keep it cool. If the thermostat doesn’t open, there isn’t enough flow to keep things cool.

Can a aftermarket heater leak in a jeep?

Its not uncommon to have an aftermarket heater core leak… sometimes mopar ones leak, if you have wet coolant coming down the firewall its sounding like the dash is going to need to come back out. Dropped it back at the shop I had the heater core done.

Why does my Jeep Grand Cherokee Run Hot?

Anytime you’re putting your hand around the radiator or fans in the engine assume that they are hot and that the fans can kick on at any time, even without your key in the ignition. While not having enough coolant may make your engine run hotter, it can also cause your Grand Cherokee to not be able to create enough heat.

What to do if your Jeep has no heat?

Try sticking a vacuum gauge on it and drive it to see if low vacuum conditions mirrors the low/no heat condition. Also, make sure there are no vacuum leaks (disconnected/broken hoses), especially under the dash in the area of the heater control valves. Let us know what you find.

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.

Why is My Blend door on my Grand Cherokee not working?

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 box in your A/C system’s housing, and move up and down to pass heat or cold air as you command. only option.

Why is my a / C blower not working in my Grand Cherokee?

However, over the next few weeks the A/C blower problem returned intermittently. It seems to be a problem when the temp is around 80 degrees or higher and the car has been sitting in the sun. The problem again happened on 6 October (a warm day) and it was exactly the same problem originally described.

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.

What’s the problem with my 2011 Jeep Laredo?

My wife just recently began experiencing an issue with her 2011 Jeep Grand Cherokee Laredo. She will have the blower motor running and it will just quit, then cycle back on again maybe a moment or two later. Sometimes the motor will quit running for up to a minute.

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 much does it cost to replace a jeep heater?

Replacing the thermostat is fairly easy. The heater core is another story. If you take the Jeep to a mechanic, expect to spend between four to five hundred dollars to get the heater core replaced. You can, however, decide to fix it yourself. The thermostat takes approximately one hour.

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 does it mean when your car heater is not working?

There are two hoses coming to and from the heater core. 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.

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!

Where is the heater on a 2011 Jeep Grand Cherokee?

No Heater, no hot air blowing after temperature is raised. 2011 Jeep GC lost heat on passenger side after loud calibrating noise coming from mid lower dash. 2 weeks later same with drivers side. No heat at all now. Diagnosed as need of Blend/Mode Door Housing.

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 does my Jeep Cherokee have too much coolant?

When the thermostat is stuck open, the vehicle will be getting too much coolant. On the other hand, if it is stuck in the closed position, the radiator will not be getting any coolant at all. If you do end up replacing the thermostat, make sure the new part is an exact match to your make and model of Cherokee.

How to fix no air flow Jeep Grand Cherokee?

The proper fix would be to disassemble to dash and then the blower and duct assembly out from under the dash in order to replace the broken parts however this simple fix will get the air working again quickly and cheaply. The only thing is you will loose the control to allow in 100% fresh air. Loading…

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 is my AC not working on my Grand Cherokee?

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Why is my AC not working on the driver side?

My Grand Cherokee Ac not working on driver side so we narrowed it down and found out we need to do a blend door actuator replacement. What was happening was the ac worked great on the passenger side but nothing on the driver side. We also couldn’t adjust the temp on the driver side for the heat in the winter.

Is the drivers side hot or cold in a Jeep Wrangler?

Yes, passanger side is smoking hot. Drivers is ice cold. Yes, passanger side is smoking hot. Drivers is ice cold. Click to expand… Just want to confirm drivers side is blowing ice cold air, not ice cold because there is no air blowing on the drivers side.

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.

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.

Why is the AC not working on my Jeep?

Just put in a 14 oz can of refrigerant in the Jeep. It took the whole can and the pressue was in the red until the can was in the system, now its in the green ( my gauge on my charging tool) and the compressor is not cycling as fast.

What happens if you blow the head gasket on a Grand Cherokee?

If your Jeep Grand Cherokee has blown its head gasket, you may find it running poorly or not at all. Below you’ll find the symptoms, causes, and price of a Jeep Grand Cherokee head gasket. A head gasket’s job is to create a seal between the engine block and the head (s). Outside of this job, it needs to fail before the head cracks or warps.

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.

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.

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 should I do if my Jeep heater is not working?

Check the thermostat if it stcuk open and the heater core if its clogged-up, if it has an heater control valve check that too-if all okay-could be door problems, vacuum/actuators and HVAC control module. helpful? I have 1999 Jeep Cherokee classic and the heat is not working what can I do?

Are there any problems with the 2002 Jeep Grand Cherokee?

A model’s indicator is understood to be the issues reported per thousand vehicles annually. This 2002 Jeep Grand Cherokee at the United States’ sales are 50,108 components. In our Problem 2002 Jeep Grand Cherokee with Additional Model Years When creating. jeepcarus

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.

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:

Why is my 2001 Jeep Grand Cherokee overheating?

There was a leak in the radiator of our 2001 Jeep Cherokee Sport, so my son replaced it. He also replaced the upper and lower rad hoses as “insurance.” The upper one was clogged with rust. Now he needs to know the location of the bleeder screw to finish up.

Why is my Nissan Rogue heater not working?

The heater core itself can go bad. Over time, they are known to clog and fail. If you have a heater core that clogged, it’s not going to be able to pass coolant through. Without the warm coolant going through it, there can be no heat. A bad heater core can also leak, so watch out for that. Feel your passenger floorboard to see if it’s wet.

How do you fix a Jeep Grand Cherokee heater?

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. Save hundreds of dollars and fix your Jeep® Heater at the same time. system. If they do not respond, disconnect

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 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 should I do about my Jeep Cherokee blend door?

This is a kit to do a complete repair on the blend door malfunction that is common to the 97- 01 Jeep Cherokee. Every Cherokee in this range either has, or will have, this common failure.

What makes a Jeep Grand Cherokee air conditioner work?

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. 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.

The jeep has dual controls,with both set on 85 it still blows cold air on both sides.Both heater hoses are hot. Also, what does the BCM mod do? Does this have any thing to do with my problem/ Anyone have any suggestions? I found this Jim…Maybe it will help you! Heater core maybe gone.

What kind of blower motor does a 2004 Grand Cherokee have?

2004 grand Cherokee limited v8 4.7 here. blower motor (sensor) replaced last month (Not OEM part) due to A whisper of hot and cold air only. The cold and hot air is coming out now but not nearly enough like before to cool entire interior. Have to keep fan on high just to feel slightly comfortable in driver seat.

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