Blower problems of the 1999 Jeep Grand Cherokee - part 1

The contact owns a 1999 Jeep Grand Cherokee. The contact stated that the blender that controlled the vehicle from running too hot or cold failed. The contact stated that the passenger side blower would expel cold air and the driver side blower would expel very little heat. The defroster was also inoperable. The dealer advised the contact that the entire dashboard and steering column would have to be removed in order to make the necessary repairs. The vehicle was not repaired. The VIN was not available. The failure and current mileage was 160,000.

Visibility: defroster/defogger system. Windshield blower. Cold air out the passenger side and visibility is decreased. I have had this fixed once when I bought the Jeep 6 years ago.

The contact owns 1997 Jeep Grand Cherokee. The contact stated that the fan in the ventilation system failed to run at a high speed. The vehicle was taken to the dealer. The technician stated that a blower motor resister needed to be replaced. However, the part needed was no longer manufactured. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 95,000.

Visibility:defroster/defogger system:windshield:blower . . . It was suggested that include the prior description but I'm in question. We have had this 1999 Jeep Grand Cherokee in the family for years and the past year the passenger side blows strictly cold air (it has dual air controls) - my nephew owned the Jeep prior to our purchasing it from him this past month. He said this has been this way for a while and not sure what to do. In researching the fix, it seems everyone has the same problem and it was suggested to report it to you in hopes that you can help with the fix as it is a costly one from Jeep ($1000 - $1500) . . . Since everyone has this problem it has to be a Jeep defect. Hopefully you can help us out.

Visibility: defroster/defogger system:windshield:blower.

I noticed that my air flow through the a/c and heater was not working - no air flow. It seems permanent - no air flow. I can hear the fan, but no flow of air - no matter what setting (defrost, floor, front side). What is worse, when my windshield fogs up, I have no visibility due to no windshield blower flow. I have not fixed it since it seems to be a widespread problem inherent with the Jeep design, and I believe Jeep should fix it.

Visibility: defroster/defogger system:windshield:blower -on a 1999-2004 Jeep Grand Cherokees.

Blows cold air and or don't blow.

My a/c system on blows cold air, no heat due to blend air door no functioning correctly. Also my defroster will not clear my windshield.

The "blower control module" is the electronic component responsible for adjusting the fan speed for the hvac on vehicles equipped with the automatic climate control. It is a well known problem that these units fail. It has failed on my vehicle. My own independent mechanic has replaced quite a few of them. The wiring harness and plug that supplies power is not heavy duty enough and it overheats and melts and could cause a fire. It can be further exaggerated if the blower collects debris and draws more current. Once it fails the blower will no longer operate. This makes the defroster unavailable, which could create very unsafe driving conditions should the windows fog up. Chrysler has a redesigned unit with a new harness so it is obviously a problem they are already aware of. I'm in the process of having the new parts installed and the old parts will be available. Here's a write up of how to fix it yourself. . Read more...

1999 Jeep Grand Cherokee limited has a safety defect in the ac/heater system. Blending doors mechanism controlling the defogging of the windshield break too easy. Replaced once about a year ago and then it has the same problem again. Too expensive. When it rains almost got into an accident because of the defogging system failure.

Visibility:defoster/defogger system:windshield:blower.

Hvac blend door frequently does not operate correctly causing visible issues with the windshield defroster/defogger.

The contact owns a 1999 Jeep Grand Cherokee. While driving 40 mph, the window became fogged. The heat would not activate to defog the window, therefore the contact's visibility was limited. The dealer stated that the failure was caused by the blend doors. The failure mileage was 100,000 and current mileage was 115,000.

Visibility: defroster/defogger system:windshield:blower dashboard have a loud creaking sound coming from its underside when you turn on your ventilation. There is a creaking from the dash seconds after shutting the engine off, numbers popping-up on your climate control display. Hot air blowing from one side of the dash even when you have the heat turned on. Your ventilation system may have failed, or, may be in the process of failing. Dealer wants 1200 to 1500 for the fix.

In my 1999 Jeep Grand Cherokee limited the blend door for the heating/air conditioning make a ton of noise, and fail quite often. It is a huge problem that is very expensive to fix and every dealer tells me it is a problem straight from the factory.

Two problems: 1. The blower motor resistor burnt out and the ac/head fan quit working. It was sparking when I managed to disconnect the wire. Luckily, I was stopped and could reach it in time - had I been driving its very possible my vehicle would have burnt up. 2. No heat. Entire last winter I was forced to drive 2 hours per day constantly wiping fog off my windshield. I was told by a 'mechanic' it was a clogged heater core so I had to put up with it because I did not have the money to fix it at the time. Dangerous and cold, but I had no choice. Now I am trying to get my vehicle repaired I start researching and find there are entire web sites devoted solely to these two problems. 1. Blower motor resistor shorts out. To properly repair you have to replace the resistor and the dashboard wiring harness. . . Very costly!! $600+ 2. No heat due to bad blend doors. $1200+ 3. Both of these appear to affect Jeeps 1999-2004 year models how can Jeep continue to knowingly sale automobiles with 1 - a fire and safety hazard with the faulty resistor? 2 - a safety hazard with no heat due to faulty blend doors? google it. . . Both of these are very well known problems with these vehicles and are not isolated incidents. Please look at these two links provided. They just start to scratch the surface of how bad this problem really is. Jeep should be responsible for repairing both of these problems as they are both safety issues and they knew about them prior to the sale, not to mention the cost of repairing these items places an unfair burden on the owner since fair trade would mandate these known and recurring defects should have been disclosed prior to sale. These are not rare or isolated incidents, they are known problems Jeep failed to disclose or repair. . Read more...

Visibility: defroster/defogger system:windshield:blower blend door failure - TSB.

1999 Jeep Grand Cherokee limited, dual zone heating and cooling. Problem is passenger side blows only cold air, will not blow hot. Same problem 1,000's others have.

Visibility: defroster/defogger system:windshield:blower . Heating system continues to fail which presents a safety hazard when I'm driving and the windows become fogged over. Some days the defroster works but most of the time it does not. The unit continually blows cold air out even if the heater is on.

The heater fan in my 1999 Jeep Grand Cherokee stopped working and there was a burning smell in the car. Mechanic found that the fan resistor (computer) and pigtail that connects to it were burned up. He checked with Jeep and there are 3,000 of these items back ordered because this is a problem on many of these vehicles. Its winter and 17 degrees in my car I could freeze with my family or my dashboard could catch on fire.

This is concerning a 1999 Jeep Grand Cherokee limited edition, I am writing due to repeated problems with the defrost control inability to clear or keep clear the windshield. Cold outside air blows from the defrost vents, and does not clear the windshield of frost or moisture, or causes moisture to re-freeze. This is caused by the failure of the blend doors in the heating system. This occurs while driving after allowing the vehicle to warm and the windshield to clear. This is a re-occurring problem, the dealers service manager says that all wj series Jeep Grand Cherokees with the dual climate control will have this problem and will cost between $1200 and $1800 to repair and that the repair is not permanent, just a fix until the parts breaks again. At this time this has not been repaired at the advice of the service mgr of my Jeep dealer, he recommended filing this complaint as he says there should be a recall on this issue.

Visibility: defroster/defogger system:windshield:blower ac/heater/defroster blower no longer operates properly. Ac self-diagnostic codes indicate "temp door/recirc door travel too large". No combination of control settings will make the blower/fan operate.

Blend door failure causing fogging of windshield.

Defroster/defogger in my 1999 Jeep Grand Cherokee limited is non-functional. The passenger side has no heat at all, but my main concern is the defroster which makes it impossible for me to see out of my windshield now that colder weather is here.

The hvac system on my 99 Jeep Grand Cherokee is faulty.

Blend door broke on passenger and driver vents. Blows only cold air.

Blend doors broke for no reason causing the vehicle to blow only cold air. Heater doesn't work and what's required is having to rip the dash out and replace the blend doors.

Wj Jeep Grand Cherokee blend door breakage/failure visibility: defroster/defogger system:windshield:blower.

Very unsafe malfunction of the "blend doors" in my heater mechanism. My father's 2003 has the same problem. Heat and defrost air only comes out one side, can't see out all the windshield!!! dealer knows about the problem, says if you only have one bad one, might as well replace them both with the new redesigned parts for $1600 - $1800. Help!.

The a/c heat blend doors on my 1999 Jeep Grand Cherokee ltd. With only 61,000 miles have failed and the system only blows cold air. This is very dangerous in winter driving conditions and as I read online it happened to almost 100% of these vehicles after they pass 50k miles. My father has a 2001 and has had the exact same issue. The repair is $1,800 and even the dealership told me it happens to all models 1999 through 2002 or 3. This should be a recall item not a chance for Jeep to make money off of a factory defect.

Air conditioning and heater does not work properly. Blend door keeps breaking.

Climate control unit faulty, "common" fault with this vehicle make / type, climate control unit unable to maintain temperature, blows cold when it shouldn't be, I am informed it is a fault with the blend doors, and to repair is very very costly as the whole dashboard has to be removed, parts are available but cost of repair is very expensive.

All of the sudden there was no air blowing out of the inside vents, I took it to my mechanic who explained that the blower quit working and the left side heater quit working as well. My mechanic fixed the blower because it was easily accessible and charged me $200 to fix it but not the heater because he explained he will have to remove the whole front dash and will cost a labor a about $500. I contacted the Jeep dealership who explained that services will not be covered under the warranty for this issue. I know a lot of Jeep owners who have had these same problems. I am afraid Chrysler did not equipped the vehicles with high quality blowers and or heaters. A recall on this issue from the manufacturer is needed!.

Complaint about 1999 Jeep Grand Cherokee. Blend door malfunction. No heat comes into passenger area from heater. Windshield won't defrost. While driving, ice accumulates on windshield inside and out. Visibility problem. Sometimes I have to hang my head out window to see road.