|09-25-2013 01:47 PM|
I'm so glad I found this thread!!
I was having the same issue as some of you posted. I just picked my Jeep up from the mechanic and he had just replaced the intake manifold gasket trying to fix a exhaust leak.... then my air started acting up. After reading this thread I went out and sure enough the vac line was tucked up behind the cords on the hood.... Thanks for leading me in the right direction!!
|02-05-2013 09:32 PM|
|lys327||sweet i will check the lines again, after the temp gets above 20....|
|02-05-2013 08:33 PM|
You have a disconnected/hole in your vac line.
Let m find the digram
|02-05-2013 08:31 PM|
|lys327||i have a 97 tj (no ac in jeep), my issue is when i put the heat on floor, it blows little out the floor and most through the defrost. when i put it on driver only the left two vents blow out. temp is good, just bad flow. i have read through this thread and dont see anyone else having this prob. any advice?|
|01-28-2013 09:20 PM|
|michaelD||thanks for this thread. I have an '03 and just replaced PVC fittings when heater selection went out. Was set to get under dash when I decided to check forum! Figured the vacuum line had to be right where I had been working, and sure enough, found it. Took a bit longer to find where it went, and the fit was pretty sloppy, but I found some perfect size tubing to act as a shim/spacer, and everything works. 5 min fix! Thanks again|
|10-30-2012 08:40 PM|
I checked the actuators, and my defrost one appeared to be either broken down inside where I couldn't see, or loose. I was going to try putting a screw through it as suggested, but I just pushed on it, and it seemed to "seat." Been running the defrost and all other modes for about a week, and everything works.
HOWEVER, now it sounds like the fan in hitting something. I am assuming it is hitting the door but not knocking it closed now? Anyone have any theories on that?
|10-30-2012 08:13 PM|
|Xikky||same problem except that it only blows through the feet vents and the top of the face vents to defog the windows..|
|10-21-2011 05:40 PM|
|jebby||same problem hoping to tear into it this weekend. any tips on getting at it to put the screw in?|
|10-20-2011 04:40 PM|
I also have the problem with the defrost not working. Except:
Mine starts to work. Then I hear a thumb like something is getting sucked/blown into the airway. When I return the switch to the vent or floor I hear it release from its spot. Before I start digging around under the steering wheel, has anyone had this problem. The sound comes from slightly below the defrost vent.
|10-10-2011 08:19 PM|
Ok not a Newb to Mechanican but a Newb to working on Wranglers, finally decided to tear into my 98' to fix the defroster, found the broken lever for the defroster door, tried extracting the broken piece and it wouldn't budge so I ground a screw down to about a 1/2" long and then put nail glue on one side and screwed it down, seems to be working so far. Thanx for posting the fix and the pics I would have spent hours looking for the problem as I originally figured it was a vacuum problem.
Again Big Thanx for posting the fix and pics.
|10-01-2011 08:47 PM|
|Devon||My 2002 Sport had the same issue, heater would blow through the defroster and floor vents only. After reading this thread I was able to get my husband to pull out the battery and tray and find the vacuum hose was split part way. He kept asking are you sure cause i don't see any hoses...I assured him it was there and was very relieved when we found the split hose! Glad it wasn't the blend door because i would have been the one tearing apart the dash.|
|10-01-2011 04:21 PM|
|06-21-2011 06:27 PM|
|06-21-2011 06:10 PM|
|katycamp||BillD, I know this is an old post but I am now having the exact same problem that you posted here. The black plastic arm is broken just like you show in your picture. My question is do you think it would work if I just used a really good plastic epoxy and glued it back in??|
|04-04-2011 09:09 PM|
|kalreid||Great post, thanks for sharing|
|04-08-2010 10:51 AM|
Thanks a million!!!
|04-08-2010 10:50 AM|
|02-02-2010 04:30 PM|
|up2nogood||PM sent, thanks.|
|02-02-2010 08:02 AM|
|02-01-2010 09:35 PM|
|up2nogood||Having sort of the same problem, I don't understand how to get to the blend door, i've looked all over and all I see is a big vacuum can opening a big flapper door and a lever that moves with the temp slide adjuster. Both are located on the passenger side, under the dash. I looked under the steering column, behind the cover, but didn't see anything. I followed the vacuum line from the intake manifold back to the "T", then traced it both ways. It seems to be plugged in tight, but I may replace it all to be sure. I'm getting very frustrated with my TJ, its the first Jeep i've had since high school. It has to be vacuum related, because I can't seem to direct the heat where I want it. I was surfing ebay for other parts and came accross something called a "heater treater". The pics and description made the fix look simple, but what is under my dash doesn't look like the pictures.|
|02-01-2010 08:55 PM|
|jamesdeanblvd||Great job with the pics. I did the same thing to my defrost about a month or so ago. Sheet metal screw worked great. When I hit the defrost now, the door slams open. As soon as I did it and it worked, I thought "I wish I would have taken better pics". I think this little tip can save a lot of people some headaches.|
|02-01-2010 06:29 PM|
|autopc25||Anyway to get the pictures back up?|
|02-01-2010 05:42 PM|
I have an '02 Wrangler and had the same problem. I crawled up under the dash to look for broken door hinges and found nothing. I zip tied vacuum lines to manifolds and nothing. I found a cracked vacuum hose in the fender on the passenger side under the battery. FIXED! So nice to have heat that blows through the vents all the time!
Check here: http://www.wranglerforum.com/f5/heat...ors-37712.html
|02-01-2010 04:22 PM|
|Peabody||I thought the A/C vacuum selector switch was bad because all selections resulted in air only from the defrost & floorboard. Plus the knob turned funny like the switch was just broken. All vacuum lines appeared to be in good shape and connected. I bought a replacement switch online ($25 with shipping). Went to replace it this weekend and after pulling the dash and controls, realized nothing was wrong with the switch, the knob was cracked where it engaged over the switch and was slipping when turned. I turned the switch with pliers and everything worked fine. Replacement knob ordered for $12. I'll keep the replacement switch in case the old one DOES go out (like I really would be able to find the replacement by then)|
|01-21-2010 02:19 AM|
I don't suppose we could get a repost of the pictures to go along with the original post?
|01-05-2010 06:58 PM|
|JeepsFTW||I had this problem and me and my dad just replaced some hose and it worked perfect again, not sure which hose it was though.|
|01-05-2010 05:36 PM|
I'm new to this forum but you people are great. Very knowledgable. All my heat and AC went to my defroster vents and all I could imagine was crawling under the dash to find the problem. This post said to check under the hood and I found the vacuum line just hanging around and doing nothing. Found where to plug it in and Wa La the problem was fixed. The rubber boot was loose on the fitting so a small ziptie tightened it up nicely. Thank you all for the info. It took ten minutes to fix. can't get any better than that.
Thank You again
|01-10-2009 10:30 PM|
|01-10-2009 12:20 PM|
I also have a similar problem, much like the one above. No matter which position is set, except Off, the air blows through the Defrost. I have looked around a little but I am not really sure what to look for. Does anyone have any pointers or can lead me in the right direction? I am no mechanic but I would much rather do it myself than pay someone a lot of money to do it for me.
|01-09-2009 07:59 PM|
|slf41002||Ok so if what I call the deflector flap(deflects the air from floor,vents,and defrost)is really a blend door and what I call a blend door that opens and closes to change from hot and cold air Or can be opened half way to blend for warm air (located on the passenger side) Is called what????|
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