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  1. ZJ Grand Cherokee Forum
    Hey y'all! The heater in my Jeep ain't working. I have a '98 Jeep Grand Cherokee Laredo ZJ. It blows cold air just fine but when I turn it to hot it seems to give maybe a little puff of warm air but then goes kind of luke warm and even after driving for an hour it doesn't seem to heat up much...
  2. WK Grand Cherokee & XK Commander Forum
    Heater Core Leak (2005 Jeep Grand Cherokee Limited WK) So... I've got a sweet smell coming into the car whenever the engine becomes warm. Pretty sure I see a filmy residue on the windshield. My guess is that it's a coolant leak. I bought a pressure tester kit and hooked it up to the radiator. I...
  3. TJ Wrangler Technical Forum
    Hey there Jeepfolk. In the fall I replaced my heater core (not fun) in my 2005 TJ. All looked good except I recently noticed that maple syrup smell again (this time outside the car). Looking under the hood it seems the radiator is leaking (typical signs of coolant in the seams at the top and...
  4. JK Wrangler Technical Forum
    Mild Heat, less heat out side vents Hello, I have a 2015 2D JK I bought a few months back and this is my first winter with it. Now I took a plunge from a Tundra 4D 4x4 because I bought my wife a 2017 JKU and liked it so much I traded my paid off Tundra in and everyone thought I was crazy but I...
  5. WK Grand Cherokee & XK Commander Forum
    Hi, I have a post earlier about my heat in my 2009 Jeep Grand Cherokee. Last July, I replaced and rebuilt the entire system: - Heater core - water pump at 117k - Radiator cap (replaced in the last month) - Coolant level is fine - Thermostat (replaced in the last month) - Blend Doors...
  6. JK Wrangler Technical Forum
    I feel like I've lived on this forum the past month, but finally am posting to try and get answers. I'm going to start from the beginning... 2010 Unlimited Sahara w/ 110k miles. I noticed this past summer my passengers side floor board was always wet, which it continued being wet until replacing...
  7. TJ Wrangler Technical Forum
    I'm back, this time with a TJ! Just did a heater core replacement in my 99. And after tons of cursing and swearing (even more once I realized my issue didn't require a removal) I got everything back in and hooked back up and have two issues. My brake lights stay on after I press the pedal, but...
  8. ZJ Grand Cherokee Forum
    So I have a 98 Grand Cherokee Laredo and my husband and I recently noticed the passenger side carpet in the front and back is absolutely soaked. At first we thought it might be the ac condensation drain being clogged but now we think its the heater core. A little history, we recently checked...
  9. YJ Wrangler Technical Forum
    I need to know the heater core hose size for a 1990 Jeep Wrangler straight-6 4.2L. They guys I bought it from bypassed the heater core when he replaced the engine, because he only drove it during the summer, so I don't have the original hoses. I saw someone with a YJ 4.0l fuel injected say it...
  10. KJ Liberty Forum
    I recently bought a 2002 Jeep Liberty and she runs great all around. The only thing I noticed is that when I crank the heat up, the blower blows luke warm to moderately warm air when I'm at a light or a stop, but when I step on the gas (or even in neutral and rev the engine), the air from the...
  11. ZJ Grand Cherokee Forum
    Hello all, first-time poster long time lurker. Normally any problem I have with my 97 ZJ Limited I have found the solution to without requiring me to post. I have to say this forum is far and away the very best out there for Jeep owners. Such a wealth of information. It's saved me sooooo much...
  12. Engines & Drivetrain
    About two months ago i changed the thermostat and flushed the system, especially heater core because of a lack of heat. Boy was this a process ever since. I ended having to bleed the line about 4 separate times for it to not over heat while driving. Just a reminder, ever since I've done this...
  13. YJ Wrangler Technical Forum
    Hey guys, I just replaced the heater core on my jeep yesterday, everything went swimmingly, but now for some unknown reason the jeep won't start. I turn the ignition and the starter doesn't even click now. The jeep had absolutely no problems running pre-Heater Core exchange, and I didn't touch...
  14. ZJ Grand Cherokee Forum
    Hello I have a 94 ZJ with the I6. I have been trying to track down a coolant leak hoping to get some feedback. The reservoir will not hold coolant and will drain quickly when car is running if refilled. I refilled it twice and both times it drained after I drove the vehicle. I do not see any...
  15. TJ Wrangler Technical Forum
    We took my son's 2006 TJ to the dealership because of rainwater on the floor boards. They suggested replacing all the seals between the heater box and the firewall. The cost estimate was $784. We bought the seal kit for $26 from the dealer and did this ourselves. Dry so far. Let me say we...
  16. JK Wrangler Technical Forum
    I have read on this issue from jeeps that miles on them. My jeep has 900 miles on it and when I start it in the morning or if it has sat for awhile I get a rushing sound of water. That is some weird ****. I called one dealership and they had not clue. Is there something I can say to them that...
  17. ZJ Grand Cherokee Forum
    Searched and tested many different forum issues/fixes. Current problem is that at idle the heater puts out luke warm air. At higher rpm's the heat is nice and warm. -I have a smallish leak in my radiator, upper driver's side. After being driven around town and then left sitting over night...
  18. JK Wrangler Technical Forum
    I am having some heater core problems on my Wrangler. It appears to be leaking off one of the connectors to the circulation pipes. It makes a hissing sound when the car is running and the heat is on. It only gives off intermittent heat--and almost never. When I peel the carpet back from the...
  19. KJ Liberty Forum
    Hi Everyone, I have a 2002 jeep liberty. I left it for two weeks and go to Turkey but when I come back smoke&dust has been started to coming out from the ac vents in the cabin even when ac is off. it is leaving a greasy residue at the windshiled and it is smells really bad. I did not...
  20. Jeep CJ Forum
    Swapping my Heater core plenum/box w/ actuators into a newer tub. But for the life of me I cannot find a nut, bolt or screw under the dash to take it apart. Are they suppose to be taken apart from the firewall side? Note: this jeep has had lots of fab work so... not sure if they covered up...
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