White smoke coming from the vents !

Tiny
1998 JEEP GIRL
  • MEMBER
  • 1998 JEEP GRAND CHEROKEE
  • 153 MILES
I have noticed white smoke coming from the vents while driving. I am not overheating and no moisture on the floor of the passenger side. Smells like antifreeze, Otherwise it runs fine, My dad takes great care of my Jeep and I would like to research this before bringing this to his attention, Thank you in advance for your input !
Tuesday, September 17th, 2013 AT 3:21 PM

7 Replies

Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
The smell of antifreeze is your heatercore leaking. Give it some time, and you should beable to feel the leaking antifreeze on the floor. Its in its early stages, but will only get worse. I suggest you replace your ac evaporator core while doing the heater core. Its a couple hundred extra, but well worth it.
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Tuesday, September 17th, 2013 AT 3:37 PM
Tiny
1998 JEEP GIRL
  • MEMBER
  • 4 POSTS
Thank you so much, I will let my dad know.
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Tuesday, September 17th, 2013 AT 3:43 PM
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Your welcome! Im here to help. Please keep me updated on how you make out.
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Tuesday, September 17th, 2013 AT 3:48 PM
Tiny
1998 JEEP GIRL
  • MEMBER
  • 4 POSTS
Just letting you know My A/C is inoperable, not a factor. Thank you :) I will update, just have to break the news to dad :(
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Tuesday, September 17th, 2013 AT 4:15 PM
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Any idea why? I may be able to help you with the ac as well.
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Tuesday, September 17th, 2013 AT 4:23 PM
Tiny
1998 JEEP GIRL
  • MEMBER
  • 4 POSTS
Hey mike just letting you know the problem is solved ! I had the heater core flushed as well as the cooling system ! My Jeep enjoyed a spa day ! Running like new and no more smoke :)
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Friday, September 20th, 2013 AT 3:20 PM
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Dont think its over, a heater core that leaks externally will continue to leak. The flush may have found a bit of sludge to clog the leak for now, but I believe the leak will come back. Keep a very close eye on it. Once the temp starts going down in the enviroment, towards winter, you may experience windows fogging up. I dont want to bring you bad news, but I have seen this time and time again in the shop. Keep me updated.
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Friday, September 20th, 2013 AT 6:09 PM

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