Smoke/Fluid from air vents

Asked by Jul 09, 2017 at 08:03 AM about the 1999 Jeep Grand Cherokee Limited 4WD

Question type: Maintenance & Repair

I have a 99 Jeep Grand Cherokee V8
(purchased it recently) and noticed that
when I turn on the heater, a cloud of smoke
emits from the air vents. It forms an oily
most on the windshield which smells sort of
sweet and Smokey. I haven't attempted to try
the a/c believing I would be looking at the
same situation. I also seem to be using an
abnormal amount of coolant. I have had to
refill the overflow bottle twice within two
months and have been noticing a burnt
coolant smell. I'm sure this problem is
beyond my ability to repair, but if anyone
could give some insight of what is be
looking to repair, at least I'd be able to come
up with the money to have it professionally
done. Thank You

3 Answers

52,625

The heater core is leaking coolant and will need to be replaced.

1 of 1 people found this helpful.
10,420

Yep, It's summer so if your lucky u can bypass the core so you can use your AC ... locate the 2 hoses going through the firewall to your heater ,,, disconnect them and reconnect outside the firewall then you have isolated the heater core so at least you have AC

2 of 2 people found this helpful.

Thank you very much Bob and Tom

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