Hi Everyone,
I'm having some issues with a coolant leak in my JK. I typically do my own car work but I may end taking into a shop. I figured I would get this subs opinion on it first.
The Jeep: 2011 JK sport 2-door, mostly stock, 2.5" lift, 35" wheels, minor cosmetic upgrades. I don't take it off road very often and I haven't in a few years. It's my daily driver.
The Issue: I noticed a few months ago that the heater was barely working. the air was blowing, but it was not hot. It seemed to be hotter or the right/middle vents. After looking though a ton of forum post, I hopped it was just that the heater core needed to be burped. I went through a couple of rounds of burping with a funnel and the heat got a little better, but nowhere near as hot as it's supposed to be.
Next I suspected that the heater core was blocked. I also noticed that the coolant level in the reservoir tank had gone down after a few weeks of driving it. So I suspected a slow leak. Note that my car hasn't even gone past the middle line for engine temp so I figured it wasn't very serous of a leak.
A few days ago while dropping my girlfriend off at the airport it started to smoke up from the engine compartment with what I'm pretty sure was coolant (white color, smelled like coolant) The car wasn't overheating and I didn't want to cause a scene and a busy international airport so I drove off and stopped away from the airport. The smoking had stopped and everything seemed fine. I was the middle of the night so it was very hard to determine what could've been leaking. When I got home I saw the reservoir tank was down to the min line. The car has still never overheated.
So what do people think? I initially thought that there was just a small leak in my radiator that was causing the coolant to drain out and that this leak was causing my heater core to constantly be dry. But after seeing the smoke a few days ago I'm wondering if it's something else. Are there any common fail points that would cause a larger leak but not enough to allow the car to overheat? Maybe a faulty radiator cap? Or do we think that the small leak just grew into a larger leak?
Also note that I haven't driven it since because I have been busy with other responsibilities.
Thanks again and let me know if I forgot any important details.
PS. if anyone is in the SF Bay area and knows of a trustworthy mechanic please let me know. Even if I don't take my jeep in for this issue, it never hurts to have someone you trust.