White smoke from front hood (just infront the grill) V6 2011 - Jeep Garage - Jeep Forum

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Old 05-06-2014, 10:22 AM
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Question White smoke from front hood (just infront the grill) V6 2011

Hi Everyone,
I am very curious about the smoke that comes from the car hood.
First time did happen last winter but I thought it is because of the heat difference between the engine and wither, my be humidity also.

This happened again last few days when I was in the traffic light but when I pass the signal and stopped aside, found nothing. Everytime I see it when the car is not moving but can't catch the source since the smoke is gone whenever I move the car to look at it.

I had one time event (not in the same time of the smoke problem), where the car was getting a gasoline smell inside the passenger cabin.

This smoke makes me nervous and I don't know what to do?! I want to get advice from you guys before going to the dealer.

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Old 05-06-2014, 10:57 AM
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Re: White smoke from front hood (just infront the grill) V6 2011

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Originally Posted by Omar 70th View Post
Hi Everyone,
I am very curious about the smoke that comes from the car hood.
First time did happen last winter but I thought it is because of the heat difference between the engine and wither, my be humidity also.

This happened again last few days when I was in the traffic light but when I pass the signal and stopped aside, found nothing. Everytime I see it when the car is not moving but can't catch the source since the smoke is gone whenever I move the car to look at it.

I had one time event (not in the same time of the smoke problem), where the car was getting a gasoline smell inside the passenger cabin.

This smoke makes me nervous and I don't know what to do?! I want to get advice from you guys before going to the dealer.
Heat difference alone won't do it... Can you smell coolant at any time if you roll down the window when you see the white smoke? [presumably steam]

It could be ice/snow buildup on your radiator/grille being warmed up enough to show up as steam... but I've never observed this even in sub zero temps with heavy snow packing into the grille...
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Old 05-06-2014, 11:08 AM
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Thanks for your reply
but as you said , I don't think it is related to climate temperature. That was my first guess
It could be as you said but I didn't smell any radiator water

Thanks again
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Old 05-06-2014, 11:10 AM
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Re: White smoke from front hood (just infront the grill) V6 2011

I have something similar occur on my 2013 V6 within 15-20 minutes of starting. I stop for a traffic light after about 5-10 minutes of driving, and the steam rises out of the front, almost like the Jeep is overheating. The coolant/oil/trans temperatures are all normal when this occurs. After this short period of steam, it never returns for the rest of the drive.

This only happens when the outside air temperature is mediocre (under 50) and there's a mid-high level of humidity in the air. I live in Michigan, and recall seeing it first occur in the spring, and then again in the fall. I don't remember seeing it during summer or winter.

I haven't had any loss of coolant or other fluids that would cause white smoke. I've attributed it to some kind of water build up at the front end, whether moisture collected from driving, or moisture that develops on the exterior from being parked outside overnight.

I did a little research on this subject and found the general consensus was either this was considered a "normal" trait to have steam from water on the radiator, or it was possible that the radiator cap might be letting a little out.
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Old 05-06-2014, 11:14 AM
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Thats exactly what happens to my car. I don't want to leave until it is bigger problem
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Old 05-06-2014, 11:41 AM
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Re: White smoke from front hood (just infront the grill) V6 2011

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Originally Posted by Omar 70th View Post
Thats exactly what happens to my car. I don't want to leave until it is bigger problem
Mark your coolant overflow tank with a magic marker first thing in the morning after it has been setting overnight. Then check it under same conditions.

I've lived in fairly low humidity areas, which may be why I don't see this like someone in a really high humidity one would.

If you cannot smell coolant at all with your window open during any of these, I wouldn't worry about it overmuch.

Give your cooling system a good check for hoses easily crushed, any greasy/wet looking deposits at any connection, etc.

Since summer is coming and will likely be a scorcher, a professional coolant system check with pressure, etc. would not be out of order, and you'd sleep better next winter.
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