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Smoke coming from engine but not overheating


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dyarger
New User

Dec 7, 2015, 10:42 AM

Post #1 of 4 (876 views)
Smoke coming from engine but not overheating Sign In

Hello,

I know a fair bit about cars but I just wanted to check and see if anyone more knowledgeable had a different opinion.

Car is a 2005, Chrysler Town and Country minivan, 3.8 L engine. 115,000 miles.

When I start the car, everything is fine, but after it runs a while, it starts to have sweet smelling, white smoke come out from under the hood (im assuming this is overheating/burning coolant, I guess it could be something else like washer fluid but that doesn't make as much sense to me)

What has me confused is that the smoke stops if you keep it running for a while longer, and the engine never overheats.

My thought is that I have a head gasket that is barely leaking; and that as the engine heats up or cools down, it leaks more or less. I checked my oil, and the level has been stable, and doesn't look like coolant is leaking in there.

My other thought was that somehow my overflow tank has a leak, or is completely overflowing, as I did just add coolant recently, and prior to this problem happening.

Any advice on what this might be would be appreciated.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Dec 7, 2015, 10:58 AM

Post #2 of 4 (873 views)
Re: Smoke coming from engine but not overheating Sign In

Have you pressure tested the coolant system when it was cold to see if there are any leaks?





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dyarger
New User

Dec 7, 2015, 11:28 AM

Post #3 of 4 (866 views)
Re: Smoke coming from engine but not overheating Sign In

Have not done this yet, is it something I can do at home or do I need to take it to the shop?


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Dec 7, 2015, 12:05 PM

Post #4 of 4 (863 views)
Re: Smoke coming from engine but not overheating Sign In

Smacks of coolant and do pressure test and look around as DS said. Odor of antifreeze is unique and washer fluid if tank was broken doesn't make odor and leaks to the ground directly. I think water pump on this is on a timing belt and are a common place to leak first before you have noise or obvious symptoms.
Any - the worry is overheating no matter where it might leak and all that trouble and could be something silly?


T







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