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#3286359 - 02/18/14 03:59 PM replaced raidiator...still smell coolant..no leaks
Mark72 Offline


Registered: 09/10/09
Posts: 987
Loc: Illinois
I guess the subject speaks for itself. I own a 2001 Nissan Sentra 2.0. Had a new radiator put in it 3 weeks ago. No leaks, all clamps are working and no moisture around any of the hoses but when I shut the car off after a drive I still smell coolant on the outside of the car. When I open the hood, it confirms it because that is definitely what Iím smelling but nothings leaking and I donít know what to do. Any ideas? Would it take 3 weeks for residual to burn off?

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#3286369 - 02/18/14 04:07 PM Re: replaced raidiator...still smell coolant..no leaks [Re: Mark72]
Drew99GT Offline


Registered: 10/11/02
Posts: 21388
Loc: Colorado Springs
Coolant can stick around and stink for a while. If your Sentra has splash shields underneath, it can puddle up and take a while for the water component to evaporate and /or for the coolant to get splashed out of any crevices/nooks/crannies from driving. As long as the level stays normal and no visible coolant is leaking, you should be good to go.


Edited by Drew99GT (02/18/14 04:07 PM)

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#3286373 - 02/18/14 04:10 PM Re: replaced raidiator...still smell coolant..no leaks [Re: Mark72]
Mark72 Offline


Registered: 09/10/09
Posts: 987
Loc: Illinois
Well that was my thought to..but Iíve had the car on several highway trips since the radiator was replaced 3 weeks ago. Would that not have burn it off by now?

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#3286374 - 02/18/14 04:12 PM Re: replaced raidiator...still smell coolant..no leaks [Re: Mark72]
Warstud Offline


Registered: 09/02/05
Posts: 3821
Loc: MIchigan
Have you checked the coolant level? If it's low it may be a bad Intake Manifold Gasket.

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#3286381 - 02/18/14 04:17 PM Re: replaced raidiator...still smell coolant..no leaks [Re: Warstud]
Mark72 Offline


Registered: 09/10/09
Posts: 987
Loc: Illinois
Thought of that too...so I been checking the oil and it looks fine...no discoloration at all.

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#3286467 - 02/18/14 05:27 PM Re: replaced raidiator...still smell coolant..no leaks [Re: Mark72]
Warstud Offline


Registered: 09/02/05
Posts: 3821
Loc: MIchigan
Did you smell coolant prior to replacing the rad? And why did you replace the rad?

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#3286505 - 02/18/14 06:01 PM Re: replaced raidiator...still smell coolant..no leaks [Re: Mark72]
MolaKule Offline


Registered: 06/05/02
Posts: 16679
Loc: Iowegia - USA
Take off the shields and go to a manual car wash and spray the engine compartment with soap and rinse thoroughly.

Let it dry and check for any new coolant leaks.

Sometimes the hose clamps need re-tightening or replacement.
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