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Author Topic: Potential coolant leak into combustion chamber???  (Read 4680 times)

svrider44224

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Potential coolant leak into combustion chamber???
« on: September 23, 2009, 04:34:00 AM »
My first post...
I live in Ohio, parts of the state require emissions check every 2 years.
Just got thru with a WAIVER this time because I spent nearly $400 on a new exhaust system..
OK that's all well and good..but the system was new 2 years ago when I went thru the same thing..although it eventually did pass that time.

The emission level that fails is NOX.

When the car is hot-ish..I can smell coolant.
But there are no visible indications of a leak anywhere.

My question is this...Is it possible that a small amount of coolant is getting into the combustion chamber somehow? I know this can heave very detrimental effects any many components..and destroy the converter...

Any thoughts???
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Heavensheros

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Potential coolant leak into combustion chamber???
« Reply #1 on: September 23, 2009, 06:51:00 AM »
i think i remember reading somewhere that a coolant smell could be due to cooling in the heat exchanger but i dont know best to get other oppinions
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Gus Kelley

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Potential coolant leak into combustion chamber???
« Reply #2 on: September 23, 2009, 09:09:00 AM »
Hey SV!  If your car is over hot and you smell coolant, is probably the radiator cap letting a little out. If you have a head gasket leak, it's probably burning up inside the combustion chambers and you'll see steam out the exhaust and smell a sweet odor produced by the coolant ,also from the exhaust tip.  Gus
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Gostlrs

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Potential coolant leak into combustion chamber???
« Reply #3 on: September 24, 2009, 12:57:00 AM »
pull your oil dip stick and see if you have coolant on it. if not then check up under the dash/center console and see if it looks like its been dripping there. your heater core could be bad.

as for failing nox, mine did the same. need a cat and special additives as they put it...
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svrider44224

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Potential coolant leak into combustion chamber???
« Reply #4 on: September 24, 2009, 09:14:00 AM »
I have the sweet smell...but no steam to be seen..No sign of leakage at the heater box...
Has a new Cat...
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svrider44224

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Potential coolant leak into combustion chamber???
« Reply #5 on: September 24, 2009, 09:15:00 AM »
OH...and thank you for your input...
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Gus Kelley

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Potential coolant leak into combustion chamber???
« Reply #6 on: September 24, 2009, 09:40:00 AM »
Hey SV! If you smell coolant under the hood, there are numerous hoses carrying coolant. You just have to pay attention to any drips or trails.  Good Luck!  Gus
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Gostlrs

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Potential coolant leak into combustion chamber???
« Reply #7 on: September 25, 2009, 02:15:00 AM »
check on the back side under the intake manifold

mine drips from the idle control valve every now and again
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Colorado1

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Potential coolant leak into combustion chamber???
« Reply #8 on: August 20, 2010, 05:49:00 PM »
Was curious, on the bottom of the intake(black part says  TURBO) I think I'm missing a gasket- think one goes there? If one does where do they sell them? That could be a big part of it missing. Any help is good- Thanks, Rob
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Rocketman

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Potential coolant leak into combustion chamber???
« Reply #9 on: August 20, 2010, 06:56:00 PM »
Between the intake manifold and the head? There is a gasket there, can be got any autoparts stores
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Colorado1

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Potential coolant leak into combustion chamber???
« Reply #10 on: August 21, 2010, 01:34:00 AM »
Thanks, I'll go today. Noticed one of the bolts wasn't all the way in when I cleaned it first time & tighten it flush. Has the permanant nut underneath but didn't see any signs of a gasket. Hope it's the hesitation problem-Just checked %#~¥*#%^%*€ it was just a bolt to the bracket. Gotta keep searching, staring & the engine & connections hasn't gotten me very far. O2 next I guess. Thanks again though Rocketman.
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