C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Antifreeze smell?!?

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Old Aug 7, 2006 | 05:52 PM
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Default Antifreeze smell?!?

Anytime I get on the gas hard there's a pretty strong antifreeze smell for the next mintue or so. As long as I don't get on the gas there's not a smell at all.

What could be causing this?

FYI - I had to get a new radiator a few months ago because of a small leak, but it's not leaking anymore.
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Old Aug 7, 2006 | 06:31 PM
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any smoke?

I wonder if you have a weapy heater core.
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Old Aug 7, 2006 | 06:58 PM
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I had the same problem and mine turned out to be a head gasket. At a leisurely cruise I wouldn't smell anything. When I got on it, I smelt coolant.
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Old Aug 7, 2006 | 07:22 PM
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Check for water in the oil, coolant leaks under the car, and a wet or damp (sweet smelling) pass side floor board (carpet).
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Old Aug 7, 2006 | 11:45 PM
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with RRT
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Old Aug 12, 2006 | 10:32 AM
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I didn't find any leaks. The pass side floor was fine, not damp at all and no signs of ever being wet.
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Old Aug 12, 2006 | 11:20 AM
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Originally Posted by jay17
Anytime I get on the gas hard there's a pretty strong antifreeze smell for the next mintue or so.
Where are you when you smell it? Where is the smell coming from; under the car, under the hood, inside the car? With the heater core, at least, the first hint of a problem, is the sweet smell of failure. The fogging windshield and wet floor are yet to come.

RACE ON!!!
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Old Aug 12, 2006 | 11:21 AM
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Check the water pump's weep hole.
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Old Aug 12, 2006 | 11:43 AM
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Im with CFI,if there is no outside leak sounds like the start of a heater problem!!
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Old Aug 12, 2006 | 12:55 PM
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How do I go about getting to the heater core?
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Old Aug 12, 2006 | 06:56 PM
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While you are waiting for your FSM to arrive, lay in a supply of small bandages and mercurochrome. The heater core was the first part to go down the assembly line. Then, the car was built around it. Seriously, the heater core IS a project to change. You will need a good 1/4" drive socket set with a universal joint. Some have found that it is easier to remove the left seat and work from below. That is the "fast guy" method. I basically followed the manual and removed the dash pad, and worked from above. Having the seat out of the way could have helped me, too. There is always the Jeb Bartlett method: sawzall. You have to work in cramped quarters and there are bolts (screws) that have to be removed, that you can't see, but you can feel, get a finger, on most of them. Have fun.

RACE ON!!!
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Old Aug 12, 2006 | 07:34 PM
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Originally Posted by jay17
How do I go about getting to the heater core?
Jet Jock has a great pdf of the removal and installation of the heatercore. Its under the dash on the passengers side. Its not hard to do but time consuming. Good luck!
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