Car smells of antifreeze but is not overheating
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Joined: Dec 2008
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From: Morgantown PA
Car: 89 GTA
Engine: 5.7 TPI
Transmission: 700R4
Car smells of antifreeze but is not overheating
So I come into work today and after getting out I go and put my t-tops back on and as I come to the passenger side I smell antifreeze. Car isn't overheating and there is nothing on the ground. Also no smoke while running I only smelled it after the car was off and I was on the passenger side. Any ideas what I am looking at? Maybe the heater core has a leak in it? I will check that tomorrow. But any other suggestions would be nice too.
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Joined: May 2016
Posts: 15
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From: Chicago Illinois
Car: 1986 Camaro I-ROC
Engine: 305 LG4
Transmission: 700R4
Re: Car smells of antifreeze but is not overheating
sounds to me like its the heating core. See if you can feel any coolant in the passenger side carpet. Are your windows fogging up?
Last edited by 1986 I-Roc; May 31, 2016 at 07:09 PM.
Thread Starter
Member
Joined: Dec 2008
Posts: 267
Likes: 2
From: Morgantown PA
Car: 89 GTA
Engine: 5.7 TPI
Transmission: 700R4
Re: Car smells of antifreeze but is not overheating
Summer time I have the tops off and windows down, and no the carpet isn't damp. I haven't took off the passenger side panel. I'll do that in the morning when I get off work
Thread Starter
Member
Joined: Dec 2008
Posts: 267
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From: Morgantown PA
Car: 89 GTA
Engine: 5.7 TPI
Transmission: 700R4
Re: Car smells of antifreeze but is not overheating
Joined: Mar 2011
Posts: 547
Likes: 27
From: Germany
Car: 1990 Trans Am
Engine: 305 TPI
Transmission: Auto
Axle/Gears: Stock
Re: Car smells of antifreeze but is not overheating
Could be one of your freeze plugs. There's one just above the starter motor, for example.
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Member
Joined: Dec 2008
Posts: 267
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From: Morgantown PA
Car: 89 GTA
Engine: 5.7 TPI
Transmission: 700R4
Re: Car smells of antifreeze but is not overheating
Drove the car home yesterday and after getting home I didn't spot any issues. No leaks coming from the engine. No antifreeze on the ground or splashed around anywhere. Car doesn't overheat. I did hear a bubbling sound coming from the overflow bottle. But that was after the car was off. Perhaps the smell was just that coming out of the bottle as it was filling up? I checked the radiator (which is brandnew btw) and the car was circulating antifreeze fine. Also when the car was off the antifreeze came up to the hot line when it was hot. I too am baffled about this as well.
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Joined: Mar 2011
Posts: 547
Likes: 27
From: Germany
Car: 1990 Trans Am
Engine: 305 TPI
Transmission: Auto
Axle/Gears: Stock
Re: Car smells of antifreeze but is not overheating
Give your car a new radiator cap and overflow bottle cap.
Assuming you don't have any exhaust leaks into the coolant and your cooling system has been burped properly, that should take care of it.
Assuming you don't have any exhaust leaks into the coolant and your cooling system has been burped properly, that should take care of it.
Thread Starter
Member
Joined: Dec 2008
Posts: 267
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From: Morgantown PA
Car: 89 GTA
Engine: 5.7 TPI
Transmission: 700R4
Re: Car smells of antifreeze but is not overheating
Okay I'll do that. Thanks for the heads up! I did also have the coolant system drained and flushed when I had the new radiator installed. Where can I find a new coolant overflow bottle at?
Joined: Mar 2011
Posts: 547
Likes: 27
From: Germany
Car: 1990 Trans Am
Engine: 305 TPI
Transmission: Auto
Axle/Gears: Stock
Re: Car smells of antifreeze but is not overheating
You don't need a new bottle, just the cap for it. Or is your bottle busted?
Perhaps they didn't burp your cooling system while they flushed it.
Perhaps they didn't burp your cooling system while they flushed it.
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Re: Car smells of antifreeze but is not overheating
Best/fastest way to diagnose these issues is to pressure test.
You can rent a tool, or use an air compressor, simply fill the radiator with air pressure using the overflow tube usually works fine. It will swell up to it's cap max, around 12-15psi, and then you will be able to find all leaks as it bleeds down and sprays coolant out.
You can rent a tool, or use an air compressor, simply fill the radiator with air pressure using the overflow tube usually works fine. It will swell up to it's cap max, around 12-15psi, and then you will be able to find all leaks as it bleeds down and sprays coolant out.
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