Coolant Leaking inside the camaro on the passenger side when using the defrost!!!!
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Joined: Nov 2008
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From: Bay Area
Car: 1985 Camaro
Engine: 305 V8
Transmission: 700RA
Coolant Leaking inside the camaro on the passenger side when using the defrost!!!!
I need help this is a serious problem because we all know its winter time and my windows are so fogged i cant see in front of me so my defroster works but im leaking Engine Coolant inside the car on the passenger side floor I have no idea how this could happen and what can I do to stop it from leaking ??? And another problem is that when i lose so much of my coolant my car gets real hot to the point where it can overheat... I have a 1985 Camaro Berlinetta V8 305
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From: Grand Rapids, MI
Car: Z28
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Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
Replace the heater core.
It's overheating because there's less coolant to absorb the heat the engine makes (since it's leaking out the heater core, all over your carpet).
It's overheating because there's less coolant to absorb the heat the engine makes (since it's leaking out the heater core, all over your carpet).
Thread Starter
Junior Member
Joined: Nov 2008
Posts: 8
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From: Bay Area
Car: 1985 Camaro
Engine: 305 V8
Transmission: 700RA
Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
So I should replace my heater core it will be good to go ?? Thnx I appreciate you getting back to me so fast
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
Yep, swap it out and you'll be golden. It (the heater core) hooks up to the heater hoses in the engine bay, so the only way it can leak into the cabin is if the core itself has sprung a leak (which yours has).
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Joined: Nov 2008
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From: Bay Area
Car: 1985 Camaro
Engine: 305 V8
Transmission: 700RA
Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
ok thnx alot ill do that 2mrw haha i appreciate the advice so much t looks like its gonna be bitch to pull my dash everything off but i gotta do it i tried of my windows being fogged up lol
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
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From: Mississauga,Ont,Canada
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Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
Oh yeah its a pain in the *** job for sure as I got to do mine still but Ill wait till spring before I tackle it as the car isnt going anywhere in the snow.
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From: North East Pennsylvania
Car: 1989 Firebird Formula
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Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
yeah its a PITA. it dosent hurt to flush your rad while your at it. But, taking it out is the easy part. just get a few 1/4 inch extensions and you will be fine. the hard upper left screw is easy when you pull off the top dash cover so you can get two hands on it. Most of the screws are all the same for the dash. Instaling it is the hard part. getting it through the firewall with out bending the hoses badly. The core will run you about 20 to 30 bucks at a napa or autozone. good luck!
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Joined: Nov 2008
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From: Bay Area
Car: 1985 Camaro
Engine: 305 V8
Transmission: 700RA
Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
thnx i changed it yestaday it took me some hours by myself pulling the whole dash off and hoses to the heater core was hard to take off den installing the new one was a b*tch den putting thw whole dash back it was a process i also drained my rad and coolant reservior it seems like i fixed it reved the engine to gt it warm wit the defroster on high so it seems A1 today i will test drive to make sure of no leaks
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Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
Kind of sounds like an issues im having.......... the inside of my car gets full of steam/smoke and my windows get SUPER fogged up and you can smell coolant inside, guess ill have to check the passenger floor......
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From: Bay Area
Car: 1985 Camaro
Engine: 305 V8
Transmission: 700RA
Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
yea dats wat happened to me ur heater core sprung a leak
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From: East central, WI
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Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
If anyone is ever so broke to the point where you cant afford a heater core or need a temporary fix, just remove both hoses and connect them with a union.
(By-passing the heater core)
(By-passing the heater core)
Joined: Aug 1999
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
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From: Sonoma CO. CA.
Car: 1984 Camaro Z28
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Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
There is really no reason to remove the dashboard. I changed mine in about a half an hour. You just need to remove the kick panel and use a 6" ratchet extension. There is only one tough bolt. It's the upper middle one. Just slide the extension in there and you can guide it with your other hand. When you put the bolt back in use a little chewing gum or whatever to hold the bolt onto the socket and set it back in. Here's a crude drawing.
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[/IMG] Junior Member
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From: Southern California
Car: 1989 Camaro RS
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Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
So I had a mechanic replace my heater core cause it sprung a leak as well but now I still have something leaking in my passenger side floor, its not coolant I don't think its greasy but clear, can anyone help me out?
Joined: Aug 2014
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From: South Florida
Car: 92 Z28 Hawaiian Orchid
Engine: L98
Transmission: 700r4
Axle/Gears: 3.23 Posi
Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
Mine started to do the same thing a few weeks ago, I just blocked it off and everything was golden. Then again I live in Florida so the defrost is never used lol
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From: Sonoma CO. CA.
Car: 1984 Camaro Z28
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Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
Do you have T-tops? Is there anyway water is getting in through your door or window?
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From: Sonoma CO. CA.
Car: 1984 Camaro Z28
Engine: L69 305 H.O.
Transmission: T-5
Axle/Gears: 3.73
Re: Coolant Leaking inside the camaro on the passenger side when using the defrost!!!
There's no other fluid that could get to your passenger floorboard. You either have spilled something inadvertently, your heater core is still leaking, or your door/window/t-tops are leaking. When the mechanic fixed your heater core, did he replace the radiator fluid with radiator fluid or plain water?
Just spitballin' here....
Just spitballin' here....
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it has happened ot me. 




