I have a 1992 Trans Am 305 TPI with air-conditioning. I just discovered an anti-freeze leak inside my car on the passenger side. It’s leaking from under the dash and onto the carpet.

What could the cause be?
Heater Core?
Is there anything else under there?
How hard is it to fix?
Can I stop the leak by turning off the heater?

Thanks, Mark


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Mark,
1992 WS6 Trans Am,305 TPI
Wenatchee, WA

 

your heater core is leaking

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ICON Motorsports
1st & 3rd

 

ede is right..replace your core. if you can't do that right now by pass the core by connecting the 2 heater hoses

 

Yeah.. definately heater core. Mine decided to break rather drastically in my Z and it dumped probably over a liter of antifreeze into the passenger's side. My car smelled like antifreeze for the longest time.

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89 iroc-z 305 tbi
everything stock, except for a mirror that fell off

 

when my core decided to puke, I had about 2 inches of fluid on the floor, in one night. man that was bad, avery 10 miles the "FOG OF DEATH" would spurt out of the defroster vents and fog up the glass.

 

I just finished doing my heater core tonight in my vette.

Heater cores suck.

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

GO #3

 

Whoah nelly, check the hoses leading to the heater core leads in the engine bay first. Once I had my hoses a little loose, the water was leaking between the hose and the core leads and entering the car past the firewall seals. Sure would have been mad if I'd torn the dash apart and purchased a heater core.

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Rob P
89RSconvtZZ4TPI
Edelbrock Hi-Flow Intake
SLP Dual Cold Air Intake
1 5/8" Headers
Semi-Siamesed Runners
MSD6AL/relocated MAT/ AdjFPR/IROC frnt@rear swaybar/wonderbar/steeringbox/alum drvshaft/ Alston SFC/3:23posi disc rear/MAC LCA/H.Adams Panhard Rod/KYB struts/ shocks/
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!