94 2.2 "elbow" on firewall leaking antifreeze - Chevrolet Forum - Chevy Enthusiasts Forums

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Cavalier Starting in the 1980s. the Cavalier made a name for itself by offering an affordable 2 and 4 door compact.
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Old 02-04-2007, 09:28 PM
Join Date: Feb 2007
Posts: 1
Default 94 2.2 "elbow" on firewall leaking antifreeze

I'm new to the forum, and was unable to find this in the search.

I have a 94 2.2, w/135k - love the car. It is leaking antifreeze from a plastic elbow on the firewall. It is on the passenger side, about 6" to the left(as you're looking from the engine bay) of the heater core. It appears that the A/C line goes into the firewall right next toit. I can get a picture if this does not sound familiar.

I'm in the process of replacing the heatercore, but I do not think this will fix it.

Has anyone run intothis?

Thanks for your help.
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Old 03-03-2007, 05:06 PM
Join Date: Mar 2007
Posts: 3
Default RE: 94 2.2 "elbow" on firewall leaking antifreeze

If it's a rubber elbow that comes out of the firewall and points straight down, then your heater core is the problem. Chevy used plastic lines to connect the heater core to the hoses. The plastic line inevitably splits at the core end and it leaks like a basket.

When you replace your heater core, the newone should come with steel lines. The lines may also be able to be rotated to help you get the new core into place. You shouldn't have any further problems with it once you replace it. If your new heater core has plastic lines, I'd recommend returning it and getting one with steel lines. They're not very expensive, either.
1993 Ford F250 Supercab 7.3L IDI N/A Diesel (247,000 mi.)
1984 Mustang 6-speed 300+ HP... for now (My resto - 146,000 mi.)
1994 Z24 Convertible (My woman's ride - 122,000 mi.)
1965 VW Beetle (My woman's resto - God knows mi.)
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