Question about 1994 Chevrolet C1500

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Heater core leaking

We have a 1994 Chevy C1500 pickup, in the spring we had the heater core replaced, now it's leaking again. What could be the issue this time?

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Some heater cores are poorly manufactured. it is possible some damage occurred at the time of installation. incorrect coolant could cause a premature failure(would probably take more than 6 months). also the heater hoses get stuck to the core tubes, and during replacement the hoses often get cut and shortened causing tension on the fittings, or plastic core tanks.

Posted on Dec 18, 2008

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IT could be who ever did it did not even change it they might of just patch back the same one, yet I might be wrong but I see it happen already.

Posted on Dec 18, 2008

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f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
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