1996 Cadillac DeVille Q&A

1996 Cadillac DeVille Question: Is it common for the plastic heater core box on the firewall to disentegrate?

I started smelling burning plastic from the engine compartment then I discovered the plastic housing is disentegrating due to engine temperature exposure. Bit of plastic are contacting the exhaust manifold. Is there a solution? -
Answer 1
yeah,one of the downfalls of GM products,the crumbly plenum box.just have to get a new one. -
Answer 2