C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

1990 heater core

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Old Apr 11, 2008 | 08:18 PM
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waupungk1's Avatar
waupungk1
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From: waupun wi
Default 1990 heater core

OK i just looked at some threads on heater cores. The 85-89 i guess are a pain in the rear, but the 1990s are too bad. Could anyone give me a really quick run through on how to replace it? thanks
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Old Apr 11, 2008 | 11:29 PM
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johnnyevans
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From: Thomson Georgia
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Open door, take passenger seat out
Take glove box and door off
Remove knee bolster and supports
Take lower dash frame support bolts out
Take console dash cover loose
Take lower console dash support bolts loose
Take 1/4 socket and extension take bolts out of heater cover
Carefully pry right side of dash up and remove heater cover
While still pryed...
Remove heater core, you did remember to drain water and take the hoses loose right?
Reverse the above.
When you start removing cover and core, you'll see why you took the glove box out
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