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

91 heat problem

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Old Jan 14, 2018 | 04:40 PM
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Default 91 heat problem

My heat doesnt work the blower motor works but its just cold im pretty sure theres no sensor on the heater core hose that can be bad like the other cars cold it be the recycled air flow vent/flap that is stuck open to fresh air why else would i not be getting heat i haveny checked my heater core but it cant get completely clogged can it.
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Old Jan 14, 2018 | 05:10 PM
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When the car's up to temp, are your heater hoses hot? If not, you're not getting flow thru the core, so it's either the valve or another obstruction.
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