1988 - 1998 (GMT400) Section for all discussion related to the 1987-1998 Chevrolet and GMC trucks.

1988 chevy part identify

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Old Feb 6, 2019 | 9:07 PM
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toastyorange's Avatar
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Default 1988 chevy part identify


can someone please tell me what this is circled in red? thanks
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Old Feb 6, 2019 | 9:51 PM
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looks like a heater water valve
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Old May 12, 2019 | 3:49 PM
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Default Vacuum actuator that closes the heater bypass.

Vacuum actuator that closes the heater bypass.
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