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Cooling Fan Issues

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Old Sep 9, 2020 | 02:42 PM
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SCVFL's Avatar
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From: Aiken, SC
Car: 1992 Z28 Heritage Edition
Engine: 5.0 tpi
Transmission: Manual
Cooling Fan Issues

I recently replaced my fuel injectors and after putting everything back together, noticed my cooling fans are not running. Does anyone know if there is a plug/connection I might have missed when reassembling? The switch on the passenger side manifold is plugged in and the fans do not come on when I turn on the AC. 92, 5.0, TPI. Thanks in advance.
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Old Sep 9, 2020 | 02:44 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
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Re: Cooling Fan Issues

Cts hooked up ? Any error codes 15 ?
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Old Sep 9, 2020 | 02:55 PM
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Re: Cooling Fan Issues

Here's the schematic for the fan control... Coolant sensor would only impact the primary fan since the ECM only controls the primary fan.

If neither fan turns on, my main suspect would be either the fuse on the brown wire or possibly somehow the orange wire to the battery got disconnected and not reconnected?

Those two circuits are really the only two that both fans have in common.

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