Hood Air Door Test
Thread Starter
Pro
Joined: Jun 2014
Posts: 705
Likes: 96
From: Ventura County CA
Hood Air Door Test
On my '74 there is a door in the hood that opens with wide open throttle for cold air to enter the top of the air cleaner.
Is there a way to test the operation of this door? Should it open with WOT if the engine is not running but the ignition in run.
Is there an interlock I need to bridge to make the door open with WOT and the ignition in run?
Thanks
Is there a way to test the operation of this door? Should it open with WOT if the engine is not running but the ignition in run.
Is there an interlock I need to bridge to make the door open with WOT and the ignition in run?
Thanks
Burning Brakes
Joined: Mar 2013
Posts: 1,018
Likes: 582
From: West Monroe Louisiana
2023 C3 of the Year Finalist - Unmodified
On my '74 there is a door in the hood that opens with wide open throttle for cold air to enter the top of the air cleaner.
Is there a way to test the operation of this door? Should it open with WOT if the engine is not running but the ignition in run.
Is there an interlock I need to bridge to make the door open with WOT and the ignition in run?
Thanks
Is there a way to test the operation of this door? Should it open with WOT if the engine is not running but the ignition in run.
Is there an interlock I need to bridge to make the door open with WOT and the ignition in run?
Thanks
hood and the unit setting on the air filter at the time and was easy to see.
Donnie
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
I don't have a '74 Chev Chassis Service Manual. But, I suspect there is some interlock on that door that is dependent on the engine being up to temp. (Temp switch/relay also in that circuit?) You just need to see the wiring schematic for that door operation.
