on a 1997 Chevy Astro it is in a fuse-relay center - in a plastic box located just to the left of the battery. Take off the top; the schematics of what's what should be on the inside top of the box, as well as in your owner's manual.
under the hood
Yes.
On the firewall, passenger side.
rear drivers side engine block
It is located on the brake pedal arm under the dash.
The coolant fan relay on a 1988 Chevy Celebrity with 2.8L V6 is on the radiator support bracket behind the right hand headlights.
On a 1988 Chevy G-20 Van, the horn relay is typically located in the engine compartment, mounted on the inner fender or near the fuse box. It may also be found in the relay center, which is often located near the battery. It's best to consult the vehicle's service manual for the exact location and identification of the relay.
1.6.5.4.3.2
You can add power steering fluid to your 1988 Chevy Astro by removing the top to the power steering fluid reservoir. Pour the fluid directly into the reservoir.
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You can locate the chassis number of a 1988 Astro van on the driver's side door.
On a 1988 Chevy Van, the horn relay is typically located in the under-dash fuse box, which is found on the driver's side of the vehicle. It may also be mounted on the firewall or near the battery, depending on the specific model and configuration. You can identify the horn relay by referring to the fuse box diagram, which indicates the location of various relays and fuses.