in tanvirs but
The overdrive relay on a 1985 Chevy Corvette with a 4+3 transmission is typically located in the engine compartment. Specifically, it can be found near the driver's side fender, mounted on the relay center or in a bracket attached to the fender. If you're having difficulty locating it, consult the vehicle's service manual for detailed diagrams and instructions.
on mine its behind the stereo....
I just changed Mine just recently,,1985 corvette fuel pump is in the fuel tank,
behind passenger dash pad
it is behind the battery on the fire wall.
The fuel pump relay on a 1985 corvette is mounted on the firewall under the hood on the driver side. Just to the right of the wiper motor.
passenger side behind front tire, can't miss it.
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You asking about a Corvette or S-10 pickup?
On a 1985 Chevy Celebrity the mass air flow sensor relay is located on the strut tower on the drivers side of the car. It is behind a cover. The fuse for the mass air flow sensor is also there with the relay.
I doubt any 1985 car had a computer in it.