Wireing Diagram Fule Pump Relay1985 Corvette

By | June 18, 2023

Wiring Diagram Fuel Pump Relay 1985 Corvette

The fuel pump relay in a 1985 Corvette is located under the hood on the driver's side, near the firewall. It is a small, black box with three terminals. The large terminal is for the battery power, the small terminal is for the fuel pump, and the center terminal is for the ignition switch. To test the fuel pump relay, you will need a multimeter. First, disconnect the negative battery cable. Then, locate the fuel pump relay and remove it from the vehicle. Using the multimeter, set the dial to ohms and connect the positive lead to the large terminal and the negative lead to the small terminal. The multimeter should read a resistance of zero ohms. If the multimeter does not read zero ohms, the fuel pump relay is bad and needs to be replaced. To replace the fuel pump relay, simply disconnect the two wires from the old relay and connect them to the new relay. Then, install the new relay in the vehicle and reconnect the negative battery cable. Here is a diagram of the fuel pump relay wiring for a 1985 Corvette:

## Symptoms of a Bad Fuel Pump Relay There are a few symptoms that can indicate a bad fuel pump relay in a 1985 Corvette. These include: * The engine will not start or will start and then stall. * The engine will run rough or hesitate when accelerating. * The check engine light may be on. * There may be a fuel smell in the cabin of the vehicle. If you are experiencing any of these symptoms, it is a good idea to have the fuel pump relay checked by a qualified mechanic. ## How to Replace the Fuel Pump Relay in a 1985 Corvette Replacing the fuel pump relay in a 1985 Corvette is a relatively simple task that can be completed in about 15 minutes. Here are the steps involved: 1.

Locate the fuel pump relay.

The fuel pump relay is located under the hood on the driver's side, near the firewall. It is a small, black box with three terminals. 2.

Disconnect the negative battery cable.

This will prevent any electrical shorts from occurring while you are working on the fuel pump relay. 3.

Remove the fuel pump relay.

To remove the fuel pump relay, simply grasp it firmly and pull it straight out of its socket. 4.

Install the new fuel pump relay.

To install the new fuel pump relay, simply insert it into its socket and push it firmly until it clicks into place. 5.

Reconnect the negative battery cable.

This will restore power to the fuel pump relay. Once you have replaced the fuel pump relay, start the engine and let it run for a few minutes to make sure that the problem has been resolved. If the engine starts and runs normally, then you have successfully replaced the fuel pump relay. ## Conclusion The fuel pump relay is an important part of the fuel system in a 1985 Corvette. If the fuel pump relay fails, it can cause a variety of problems, including the engine not starting or running rough. If you are experiencing any of the symptoms listed above, it is a good idea to have the fuel pump relay checked by a qualified mechanic.


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