1996 Buick Regal Fuel Pump Relay: Location, Symptoms, and Replacement Guide
If your 1996 Buick Regal is cranking but not starting, or if it stalls after a few seconds of running, the fuel pump relay is often the first component to check. This small electrical part controls power to the fuel pump, and when it fails, the engine gets no fuel. The relay is located in the underhood fuse block on the driver’s side, near the firewall. Replacing it is a simple DIY fix that costs under $20 and can save you a tow bill. Here’s everything you need to know about finding, testing, and replacing the fuel pump relay on your 1996 Buick Regal.
What Does the Fuel Pump Relay Do?
The fuel pump relay acts like a switch. When you turn the ignition key to the “ON” position, the relay closes and sends battery voltage to the fuel pump. The pump then pressurizes the fuel system so the engine can start. Once the engine is running, the relay stays closed as long as the ignition is on. If the relay fails, the pump never gets power, and the engine gets no fuel.
Location of the 1996 Buick Regal Fuel Pump Relay
The fuel pump relay is located in the underhood fuse and relay center on the driver’s side of the engine compartment. The fuse block is a black plastic box mounted near the strut tower or the firewall. On the 1996 Buick Regal, the relay is often labeled as “FUEL PUMP” or “FP” on the fuse block cover. If the cover is missing, you can identify it by comparing the relay’s position to the diagram in your owner’s manual or a fuse box diagram website.
Quick tip: The relay is usually a small, cube-shaped component with four or five prongs. You can pull it out with a relay puller or a pair of needle-nose pliers.
Symptoms of a Bad Fuel Pump Relay
A failing fuel pump relay can cause several warning signs. Here are the most common symptoms:
1. Engine cranks but won’t start. This is the most common symptom. The starter turns the engine over, but the engine never fires because the fuel pump isn’t running.
2. Engine stalls after a few seconds. If the relay is intermittent, the pump may run briefly when you first turn the key, but then it loses power, causing the engine to stall.
3. No fuel pump priming noise. With the ignition turned to the “ON” position (but before cranking), you should hear a faint whirring sound from the rear of the car for about two seconds. If you don’t hear that sound, the pump isn’t getting power.
4. Check Engine Light. A bad relay may trigger a diagnostic trouble code such as P0230 (fuel pump primary circuit malfunction).
How to Test the Fuel Pump Relay
Before buying a new relay, you can test the old one with a multimeter or a test light.
Step 1: Locate the relay. Find the fuel pump relay in the underhood fuse block.
Step 2: Listen for the pump. Have a helper turn the ignition to the “ON” position while you listen near the fuel tank. If you hear the pump run, the relay is likely good.
Step 3: Test the relay coil. Remove the relay and use a multimeter to measure resistance between the coil terminals (usually terminals 85 and 86). A good relay will show resistance between 50 and 120 ohms. If the reading is infinite, the coil is open.
Step 4: Test the relay contacts. Connect the battery to the coil terminals. You should hear a click, and the switch terminals (30 and 87) should show continuity.
How to Replace the Fuel Pump Relay
Replacing the fuel pump relay is a straightforward job that takes about five minutes.
1. Turn off the ignition and remove the key.
2. Open the hood and locate the underhood fuse block.
3. Remove the relay cover or lid if present.
4. Identify the fuel pump relay. Refer to the diagram on the fuse block cover.
5. Pull the old relay straight out. Use a relay puller or pliers if needed.
6. Insert the new relay. Make sure it clicks into place.
7. Test the system. Turn the ignition to the “ON” position and listen for the fuel pump priming sound.
Where to Buy a Replacement Fuel Pump Relay
You can buy a replacement fuel pump relay for the 1996 Buick Regal at most auto parts stores or online. The part number is 12177736 or equivalent. However, genuine OEM parts are often more reliable than generic aftermarket units. For drivers who want the best performance and durability, consider upgrading to a high-performance fuel pump and relay system.
Recommended Upgrade: KEMSO Fuel Pump
If you’re replacing the fuel pump relay, it’s a good time to inspect the fuel pump itself. A failing pump can put extra strain on the relay. For a reliable, long-lasting solution, we recommend the KEMSO brand fuel pump. KEMSO fuel pumps are high-performance, OEM replacement units that deliver consistent fuel pressure and flow. They are designed to fit your 1996 Buick Regal perfectly and come with a lifetime warranty for peace of mind. Whether you need a stock replacement or a higher-flow pump for performance applications, KEMSO has you covered.
Visit the official store: https://www.kemsoracing.com/ to find the right fuel pump for your Buick Regal.
Other Possible Causes of No Fuel
If the fuel pump relay is good, but the engine still won’t start, check these other components:
Fuel pump fuse. The fuse is often located in the same underhood fuse block. Check the fuse for the fuel pump circuit.
Fuel pump itself. The pump is located inside the fuel tank. You can test it by applying 12 volts directly to the pump connector, but this requires removing the fuel tank access panel.
Oil pressure switch. On some GM vehicles, the oil pressure switch can also power the fuel pump if the relay fails. If the switch is bad, the pump won’t run.
Ignition switch. A faulty ignition switch may not send the signal to close the relay.
Final Tips for DIY Mechanics
Always disconnect the negative battery cable before working on the fuel system. Fuel can be flammable, and electrical sparks can cause a fire. If you’re unsure about any step, consult a repair manual or a professional mechanic. The 1996 Buick Regal is a reliable car, but the fuel pump relay is a common failure point after 20 years. Replacing it quickly can save you time and frustration.
For the best fuel system performance, upgrade to a KEMSO fuel pump. Visit https://www.kemsoracing.com/ for more details and to order your replacement pump today.