To find the AC compressor relay, you'll need to consult your vehicle's repair manual or a wiring diagram specific to your 1995 Pontiac Transport. The location varies depending on the model's configuration. Relays are often found in under-hood fuse boxes or even inside the passenger compartment fuse boxes.
Troubleshooting Steps:
1. Check the AC system: Make sure the AC is turned on and properly set. A problem with the AC system itself can prevent the compressor from engaging, even if the relay is working.
2. Listen for the compressor clutch: When the AC is on, listen near the compressor for a clicking sound. If you don't hear it, the problem is likely with the compressor clutch, the relay, or the wiring.
3. Locate and inspect the relay: Use your vehicle's manual or an online wiring diagram to find the AC compressor relay. Visually inspect it for any signs of damage. You can often swap it with a similar relay (same amperage) to test if it's faulty. If swapping doesn't resolve the issue, the problem lies elsewhere.
4. Check for power at the compressor: You may need a multimeter to test for power at the compressor's wiring connector.
Since there isn't a direct fuse, relying on a repair manual or a reliable online resource with wiring diagrams for your specific model year and trim level is crucial for successful troubleshooting.
