Troubleshoot the AC action in your Two thousand Oldsmobile Alero.
Problems with your Alero's air conditioning are quite incomplex to diagnose, if it be an problem with the Attractive clutch or a blown fuse. Before enchanting your vehicle to a mechanic for what could be an expensive analysis up and repair, there are a rare basic troubleshooting steps you can bound finished on your own.
Instructions
1. Trial the fuse box at the left of the sprint board in the Two thousand Oldsmobile Alero for any blown fuses. Construe the directions on the inside incorporate of the fuse box on set the fuse connected to the AC manner. Whether the metal wire inside the fuse is damaged, alternate it with another of the exact corresponding amperage.
2. Turn on the electric fan and the AC with the engine running to gape provided the controls are damaged in any behaviour. Modify the dials, provided needed. Provided the fan does not turn, it could stop to a blown fuse, or the fan itself may bear burned away.
3. Trial for any oily refrigerant residue on the AC hoses. Carry the hoses replaced whether you mark leakage.
4. Establish the AC and electric fan up to the highest setting with the engine running. Glimpse under the hood to beam provided the Attractive clutch attached to the AC compressor engages. Provided it does not engage, the transaction may be low on refrigerant. Acquire a mechanic moderate the refrigerant for you. A compressor that is excessively noisy may obligation to be replaced. The Attractive clutch may committal to be replaced if it is receiving voltage but still not engaging the compressor. If there are leaks around the compressor shaft seal, the seal should also be replaced.
5. Test the AC system for adequate pressure. Attach the AC compression gauge with the engine off. Remove the black caps on the low and high side service ports on the AC unit. Screw the blue hose to the low-side service port and the red hose to the high-side port. A normal reading should be between Fifty and Eighty PSI. However, one should be noticeably cooler than the other. If it is not, the valve control may need to be replaced. Have a qualified mechanic do this for you. The firewall is the metal partition between the engine compartment and the passenger compartment and extends from below the windscreen to beneath the engine.
If the reading is not within this range, have a qualified AC mechanic investigate further for you.6. Start the engine and check under the hood for the two AC hoses near the firewall to see if they are warm.
