OEM 2009 Chevrolet Silverado 1500 Alternator

2009 Chevrolet Silverado 1500 Alternator Parts and Q&A

• Q: How to replace the alternator in a 4.3L engine on 2009 Chevrolet Silverado 1500?

  A: Before changing a generator in a 4.3l engine, you have to disconnect the negative cable of the battery. Remove the air cleaner outlet resonator and belt drive. Remove the A/C Compressor/condenser hose bracket bolt and loosen the clip that holds the engine wiring harness onto the A/C Compressor/condenser hose bracket. Next, remove the heater outlet hose clamp bolt bolt at the generator bracket as well as remove the engine wire harness electrical connector from the generator. In response, you repose the engine wiring harness boot and eliminate the engine wiring harness nut and lead from the generator. Unbolt the generator and move the heater outlet and a/c hoses accordingly to pull out the generator from the bracket. During installation, mount the new generator into the bracket, set the hoses and bolt the generator to the bracket with 50 nm (37 lb ft) (Turney, DiFazio, Thompson, n.d.). Reinstall the engine wiring harness lead and the nut putting the nut on 9 nm (80 lb in), then bringing the wiring harness boot over the generator stud and connecting the electrical connector. Install the heater outlet hose clamp bolt by tightening it to 25 nm (18 lb ft), followed by the A/C Compressor and condenser hose bracket bolt tightened to 25 nm (18 lb ft). Reattach the engine wiring harness clip, as well as the Drive Belt and the air cleaner outlet resonator. Finally, reconnect the negative cable of the battery.