Engine Performance problem
2001 Chevy Suburban V8 Two Wheel Drive Automatic 125000 miles
Car fires up and dies immediately. Sounds normal at start but quickly loses RPM's and stalls. I have already replaced the fuel filter and fuel pressure regulator. Also cleaned the IACV and throttle body.
Hi oldvtec, Welcome to 2carpros and TY for the donation
Check the fuel pressure if its withn specs if okay -test the fuel pump relay if okay-test the fuel pump and oil pressure sending unit-this one here powers the fuel pump after the engine starts okay here also could be coming from the ignition switch it fires on cranking position when you let go the key it dies out-due to an open ignition circuit from the switch or wire to the coil