Need help! Blazer keeps stalling / dieing randomly????
#16
okay, i took it for a drive tonight and it stalled on me twice. it will run for a minute or so before it shuts off. i dont know the exact code, but i installed the new icm and it is continuing to die, engine light off now, i dont know what to do next besides check fuel pressure which i will do tomorrow morning.
#17
Without setting a DTC in memory when the problem occurs, it usually means the problem is probably not something that the PCM monitors. The fuel delivery system is one of them. In the video that you posted, it appeared that it took a bit of cranking to get it going, which could indicate a problem with the fuel pump not building pressure immediately when its activated. To check it, connect the fuel pressure tester to the service port next to the distributor. Somewhere near the power brake booster there should be a red wire with a terminal on the end, not connected to anything. This is the fuel pump prime circuit and goes directly to the fuel pump. Connect a fused jumper wire to battery positive and touch the red wire several times while paying close attention to the needle on the tester. It should build pressure immediately each time the pump is activated. While the pump is running, pressure must be 60psi to 66psi. When you remove the wire, pressure must remain above 55psi for at least 10 minutes. Check this out and post your results.
#18
Without setting a DTC in memory when the problem occurs, it usually means the problem is probably not something that the PCM monitors. The fuel delivery system is one of them. In the video that you posted, it appeared that it took a bit of cranking to get it going, which could indicate a problem with the fuel pump not building pressure immediately when its activated. To check it, connect the fuel pressure tester to the service port next to the distributor. Somewhere near the power brake booster there should be a red wire with a terminal on the end, not connected to anything. This is the fuel pump prime circuit and goes directly to the fuel pump. Connect a fused jumper wire to battery positive and touch the red wire several times while paying close attention to the needle on the tester. It should build pressure immediately each time the pump is activated. While the pump is running, pressure must be 60psi to 66psi. When you remove the wire, pressure must remain above 55psi for at least 10 minutes. Check this out and post your results.
#20
I've been called worse names