birdizzo

I had a similar issue also. I have a new battery that I replaced in early November, it was 5 years old, the original. Early Feburary during the bitter cold here in WI, I had a 1/4 tank of gas, -15 degrees, and when I tried to start the Suburban it just freaked out, dashboard lights flashed for a moment and no crank. 3 or 4 tries later I got the same results. I pulled the Range Tech V4 Disabler I had installed in the ODB port, tried cranking again and it worked.... I did hear a noise this time in the rear that sounded like a Fuel pump running. I have not put the v4 disabler back since this happend, and I have not seen it happen again. I'm going to inspect my 175 amp Fuse this weekend.