My GC was in a crank no-start condition. After replacing the starter (don't ask), fuel pump, and adding a fused fuel pump relay bypass wire the van starts when it's warm but when it's cold it will crank but not start. Plugging in the block heater seems to help for now but colder weather is coming and I can't always plug my van in. I'm drawing blanks on what to do next. Is it a bad TIPM? Can I desolder the fuel pump relay and solder in a new one? Are there other gremlins at play? The new/used vehicle market is still nuts, so replacement isn't ideal at this time.