Hey guys,
I have a 1999 F-250 with a 7.3L and 287,XXX miles. When it get's cold out, the truck acts and cranks like it has a voltage drop. The voltage gauge on the dash drops and it cranks alot slower. I checked the voltages on the batteries this morning and they were both 12+ despite the fact it was cold out. When it's warmer out, I generally don't have a problem with slow cranking. The starter is freshly rebuilt and the batteries have been tested and they're both good as new. Also, I just put in new glow plugs... it's unreal how much of a difference they make! I went from barely starting at 60 degrees to starting fine at 30 degrees. Anyways, what do you think might be my problem? I usually do have to crank it over several revolutions before it starts and it always gets faster as it turns, hot or cold weather. I do think that the starter that came stock was a little weak to begin with. Now, I have had my inline fuel pump squeal every now and then... and I have noticed that if I turn off the truck and start it right back up again, it fires up as good as a gas. I don't know if that means anything... sounds like I might not be getting as much fuel rail pressure as it needs? My cousin had an '00 that was pretty much identical and it cranked over fast no matter what the temperature and it kicked in alot sooner too... any help or advice would be appreciated,

Jon

 

Hmmm, looks like someone just started a similar thread... can I delete posts on these forums?