Definitely start with glowplugs, then the slow starting issue is due to over use of the starter you are simply wearing out your starter which may be the original unit. I bought my 2003 7.3 F250 in 2010 It was a fairly high mile truck with 260,000 miles but in good condition and a 7.3. I have...
I have never used anything but Amsoil, Wix, or Donaldson oil filters. Never any ill side effects and my 7.3 has 375,000 + miles on it. Be sure to top it off with a good quality oil (I use only Amsoil synthetic). I would never go to an oil change shop. Do you really know what they are servicing...
Hi I don't know how I missed this website but from Georgia I own a 2003 F250SD with a 7.3. I bought it in 2010. My ride has 371,675 miles on the clock and still runs great, hope to double that.