while still waiting for my otc scanner to come in I went out and was going to check some more things turned key on and wait to start light came on glow plugs heated and truck started like nothing was ever wrong truck is running fine let it idle for about one and a half hour it is 79 degrees here are there an ambient temp sensor on this truck and where is it

 

That is 1 crazy stroke for sure. I wonder if removing that fuse (if you did) didn't clean off some oxidation and let full contact happen. No ambient temp switch, just the oil temp sensor on backside of HPOP reservoir. Due to the multitude of cold start problems with strokes, I have always tried to advise my customers to use the blockheater whenever ambient is below 40 while at home and save the glowplug system for when at work or in field. That saves batteries, starter, & glowplugs themselves for when truly needed. Use a timer with 15 amp capacity to come on3-4 hours before leaving. Replace your relay yearly & purchase the relay from Navistar dealer instead of Ford and save around 50-60$. Pt# 1831646C2. Good luck.

 

well the temp outside dropped to 28 over night and the problem returned no wait to start light, glow plugs wont heat, and have only 10.9 volts on signal wires to relay water in fuel and other lights come on when you turn it over to start suppose to get my scanner in tomorrow hope to find a code to explain it anyone have any ideas forgot I have 12 volts on positive wire when grounding negative to engine block

 

Am starting to think you may have a ground problem somewhere. Might want to remove ground cables from block, clean surfaces and make sure you use star washers between cable lug and bolt or nut, if not already there. I think grounds go on studs at each front bottom corner of block.

 

just tried to scan my truck but keep getting link error do you think my computer is bad grounds are good