2005 6.0 sometimes no hot start
Please bear with me on this one.
A buddy of mine called me yesterday. He told me he had a hot, no start issue. I told him it was probably just an oil leak and I explained to him the symptoms and the cause. He replied back with "It only does the hot no start sometimes." He told me the truck has to sit for about 3 hours before it will fire up again, or if he puts jumper cables on the battery it will fire up right away. He tells me that there is no cranking rpm difference with our without jumper cables. I was also told the batteries load tested fine.
Sorry I am vague and open on this situation. I haven't Had a chance to go check it out for myself yet, and my friend doesn't have a scanner to plug into it and read live data. I have seen lots of hot no start problems, but I think this is the first hot, sometimes no start issue I have heard of. I told him to check all of the battery connections and make sure they are clean and tight.
Anybody have any advice, or have seen this problem before. Your input is welcome. Thanks.