finally took the truck in after i couldnt get it started, and had to tow it in. Now, a week later i am told that it was a relay that was faulty and that was the reason for the mis-starting. So my starting issue was due to a relay and not battery or fuel filter/pump which i thought would be the cause.

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" Despite its supercar attributes, the M5 still doubles as a soberly practical, spacious saloon - only with the ability to scare four passengers in comfort all the way to the local coronary unit". Top Gear