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This has probably been discussed, but I can't find anything quite like it...
My 99 PSD is getting slower and slower to start. It cranks like it is hesitating then finally starts, no extra smoke or strange sounds. Both batteries are about 5 months old (Diehard 875cca). When checked the batteries both show 12.5 when seperated and together. When the truck is running they show in the 14's (joined together still). It does not seem to matter cold or hot, and once in a while it cranks fast and starts right up. Any ideas....confused...