All of a sudden my 2001 Bounder is erratic when the key is turned on. Sometimes all the lights and buzzers go on as expected and it starts no problem, other times when you turn the key nothing...no lights, no buzzers, nothing. Hit the aux switch and it fires right up and you would think that it's a main battery issue, but it is charging as it should (14-15 on the dash) and my hand held tester is showing 12+ volts at the poles. Also, when it works properly there is no hesitation at all in starting that would indicate a dieing battery. Connections are all tight and all the relays seem to be tight and good.
This is the F53 chassis with the Triton V10. Any thoughts?