well, in case anybody cares, when i took it to the dealer the service rep says its normal, but i called BS on that, and I was right. Now after 4-5 months finally figured out the problem.
My alarm/starter monitors the brakes by being hooked up to the brake switch on the pedal. When the truck is off, the alarm is working and there is solme leakby from the alrm over to the brake switch wire, which from there probably goes into the solenoid or computer or whatever, which makes the thing pulse.
The solution, for now i cut the brake monitoring wire, and this weekend will diode isolate it.
a happy ending, i hope no damage was done to anything thus far.
