The suicide doors question comes from a trip to Home Depot a couple years back; I saw a guy load the bed of his truck (probably a 2007 or so, Access Cab) with lumber, and then stuff a few kitchen cabinets into the rear seat area. But the cabinets were too big to fit properly, and rather than just set one in the bed on top of the lumber, strap it down, and shut the doors, this genius opted to run a bungee from door to door to hold them closed. Made me wish I had a smart phone, because the driver's rear door was stretched to the stop from wind resistance just leaving the parking lot; I can't imagine what they did once he got onto the road....
And the ebrake question comes from years of driving older trucks in the rust belt; the pivots on the rear drums rust and freeze, and then the e-brake doesn't release. The light might not be on, because the pedal springs all the way back up (thereby contacting the switch and shutting off the light), but the brakes are still dragging.
but thanks for the questions anyways.. cause i also did just change the spark plugs OEM ones, and cleaned the intake sensor (did not touch) and cleaned the throttle body best as i could, and dumped some sea foam fuel cleaner in the tank.. i thought may a fuel filter be clogging up?