i have an 05 tahoe 4.8 and i recently cleaned the throttle body with crc. after i put the intake back together and went to start the truck all it did is turn over and not turn on. after about a min of turning over it turns on but barely, it wants to die. after running for a couple of mins it turns on no problem but sitting for half hour or so it takes a min or so to turn on and when it does it revs really high then dies down. any help would be appreciated