muddycowboy
BERR
ok i'll try that. it wasnt like i was loosing boost it just seemed that once the IAT raised to operating temp the computer would not let the truck boost. (like if i was cruising along 40 mph mashed the petal to the floor rpm way up still no boost, but if the engine was cool i could turn out the drive mash it and the boost would jump to 13-15 and would slowly come down as i gained speed and wouldnt drop out till i let off the pedal.) im almost positive i dont have a cracked line cause i just replaced quite a bit of it not to long ago. (broke it in half replacing the water pump.