its getting pretty cold outside and heater is blowing cold air lol wtf? does n e body suggest anything?

also does n e one have a good site to buy parts for a ls400 i need a control arm and does ne one no how much they run 4?

i just put me a K&N intake and i dont no should i leave it open or should i close like as if it was never modifyed whatz better?

 

its blowing cold after after the car has warmed up?

 

Check your heater control valve and make sure it's opening when the heat is turned on.

 

yes its cold after the car is warmed up

sometimes it blows warm not hot but warm air only at the second speed anything higher it will b cold again!