P0316 Ford -

Question

po300/301/306 & 316 is this all do to bad intake manafold on 03 town car

Answer 1

P0316 Misfire detected on start up

P0300 Random misfire

Misfire at first startup detected can be from the intake manifold gasket ,  You will need to rule out other possible cause like ignition coil  and the sparkplug that there is no oil seepage in the sparkplug well.