Yea, you could also get the doorman and it's fairly cheap. It's quick and dirty; unbolt UIM install stove pipe and o-rings, bolt the new UIM on and go down the road. It's alot cheaper than a new motor. Run it until it spins a bearing. You should also check the oil for coolant contamination, not due to the UIM but the LIM. Like these guys said once you have the UIM off you may want to do the LIM also.