Ray-
Not a hard job at all, I completed it in a little over an hour using Volvospeed's guide and photos. The hardest thing for me was getting to the bolts on the flange of the Check Valve. I have huge hands which always make engine compartment repairs interesting! Ended up basically laying across engine to get the right angle to reach the bolts. I did not replace the relay, mine was a bad bearing due to water intrusion.