So full disclosure; Had a few misfire codes pop up on OBDII scan tool a few weeks back. Research showed that is was misfire faults. Initially I felt that it was a coolant leak from valley (lower intake) gasket. Did the repair, disassembling the engine and replaced both upper and lower intake gaskets and finishing the repair properly after a few days. Started the Range happy to hear that the misfires were gone. Unfortunately that was short lived seeing as a mile down the road it started again and I did have the overheat light come on. Parked it immediately at my house after only three miles and 1/4 mile with light on. Now while draining coolant today to do a head gasket job I find aluminum shavings in the coolant 1/16"th x 1/4" x 1/4". For the sake of looking stupid I believe it may be a water pump faliure but don't want to push any valid ideas away. So what do you think? Anybody seen this before? Thank You for your help...again.