Bit of an odd question??
Only reason I'm asking is on the last drive I went out on the car hot while at speed but cooled down when it was at an idle. Up until now the cooling system has been flawless.
There's no air in the system. I haven't seen any white smoke from the exhaust. No drips that I've noticed from the weep hole on the pump. It pressures up and holds. No coolant in the oil either. And none coming out when spark plugs are removed
I checked out my brother's car (94 Mustang SBF) and his coolant is moving quickly thru the system when viewed with the cap off.
So do I just have a bad water pump?? What do y'all think?? Thanks guys








