Engine Cooling problem
1994 GMC S15 6 cyl Four Wheel Drive Manual 211000 miles
I recently had my intake manifold gasket replaced, and then my water pump went bad. The truck was running fine when I brought it to the mechanic and I got about a mile down the road and coolant started spraying from the water pump as soon as the system started heating up. I replaced the pump and thermostat myself and the engine still overheats. What's the next step?