truck runs hot even with thermostat out. No heater output also, indicating a coolant flow problem. Visual check of water pump flow on warm engine is good. Does this 4.7 engine have history of head gasket problems or could the factory water pump impeller be sli...

FIX posted 10/23/2005

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle