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2003 E350 7.3 diesel. Engine overheats at speeds over 60-

Customer Question
2003 E350 7.3 diesel...

2003 E350 7.3 diesel. Engine overheats at speeds over 60- mph.

Mechanic's Assistant: Have you checked the coolant? Have you checked for a leak in the cooling system?

Yes recently replaced water pump, timing cover due to cavitation, radiator, cap and hoses.

Mechanic's Assistant: Are you fixing your E350 yourself? What have you tried so far?

Yes see previous message

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

No noticeable cooling system problems. no air bubbles in d gas bottle

Submitted: 8 months ago.Category: Ford
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Answered in 16 minutes by:
12/12/2017
Ford Mechanic: Gabriel Grey, Auto Service Technician replied 8 months ago
Gabriel Grey
Gabriel Grey, Auto Service Technician
Category: Ford
Satisfied Customers: 451
Experience: Master Service Technician
Verified

Good afternoon, I hope you are doing great. My name is***** would be happy to assist you with this today.

​When the water pump was replaced did they also replace the thermostat?

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Customer reply replied 8 months ago
no
Customer reply replied 8 months ago
engine temp at idle and normal in town speeds is in center of temp rangr
Ford Mechanic: Gabriel Grey, Auto Service Technician replied 8 months ago

A​lright I would recommend replacing the thermostat at this point, it may have developed a blockage, or it is unable to keep up with the output of the new water pump. Since it only overheats under a load it should not be a radiator/air issue

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