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2002 Ford Expedition Over heating

Tiny
STEVENSANFORD
  • MEMBER
  • 2002 FORD EXPEDITION
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 400,008 MILES
I have a ford expedition 2002 4.6 two wheel drive it started to run hot one day and it would go up to hot and go back to cold all in a matter of min well it done that for a few days and just stopped and but I changed the thermostat any way and like I said it quit but it started back after I took it on a 4 hr trip and o done fine up their and 4 hrs back but when I got back the next day it starts to do it again so I took the thermostat out and it just barley helped it but it still was doing it and the whole time it had coo lent I'm it I don't know ways the prob I think my water pump may b going out? Or wat
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Saturday, August 1st, 2015 AT 2:41 PM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check radiator for cold spots wen hot if it has any it's bad then have coolant system pressure checked for internal leaks.
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Monday, August 3rd, 2015 AT 7:55 AM
Tiny
STEVENSANFORD
  • MEMBER
  • 5 POSTS
Will a blowed head gasket make it do that to go to hot then back to cold
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Monday, August 3rd, 2015 AT 10:06 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Most of the time no but have it checked anyhow. I doubt it 's a water pump. It could be a cooling fan if you have an electric one. It may not be working so check fuses and relays under hood for it.
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Monday, August 3rd, 2015 AT 10:15 AM
Tiny
STEVENSANFORD
  • MEMBER
  • 5 POSTS
I have seen the fan kick on and off so I don't think it's the fan
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Monday, August 3rd, 2015 AT 12:21 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check what I said then the radiator
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Monday, August 3rd, 2015 AT 12:54 PM

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