2008 6.4L F350 Thermostat Replacement
#1
2008 6.4L F350 Thermostat Replacement
I know this is not a popular topic as I found only one thread in almost 3,000 and it simply stated that doing it is a PITA. However, I am determined, and in the absence of a Haynes Manual am turning to the Forum for help.
I am of the understanding that there are 2 thermostats in the cooling system, and that they may have 2 different temperature ratings. Where they are located, what additional parts / tools I may need to replace them is my biggest question. As I use my truck for work, I cannot afford to have it down while I hunt for parts, etc.
If you could please provide photos, they would help me immensely as I am not wholly familiar with the lingo used in this forum.
Thanks for your help!
I am of the understanding that there are 2 thermostats in the cooling system, and that they may have 2 different temperature ratings. Where they are located, what additional parts / tools I may need to replace them is my biggest question. As I use my truck for work, I cannot afford to have it down while I hunt for parts, etc.
If you could please provide photos, they would help me immensely as I am not wholly familiar with the lingo used in this forum.
Thanks for your help!
#2
I don't really know the answers but yes there are two thermostats, one opens first at a lower temp setting.
I would assume they will be labeled when you buy them and if you note the differences you should be able to match them up upon taking the old ones out.
You should also replace the upper hose at the same time. Those are quick disconnect type hoses on there. Orginal ones only had one 0-ring for sealing. New one has two o-rings.
114 ftlbs is there torque specs for the thermostat housing.
I am thinking that maybe you should inquire as to whether those bolts are a one time use as well.
I would assume they will be labeled when you buy them and if you note the differences you should be able to match them up upon taking the old ones out.
You should also replace the upper hose at the same time. Those are quick disconnect type hoses on there. Orginal ones only had one 0-ring for sealing. New one has two o-rings.
114 ftlbs is there torque specs for the thermostat housing.
I am thinking that maybe you should inquire as to whether those bolts are a one time use as well.
#3
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I don't really know the answers but yes there are two thermostats, one opens first at a lower temp setting.
I would assume they will be labeled when you buy them and if you note the differences you should be able to match them up upon taking the old ones out.
You should also replace the upper hose at the same time. Those are quick disconnect type hoses on there. Orginal ones only had one 0-ring for sealing. New one has two o-rings.
114 ftlbs is there torque specs for the thermostat housing.
I am thinking that maybe you should inquire as to whether those bolts are a one time use as well.
I would assume they will be labeled when you buy them and if you note the differences you should be able to match them up upon taking the old ones out.
You should also replace the upper hose at the same time. Those are quick disconnect type hoses on there. Orginal ones only had one 0-ring for sealing. New one has two o-rings.
114 ftlbs is there torque specs for the thermostat housing.
I am thinking that maybe you should inquire as to whether those bolts are a one time use as well.
#7
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#9
You should also replace the upper hose at the same time. Those are quick disconnect type hoses on there. Orginal ones only had one 0-ring for sealing. New one has two o-rings.
Good call on the upper rad hose! I was just on a 1000 mile trip and mine started leaking antifreeze everywhere.Got a new one replaced(Not under 36000 mile warranty dammit) The service Mgr advised me of the new 2 oring hose assy,said he hasn't seen one of the new hoses leak yet but has had alot of the other ones go bad.
Good call on the upper rad hose! I was just on a 1000 mile trip and mine started leaking antifreeze everywhere.Got a new one replaced(Not under 36000 mile warranty dammit) The service Mgr advised me of the new 2 oring hose assy,said he hasn't seen one of the new hoses leak yet but has had alot of the other ones go bad.
#10
Hi All,
I already replaced the upper hose. The gasket melted and started to leak while I was traveling through phoenix in 100+F while towing my travel trailer. Only thing to go wrong on the truck during a 16,000 mile road trip!
Does anyone know where the thermostats are located, and how to replace them? Again, pictures would be appreciated.
Thanks
I already replaced the upper hose. The gasket melted and started to leak while I was traveling through phoenix in 100+F while towing my travel trailer. Only thing to go wrong on the truck during a 16,000 mile road trip!
Does anyone know where the thermostats are located, and how to replace them? Again, pictures would be appreciated.
Thanks
#11
#12