how to change the thermostat on a ford f-350 diesel 2003???
#3
69cj did a nice step by step on how to remove it.
Thermostat Removal Option: (Thank you 69cj)
A) Pull air cleaner assembly.
B) Drain coolant.
C) Remove upper radiator hose.
D) Remove 2 nuts on t-stat housing.
E) Lift and move press sensor bracket to the side. Not a lot of play in it but it will move.
F) Remove 2 more nuts on t-stat housing.
G) Remove housing. It will lift right off of the studs.
H) Reverse procedure to re-install. Use a new O ring (5 bucks at dealer). I used Vaseline to hold the O ring in place.
Thermostat Removal Option: (Thank you 69cj)
A) Pull air cleaner assembly.
B) Drain coolant.
C) Remove upper radiator hose.
D) Remove 2 nuts on t-stat housing.
E) Lift and move press sensor bracket to the side. Not a lot of play in it but it will move.
F) Remove 2 more nuts on t-stat housing.
G) Remove housing. It will lift right off of the studs.
H) Reverse procedure to re-install. Use a new O ring (5 bucks at dealer). I used Vaseline to hold the O ring in place.
#4
#6
#7
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#9
I am thinking about replacing my T-stat as well. I have about a 20 min commute in the morning to work 55/65 mph. My ECT's are holding at 178. That seems too low. I didn't really notice this back in the summer when its hot. I assume this due to the thermostat sticking. If i run it up to 75 mph and hold it there, ECTs run up to the upper 180s but not much more.
Also, I've noticed my fuel economy has dropped since I started noticing this....would that be a coincidence??...I assume not as the engine should be more efficinet once at operating temp.
Would yall recommend changing the t-stat for this one?
I've read seveal posts and these temps seem to be a little different for everyone. As for now and what i am basing my decision on is the ECTs should be 190-200 and EOT should be 200-210 under normal operating conditions without a load and should have a max of 15 degree difference between the two...anyone disagree with that.
Thanks
Also, I've noticed my fuel economy has dropped since I started noticing this....would that be a coincidence??...I assume not as the engine should be more efficinet once at operating temp.
Would yall recommend changing the t-stat for this one?
I've read seveal posts and these temps seem to be a little different for everyone. As for now and what i am basing my decision on is the ECTs should be 190-200 and EOT should be 200-210 under normal operating conditions without a load and should have a max of 15 degree difference between the two...anyone disagree with that.
Thanks
#11
I am thinking about replacing my T-stat as well. I have about a 20 min commute in the morning to work 55/65 mph. My ECT's are holding at 178. That seems too low. I didn't really notice this back in the summer when its hot. I assume this due to the thermostat sticking. If i run it up to 75 mph and hold it there, ECTs run up to the upper 180s but not much more.
Also, I've noticed my fuel economy has dropped since I started noticing this....would that be a coincidence??...I assume not as the engine should be more efficinet once at operating temp.
Would yall recommend changing the t-stat for this one?
I've read seveal posts and these temps seem to be a little different for everyone. As for now and what i am basing my decision on is the ECTs should be 190-200 and EOT should be 200-210 under normal operating conditions without a load and should have a max of 15 degree difference between the two...anyone disagree with that.
Thanks
Also, I've noticed my fuel economy has dropped since I started noticing this....would that be a coincidence??...I assume not as the engine should be more efficinet once at operating temp.
Would yall recommend changing the t-stat for this one?
I've read seveal posts and these temps seem to be a little different for everyone. As for now and what i am basing my decision on is the ECTs should be 190-200 and EOT should be 200-210 under normal operating conditions without a load and should have a max of 15 degree difference between the two...anyone disagree with that.
Thanks
I have the same problem you have, only get to 174/176. Everything I have read says it is the thermostat getting weak/opening early. I am just waiting for a day in the upper 40s to get a chance to change it! may be next spring. it was 16 this morning!!!
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2003, 60, 60l, change, diesel, drain, f350, ford, installation, powerstroke, radiator, removal, replace, therastat, thermostat