I have this issue
I’m having this exact same issue. Did you ever figure out a solution?I have this issue
Thanks for the response! So you'd say the primary symptoms would be full overflow tank after overheating, and exhaust smell in the overflow tank? I'll have to go back and watch it; I don't recall the overflow being full (but the radiator sure seems so!)This is very likely one the common mishaps the d17 engine gifts people with at least once. There is a crush gasket on the EGR/Thermostat housing attached to the left side of the head. This chamber has a thin wall between water and exhaust and when it comes loose or leaks it will overpressur the cooling ssytem resulting in a full overflow tank, spots all over the top of the engine and hood and periodic overheating as exhaust gases are forced into the water jacket.
So that's the way it is, and I think I have some ideas.This is very likely one the common mishaps the d17 engine gifts people with at least once. There is a crush gasket on the EGR/Thermostat housing attached to the left side of the head. This chamber has a thin wall between water and exhaust and when it comes loose or leaks it will overpressur the cooling ssytem resulting in a full overflow tank, spots all over the top of the engine and hood and periodic overheating as exhaust gases are forced into the water jacket.
See my write up here for how this was discovered - with pics from the shop manual etc.: Hello Fellow 7th gen survivors!
I did the whole thing and it was a good time to do timing belt and water pump, but it was a pita and took a very long time, and others have verified that this egr/tc gasket is a good thing to try first as it can be done in a few hours w/o removing the legendary bedded crank bolt of shame. The torque specs I used worked fine and have lasted nearly 100k miles, but be aware of the aluminum threads rather than the bolt somebody mentioned.
Of course, the hg can be blown during overheating, and worse so ymmv. Good luck!
I remember it too.Thanks for the response! So you'd say the primary symptoms would be full overflow tank after overheating, and exhaust smell in the overflow tank? I'll have to go back and watch it; I don't recall the overflow being full (but the radiator sure seems so!)
I read it again, and it looks like it's going to take some time, and I'll try it tomorrow.This is very likely one the common mishaps the d17 engine gifts people with at least once. There is a crush gasket on the EGR/Thermostat housing attached to the left side of the head. This chamber has a thin wall between water and exhaust and when it comes loose or leaks it will overpressur the cooling ssytem resulting in a full overflow tank, spots all over the top of the engine and hood and periodic overheating as exhaust gases are forced into the water jacket.
See my write up here for how this was discovered - with pics from the shop manual etc.: Hello Fellow 7th gen survivors!
I did the whole thing and it was a good time to do timing belt and water pump, but it was a pita and took a very long time, and others have verified that this egr/tc gasket is a good thing to try first as it can be done in a few hours w/o removing the legendary bedded crank bolt of shame. The torque specs I used worked fine and have lasted nearly 100k miles, but be aware of the aluminum threads rather than the bolt somebody mentioned.
Of course, the hg can be blown during overheating, and worse so ymmv. Good luck!