Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.
No, the EGR cooler or valve would simply burn the coolant and you would see white smoke.
This is a fault in the head gaskets. The issue in this case is a faulty sealing ring on the #2 and #7 cylinders. This allows the combustion pressure to push into the cooling system and then pushes out the surge tank.This will not push coolant into the cylinder so it will not smoke. The replacement head gaskets are updated and do not have the same ring or design so repeat failures are not an issue. THe gaskets take about 36 hours to change in a shop as there is lots to get out of the way. Many even lift the cab off.
It can with the low coolant level.
Is the level currently low?
Yes it would. AS pressure builds, it stops the coolant flow which is why those items react.
Although there is a slight chance this is the water pump,
Do you have the means to look for a stamped number on the housing?
No recalls, no.
There was a bulletin on the water pump, but that is info only
If this is head gaskets then it is about 1800 for parts and 30ish hours labour.
Put the coolant overflow hose into a pop bottle, if it gets coolant in it, then I am sure it is the head gaskets.
Every single on I have had with coolant in the bottle has been the head gaskets.
I am thinking more like 98% chance.
At this moment, no.
Please reply back if you need additional help or information regarding this issue. If there is nothing more I can get for you today, then please press ACCEPT If my answer was helpful. You can reopen/reply to this thread directly to me at any time by replying to it and I will respond as soon as I am able. Please keep in mind that as experts on this site, we are only compensated for our time spent helping customers once ACCEPT is selected. Be sure to bookmark this page as a favorite (CTRL D on PC and CMD D on Mac) to reply with results or ask more if you need. Thanks again for using Just Answer. Cam.