In this video we replace the thermostat in our 2010 dodge Cummins diesel truck. While other models may be slightly different the thermostat location should be the same on all Cummins 6.7 engines. If your truck is not warming up or sometimes even having overheating issues, you might want to check the themostat.
I cannot say if this is the factory approved procedure as I just figured it out as I went along. You can read the whole blog on this fix here! – https://www.mortonsonthemove.com/toms-tech-blog/thermostat-troubles
The basic procedure is to drain some coolant from the truck. Remove all the junk that is in the way of the thermostat housing. (including the plastic top cover, EGR crosstube, EGR tube springclips, electrical connectors and heat shield). Once you get all that off the exhaust pressure sensor wires and tube need to be removed from the thermostat housing and the 3 bolts that hold it down. Pry the thermostat up and plop the new one in!
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just do full delete man
Another great video Tom it is always a good idea to replace vehicle parts with original parts when you can most after market parts are less quality and don't always work!
Top Tip….. yes a short length of rubber hose to stop splashing out of the bucket, that glycol in the anti freeze is poisonous, just prop the hose over the outlet and let it hang down into the bucket.No more splashing….. done my fair share…… Regards Charles
Great that you can do your own maintenance. Until you get the Rivian…
That’s a Dodge fur ya… Good vid, don’t ya just love all the back seat mechanics… Thanks for taking the time to make the vlog and for sharing.
Only takes 2 min on a 5.9L. LOL. Good video
And….if you suspect the rubber seal from the old thermostat is in your block, you really should have flushed your cooling system. Now that seal is going to block coolant flow somewhere or jam your new thermostat in the open position. Ug! Doing work twice is no fun.
Bro, didn’t your dad tell you to use the correct tools? Using a vice grip anywhere on your truck is a sin!!
It would have been perfect time to disassemble egr valve and soak/clean
Very helpful. Thank you
Good video. Ditto on the radiator cap being replaced. The 4th Gen 6.7 should be heating up to 200F not 190F. Might want to keep an eye on that. I noticed, those crappy Chinese connectors fell out of your EGR, mine did too. 😉 (that and a Banks Cold Air Intake and Banks Monster Exhaust pushed my MPG up 4 MPG. We have a 2012 RAM 2500 w/ 6.7. You also might want to invest in a coolant filter because the fluid draining looked a bit rusty. But that might have been the color. Anyway, it's a really simple add-on that filters coolant. Cummins also recommends using a special flow control adapter when filling the radiator which seals like the radiator cap and doesn't allow any air into the system as you fill. You want ALL of the air out of the system because the EGR cooler can and does rupture if air get into it. For more DIY 6.7 repairs I recommend Motor City Mechanic.
Good job, Tom. Y'all Be Safe!
I like the kobalt tools too
Please change your radiator cap it will save your engine