You bought the wrong replacement radiator. The small hose you deleted is the one that extracts any air from the system as it is sourced from the top of the radiator into the reserve (expansion) tank. Now if you remove the lower radiator cap you will lose all the reserve refrigerant fromt the reserve (expansion) tank. The small hose you deleted also circulates coolant through the expansion tank to prevent a stagnant coolant condition. This circulation introduces a small flow of coolant into the reserve tank and is returned out of the bottom hose on the reserve tank back into the system as it T's into the heater hose connection. The overpressure relief you connected to the bypass hose vents above the normal coolant pool. You have created a dead zone of coolant.

Thx for the good informative video. After I watched it, I decided to attempt the same. I bought a radiator from AutoZone that was OEM for 189.00 and launched into the job. All went well and the old Dodge seems to be holding her fluid and running well. Much appreciate your posting.

Too funny. My 2002 1500 with the 4.7 sprung a leak in the EXACT same spot!! The plastic/nylon end cap section had a succession of small cracks and began to spray straight out the front while the engine was running. As a temporary fix I scratched it up real good with a heavy abrasive cone tip on my Dremel (not digging in or gouging but rather a good scuff and getting the tip into the tab corners of the plastic ribs and under the aluminum tabs on the left as well), blew off the dust with compressed air, wiped the whole area down thoroughly with odorless mineral spirits, I mixed up some 2 part JB Weld 5000psi (a little black and white tube and a little red and white tube), and put the first skim coat on the cracks. After that skim coat was firming up in about 4 or 5 mins, I mixed up a nice big batch of the JB Weld 2 Part and put a good heavy coat over the whole area and made sure to get it into the spaces under the aluminum tabs and as well filled into the plastic ribs as possible covering the entire area with a good thick coating just enough to not allow it to start to rundown the face of the radiator end. Looking back, I probably would have loaded it on and used some wax paper to hold it in place until it started setting up firmly, or, drove the front of the truck up onto either a steep hill or some tall ramps to angle the truck back a bit. I let that JB Weld cure for a good 24 hours until it was solid as a rock inside and out. Gotta tell you, it worked like a charm not one drip or any sort of moisture out of anywhere around that area and I’ve been driving around in 90°+ heat all week waiting on delivery of the new radiator. If the area is prepped properly and cleaned of all oils and grease, scuffed up properly, dust blown off, and wiped down with mineral spirits, that high strength JB Weld 2 part paste epoxy will absolutely stop a leak in a radiator. This is the third time I’ve used it to get by until the new radiator can be installed (all different vehicles) and in each case it has worked flawlessly. But it is a TEMPORARY fix. Don’t cheap out and keep piling it on. Get a new friggin radiator, lol!! 👍🏻😎👍🏻

Honda Challenge tip of the video: 409 cleaner... keep some in the garage. it makes removing any stuck on hose easy to remove... especially if they are mounted to brittle plastic pieces... just soak them and they should slide off without the need of a wrench.

Q: I have a 02 dodge ram 15 with 4.7 v8,and tge rad is very similar to this one in your video. Is there a split in the years production, because another utuber shows an 02 with a different system?

He should have removed the bottom hose it would have been easier to takeout the radiator?

I got to do that the same thing you his video is going to be helpful how many bolts does the shroud have on it

Besides removing the hoses it was easier to remove the radiator fan.

I can never find a video for my 2002 Dodge Ram 1500, 5.9. 2WD.

Did the person filing actually review it before publishing on KZfaq? Camera angles are blocked and visually difficult to associate instructions to what is on video. Go pro on forehead really bad idea!!!!!!!

whats that hose called that connects to the little hole near the radiator cap called if someone can plz tell me i would appreciate it a lot

Does the radiator fan constantly run?

Radiator replacement featuring the Truly I left on the workbench. Oops

Same leak on my dodge just replace radiator, easy

Y he keep saying this if someone is watch how to do it this vid will cause them to be confused