# The Curious Case of the Ram Transmission Cooler **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [October 27, 2026, 4:05pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502 "2026-10-27T16:05:19Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Old-Days-Rick](https://avatars.discourse-cdn.com/v4/letter/o/7feea3/32.png) [@Old-Days-Rick](https://community.cartalk.com/u/Old-Days-Rick)\ **Post date:** [October 27, 2026, 4:05pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/1 "2026-10-27T16:05:19Z")
I need everyone’s opinion on this, 2019 Dodge Ram, 5.7 Hemi, shy of 100k, it had a remanufactured engine installed due to lifter roller failure which liffter failure is a very common problem on these probably due to thin oil and a design defect in the oiling system. Anyway besides the point. The vehicle hot back to the owner and 1 day later the transmission line blew off and dumped alot of transmission fluid out, how much I do not know thanks to a dipstickless transmission. It gets towed back and it is said a clip failed or came loose. They fill ot woth fluid and the customer received vehicle. 2 days later the vehicle had trams fluid under it, got towed back again and it is determined the transmission cooler split and failed! Is this just coincidence or do we think the shop damaged it? I am not familiar with that design. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [October 27, 2026, 4:55pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/2 "2026-10-27T16:55:57Z")
> [@Old-Days-Rick](#): > > Is this just coincidence or do we think the shop damaged it? I am not familiar with that design. Now how would anyone on the web answer that without actually seeing the vehicle? ---
**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\ **Post date:** [October 27, 2026, 5:10pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/3 "2026-10-27T17:10:14Z")
> [@Old-Days-Rick](#): > > dumped alot of transmission fluid out, how much I do not know thanks to a dipstickless transmission. You do realize it is fairly easy to measure how much ATF you add to any transmission right??? It is not like you are using disappearing fluid containers once the fluid has been emptied from it… Is the cooler in question internal (radiator) or a stand alone cooler?? And yes, it does seem to have rad and trans cooler issues… > **[Ram TSB 05191925A — 2019 1500 | CarComplaints.com](https://www.carcomplaints.com/Ram/1500/2019/tsbs/tsb-05191925a.shtml?utm_source=chatgpt.com)** > > Ram TSB 05191925A: Technical Service Bulletin for the 2019 Ram 1500. > [@Old-Days-Rick](#): > > Is this just coincidence or do we think the shop damaged it? Is it coincidence?, probably… Did the engine being replaced add to the possibility of something else failing?, probably… ---
**Author:** ![Old-Days-Rick](https://avatars.discourse-cdn.com/v4/letter/o/7feea3/32.png) [@Old-Days-Rick](https://community.cartalk.com/u/Old-Days-Rick)\ **Post date:** [October 27, 2026, 5:38pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/4 "2026-10-27T17:38:00Z")
I need everyone’s opinion on this, 2019 Dodge Ram, 5.7 Hemi, shy of 100k, it had a remanufactured engine installed due to lifter roller failure which liffter failure is a very common problem on these probably due to thin oil and a design defect in the oiling system. Anyway besides the point. The vehicle hot back to the owner and 1 day later the transmission line blew off and dumped alot of transmission fluid out, how much I do not know thanks to a dipstickless transmission. It gets towed back and it is said a clip failed or came loose. They fill ot woth fluid and the customer received vehicle. 2 days later the vehicle had trams fluid under it, got towed back again and it is determined the transmission cooler split and failed! Is this just coincidence or do we think the shop damaged it? I am not familiar with that design. > [@VOLVO-V70](#): > > Now how would anyone on the web answer that without actually seeing the vehicle? There’s alot of mechanics on here that may know if its a common failure point. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [October 27, 2026, 5:48pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/6 "2026-10-27T17:48:34Z")
> [@Old-Days-Rick](#): > > I will no longer be involved woth that shop since it almost got physical when I went there and started asking the hard questions Why am I not surprised ? ---
**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\ **Post date:** [October 27, 2026, 5:53pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/7 "2026-10-27T17:53:33Z")
A hard burnout in the parking lot is a good way to show the shop that you’re serious. ---
**Author:** ![TwinTurbo](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@TwinTurbo](https://community.cartalk.com/u/TwinTurbo)\ **Post date:** [October 27, 2026, 6:02pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/8 "2026-10-27T18:02:51Z")
davesmopar is the trans expert and may refute this but one thought was if they significantly overfilled the trans, it could result in higher than normal line pressure. This could cause failure where the system is weakest. If the cooler was corroded to begin with, it might fail under higher than normal pressure… If it were mine, I would have asked for the old part back just so I could verify its condition and failure mode… ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [October 27, 2026, 6:51pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/9 "2026-10-27T18:51:59Z")
@Old-Days-Rick the common denominator in all of your stories of aggression is YOU ---
**Author:** ![Old-Days-Rick](https://avatars.discourse-cdn.com/v4/letter/o/7feea3/32.png) [@Old-Days-Rick](https://community.cartalk.com/u/Old-Days-Rick)\ **Post date:** [October 27, 2026, 8:00pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/10 "2026-10-27T20:00:53Z")
> [@db4690](#): > > @Old-Days-Rick the common denominator in all of your stories of aggression is YOU No the common denominator is people that have attitude problems. Most of the people i interact with I have no issues with, in fact many people think im wonderful. I went to go get information, I was met with hostility, I tried to defuse letting them know I was trying to help a friend and was met with more hostility. I then matched the energy and got snippy as I left. Typical human response, I am the good guy not the troublemaker. ---
**Author:** ![Old-Days-Rick](https://avatars.discourse-cdn.com/v4/letter/o/7feea3/32.png) [@Old-Days-Rick](https://community.cartalk.com/u/Old-Days-Rick)\ **Post date:** [October 27, 2026, 8:10pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/11 "2026-10-27T20:10:09Z")
> [@VDCdriver](#): > > A hard burnout in the parking lot is a good way to show the shop that you’re serious I was in the tahoe and was not interested in hurting the parking lot, I did grab my dual horn impact gun air horn and I blew it as left, layed on it. I didn’t even roar out of there, I drove slow so they could hear the horn longer ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [October 27, 2026, 10:24pm UTC](https://community.cartalk.com/t/the-curious-case-of-the-ram-transmission-cooler/206502/12 "2026-10-27T22:24:06Z")
> [@Old-Days-Rick](#): > > got towed back again and it is determined the transmission cooler split and failed! We should analyze the cooler to determine if it cracked because of aggressive handling of the connectors or should we stay out of this because none of us are involved with the repair or own that truck. Oil pressure to the cooler/lines can be between 20 and 50 psi, overfilling the sump generally reduces line pressure due to oil foaming. It would be best if you refrain from any accusations with the technician. > [@Old-Days-Rick](#): > > I will no longer be involved woth that shop since it almost got physical when I went there and started asking the hard questions Unless you represent the vehicle owner on a professional level, you won’t be welcome in the shop if not accompanied by the owner of the truck. Would you want a stranger be allowed to inspect your vehicle while it is in the possession of a repair shop?