It could. I would venture not much. I do not have that either as it had to go for the BA Winch Bumper Install........ but it never gets 100F or more in MI.

 

I guess it wouldn't hurt to install it and see. I do have a bumper, so it may not be as straight forward. We're looking at 115-117 this week, its going to be cookin. Today it was 105-107 and hottest it got was 221 sitting at the light, once moving temps drop to 207-210. I also noticed my transmission temp creeping and got to 230 at one point after highway driving and chilling at the light after exit. BTW this is my wife's car, she wouldn't let me keep it

 

I’ve been following this thread with keen interest as I just recently did an inaugural trip with a 3400 lb camping trailer and OMG, things got hot. Up till now, ECT has always ben below 200 with gauge just below the mid point in the cluster. Tranny has always been below 200. I’m driving a Championship edition with the V8. Tranny has 15k miles since rebuild. Fluids are clean.


I also have a large Hayden 405 external tranny cooler installed in series, and for the most part flat towing in 95F ambient at 5k ft above sea level my tranny has been about 10 deg cooler that ECT, with ECT running between 195 to 210.

However, going into the mountains I saw temps of 220-230 while climbing from 5000-8000 ft over 40 miles, and at one point after climbing a 2 mile 6 deg grade at around 8500 ft I saw temps peak at 250 for a few minutes - both tranny and ECT. Yikes!!!

I will hose out the radiator before trying this again, but I’m super worried about heading back to the hills.

Now, having said all that, I noticed after I got home that I’m missing the lower radiator baffle (Item 6 in Hummerz’ parts diagram). Would *that* baffle make a *big* difference?

Thanks guys, and sorry for hijacking the thread ( I think that earlier discussion has kind of run its course, and this is directly related, but happy to move this into a new post if needed).

 

I actually saw another post (there are many) about running hotter than usual, and one of the things that was suggested is to make sure there are no missing radiator diffusers etc.. there is also a troubleshoot guide, one of the first things it lists is to check all the diffuser components etc.. another post where a guy actually taped off the gap between fan shroud and radiator and that seemed to help him. In another post it was suggested that raised front end can cause wind to redirect over the grill instead of through the grill, why the baffle is that much more important. Perhaps when towing cars tend to squat, so maybe 🤔

 

#6>>>

15948095 Lower Radiator Seal

15948095 Lower Radiator Seal

 

Just to be clear, there are 2 baffles(10&11):

 

Thanks Hummerz. Do you think that seal is going to be most of my problem? The seal is so far out of the way that I thought maybe it had something to do with being able to drive through water vs directing air through the rad.

Both the baffles you indicated, plus the seal on top between rad and frame, are all there.

 

This diagram is very helpful, both mine are missing. Idk how much difference these things will make, but working on my home HVAC system with some help from an HVAC friend, I can say air flow makes a big difference when it comes to coils and heat transfer.

 

The "seal" is the big rubber flap hanging off the bottom backside of the Radiator with holes for the trans cooler lines to pass through. It lays on top of the splash shield.

 

If that’s for me, thank you. The “seal” I was referring to is PN 15806298 “upper seal”, item 5 in the image. I am definitely missing the lower rubber flap seal in your picture and was wondering how influential that is to the performance of the cooling system. Thanks!!