Backporch73
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- Phoenix, AZ
Radiator cracked in the Phoenix heat, any suggestions on what to replace it with? I'm doing an e fan conversion as well. Are the aluminum radiators worth it? Thanks in advance 
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Radiator recommendations
- Thread starter Backporch73
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Roastbeast
Active Member
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- New york
Just ordered number 2 yesterday. I just get one off eBay around 88 bucks delivered. Last one lasted 5-6 years. Stock lasted 6-7. They are very similar If you look around it seems these just don’t last that long.
rascole
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Can not recommend CSF aluminum, to many failures. I recently bought an ebay one for $82 that is a CSF OEM replacement, added a external tranny cooler and working good so far.
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- Scottsdale
Since I have an external transmission cooler, I went OEM radiator for the 5 speed trucks, without an internal trans cooler. My eBay special radiator's neck was a few thousands too large and I had wrap silicone tape around the cap to get it to seal. It worked for a few years, believe it or not, but the OEM ones can be affordable so I just stuck with it. $185 on rockauto right now https://www.rockauto.com/en/catalog/hummer,2007,h3,3.7l+l5,1433659,cooling+system,radiator,217
Which efan conversion are you doing?
Which efan conversion are you doing?
Roastbeast
Active Member
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- New york
The last ebay radiator I bought has a lifetime warranty and I’m in the process of using that now lol.
Happy Hummer
Well-Known Member
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First time chose to buy ac delco OEM and paid a princely sum. It cr@p out after a few years with the big crack across the top. The next one came from vatozone. Lifetime warranty.
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- Scottsdale
The funny thing about some lifetime warranties - how many times is it worth replacing? My O'Reilly power steering pump lasted 10 days. They offered a free lifetime replacement. As I don't enjoy replacing power steering pumps I declined, asked for my money back and got an AC Delco which has lasted four and a half years so far. Obviously everyone has different experiences which is the whole point of these discussions.
SlcHummer
Well-Known Member
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- Salt Lake City, UT
Agreed. I do find working on my vehicle relaxing...but only when I'm adding a mod or improving my rig, not when I'm replacing a radiator or power steering pump. In that case I'd rather replace with OEM and hopefully be good for 5-10 years.
Roastbeast
Active Member
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- New york
My eBay 88 dollar radiator lasted one year less than that stock gm. The eBay one has a lifetime warranty. Gm did not. I will take that as a win lol. I don’t mind swapping out it. Gets your mind off things and feels good fixing something
SlcHummer
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I like your thinking and attitude
Backporch73
Well-Known Member
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- 47
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- Phoenix, AZ
Radiator Kabooommmm!!!!!
Hi everyone! So my fan broke and sent a piece flying into the radiator which then popped and my hummer began overheating. I've decided that with temperatures of 117 degrees here in Tempe, AZ to install an all aluminum radiator and an Electrical Fan. OK so the new radiator is installed and the E Fan, I have questions about the last two wires. One says "Attach to AC clutch positive wire" and the other says "Attach to ignition source." Any ideas on this? Where is a good ignition source to tap the wire into? And the AC clutch wire, I'm guessing I have to remove the front drivers side wheel to even see it? Here's a few pics, I only have these two wires left. I had one guy tell me to wire then to the fuse box but I haven't done that in 25 years and even back then it was just a stereo. I'm not the greatest at wiring (obviously) and am a little intimidated. Any help would be appreciated thanks
Hi everyone! So my fan broke and sent a piece flying into the radiator which then popped and my hummer began overheating. I've decided that with temperatures of 117 degrees here in Tempe, AZ to install an all aluminum radiator and an Electrical Fan. OK so the new radiator is installed and the E Fan, I have questions about the last two wires. One says "Attach to AC clutch positive wire" and the other says "Attach to ignition source." Any ideas on this? Where is a good ignition source to tap the wire into? And the AC clutch wire, I'm guessing I have to remove the front drivers side wheel to even see it? Here's a few pics, I only have these two wires left. I had one guy tell me to wire then to the fuse box but I haven't done that in 25 years and even back then it was just a stereo. I'm not the greatest at wiring (obviously) and am a little intimidated. Any help would be appreciated thanks
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Backporch73
Well-Known Member
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- 47
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- Phoenix, AZ
Thanks for all the input guys! I did actually go with the all aluminum radiator but it's from a different source. I hope it works better than what you fellas have experienced. I also am switching to an e fan. I hope it helps, if not I guess I'll be changing it back lol!
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You can use an Add A Fuse in the fuse box for an ignition-based power.
Those connections really need to be better sealed against the elements, like with shrink wrap, like this. https://smile.amazon.com/650pcs-Shr...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU= You don't need a fancy torch; a cheap cigar torch works well.
I'll move this to your other thread.
Those connections really need to be better sealed against the elements, like with shrink wrap, like this. https://smile.amazon.com/650pcs-Shr...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU= You don't need a fancy torch; a cheap cigar torch works well.
I'll move this to your other thread.
Backporch73
Well-Known Member
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- 47
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- Phoenix, AZ
Thanks alrock, I am going to hard solder everything as soon as I know all of this works properly. I've been pretty skeptical about this whole setup. I picked up some add-a-fuses from AutoZone going to wire those in tonight
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Backporch73
Well-Known Member
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- 47
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- Phoenix, AZ
Those add-a-fuses and that did the trick! Running well and fan is really blowing! Heat never went about 1/2 while sitting for 45 mins with AC on MAX, was pretty cold too. I never had cold ac while Idling and my heat would always be about 3/4, so well see! Thanks alrock
Lord_Vien
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