Radiator help

JAY

Donating Member
I am having overheating problems and think the original radiator is plugged. Does anyone know of an aftermarket radiator that you can still hook up the trans & oil cooler lines to? I can get an oem from GM and an oem spec from Napa.
 

sy538

New member
Re: Radiator help

I'd try some RMI25 before i bought a new radiator, but be careful with it, just half of a small bottle cleaned all of the bars stopleak out of my ranger.
 

JayLo

Sir Boost-a-Lot
Re: Radiator help

Will that stuff work well in our IC system? How long should I run it until I flush the system?
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Alexxa
 
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dgoodhue

BuSTeD 4.3
Re: Radiator help

Why do you need to flush your IC system out? Is it that corroded? I am not sure how RMI is going to work with cooler temp of the IC when working properly (ie hot wired)
 

JAY

Donating Member
Re: Radiator help

How many turns or how freely should a working, good condition fan clutch turn?
 

JayLo

Sir Boost-a-Lot
Re: Radiator help

My IC did have some crap in it when I removed it and the metal lines. I was just wondering if maybe my bottom heat exchanger might be fouled enough to cause the IC to pick up heat from the top exchanger but prevent it from rejecting heat from the bottom one.

On second thought, I suppose they would both likely be equally fouled. I must have a kinked line.
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Park Royal 2 Condos Pattaya
 
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sy538

New member
Re: Radiator help

Oh, I forgot to mention, 2 or 3 years ago I replaced the heater core in my ranger, six months ago I poured in ~4oz of RMI25, a couple weeks ago my heater core started leaking again. I’m not going to say the RMI caused it, but I’m not going to say it didn’t either.
 

Jer

Don't taze me bro!
Re: Radiator help

If you still have your vent from your valve cover going into your intake pipe you could get oil pooling up in your intercooler. In the past, I've poured a little gasoline in them and covered the ends and shaken them up real good and dumped them out to get it out. Make sure that it dries well before hooking it back up. This was on other types of A2A intercoolers so I'm not sure how it would apply to stock intercoolers on these vehicles though.
 

JAY

Donating Member
Re: Radiator help

I got my radiator situation fixed. I replaced the fan clutch, boy does that fan howl now. I also did the ic pump hot wire and replaced the relay and it works when its cold/first started, but it wont run the pump when it is hot/ecu tells it to turn on. I connected the yellow wire from the relay harness to ground, does the other side of the yellow wire need to still be connected?, mine still is. Or does the wire side coming from the harness need to be cut? I checked off the "How to" and it wasn't specific about it. http://www.sytyarchives.com/howto/viewarticle.php?article_name=ic_pump_hotwire.php&dir=engine
 

Jer

Don't taze me bro!
Re: Radiator help

chargerman said:
I am having overheating problems and think the original radiator is plugged. Does anyone know of an aftermarket radiator that you can still hook up the trans & oil cooler lines to? I can get an oem from GM and an oem spec from Napa.

The first and easiest thing to check is that your water/coolant level is topped off. Even a half quart low could cause overheating issues. Then make sure your thermostat is functioning properly s they're cheap to replace and just as reliable. Just making sure you checked the basics since you didn't post if you checked them or not.
 

JAY

Donating Member
Re: Radiator help

Yeah the coolant is really full, just trying to figure out this IC pump stuff.
 

Jer

Don't taze me bro!
Re: Radiator help

chargerman said:
Yeah the coolant is really full, just trying to figure out this IC pump stuff.

I can't help too much there man. Being A2A has it's advantages.... less stuff to have to know/remember.
 

sy538

New member
Re: Radiator help

Yes both ends of the yellow wire need to stay connected like they were. To hotwire it you just run a 2nd wire from a ground to the yellow wire. If I misunderstood you and this is the way you have it, nevermind and sorry I can’t help.
 

JAY

Donating Member
Re: Radiator help

sy538 said:
Yes both ends of the yellow wire need to stay connected like they were. To hotwire it you just run a 2nd wire from a ground to the yellow wire. If I misunderstood you and this is the way you have it, nevermind and sorry I can’t help.
Yeah, this is how I have it. I think the pump is probably on the fritz.
 

JAY

Donating Member
Re: Radiator help

chargerman said:
[I also did the ic pump hot wire and replaced the relay and it works when its cold/first started, but it wont run the pump when it is hot/ecu tells it to turn on. I connected the yellow wire from the relay harness to ground, does the other side of the yellow wire need to still be connected?, mine still is. QUOTE]
Any ideas. Is it supposed to run all the time with the key ON? Mine does not, only when it's cold.
 

Tooky

Serious about performance
Re: Radiator help

Chargerman did you try the ALDL test trick that energizes all solenoids with the Key on, Engine off? That's a good way to test your IC Pump. With the engine off, you can really hear it buzz under the hood like an obnoxious fish tank.

JayLo, Jer had a great idea about putting some gas or something into the stock IC (removed from the truck) and shake it up and then dump it out, repeat until it comes out clear. I removed a lot of gunk from mine doing that. The gas will leave the inside very clean and bare metal, ready to transfer maximum heat out of the air. :cool:
 
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