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Heating & Cooling 4th Gen Dodge Ram Heating & Cooling Problems and Questions.


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  #21  
Old 04-04-2012, 05:19 PM
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You could totally buy a turbo and the parts needed to make your own kit for less than 2 geez!
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  #22  
Old 04-04-2012, 06:29 PM
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I just don't know enough about boost to do it myself. I could probably figure it out but don't want to do that on my daily driver. If there was a kit that's for sure to work then I'd do it. I mean really, you see how long it takes me to do small things like intake, exhaust, torque converter, lol...imagine if turbo was a work in progress!
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  #23  
Old 04-05-2012, 01:28 AM
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just removed my clutch fan. the final temps i went with is 190* with a/c on, and with the a/c off the low is 190* and the high 200*. I let it idle for about 20 minutes to be a little harsh on it and the fan kicked on right when it was supposed to, and it cooled down to 179-181. then the process repeats itself. but at a low speed it didn't go above 190*. tomorrow i will do a test drive maybe of about 20 to 30 miles at different speeds on the freeway and see what i get for an average running temp, or experience any overheating problems. and i order my new e-fan tomorrow as well!
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  #24  
Old 04-05-2012, 10:09 AM
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Cool. Those temps sound pretty good if you are able to get it down to 180. I wonder if I have a defective tstat or something. The lowest mine will go after warmed up is if I get cruising on a cold morning it MIGHT get down to 188, but 190-195 is more likely. It seems like mine has only dropped about 5-10 deg on avg from stock.

Did you guys have to do anything special to make sure the air was out of the system when you isntalled the tstat? I let it run with heater on and radiator cap off and squeezed the radiator hoses and everything and kept topping it off and all that so I thought I got it all out. I have noticed too though that it is not drawing anything from the expansion/overflow tank. I know this because I put straight water in it and after weeks it is still straight water, no coolant mixed in.
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Old 04-05-2012, 11:27 AM
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hmmnnn.... ya that is a little strange. do you have a JET 180* or like a knockdown one from autozone? ever since i installed mine it runs around 177-183. depending factors - if a/c is running, traffic vs. moving speeds of freeway, temperature of the day hot vs. cold.

one thing you could try is adding an addative to your radiator. royal purple makes one called ice, as well as red line they make one called wetter watter.

wetter watter - http://www.redlineoil.com/product.aspx?pid=74&pcid=10

royal purple ice- http://www.royalpurple.com/product-c...olant-additive

they both promise to keep your coolant somewhere around 20 degrees cooler, personally i added 2 bottles of the royal purple ice into my radiator.

as far as getting the "air out" i didn't even know you had to. i just replaced the t-stat, filled up the drained coolant and started driving.
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  #26  
Old 04-05-2012, 11:34 AM
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I have a Jet tstat. It's the only one available for the 4.7L. Part number 10177.

So what is your coolant temp when cruising down the road with AC off and efan off? What's the range from cool out vs hot out?

Mine varies from about 190 when cool out to 200 when hot out. When stock it varied from like 200 when cool out to 210 when hot out.

Again, cruising with fan off.
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  #27  
Old 04-05-2012, 01:17 PM
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Quote:
Originally Posted by snrusnak View Post
So what is your coolant temp when cruising down the road with AC off and efan off? What's the range from cool out vs hot out?
just did a 20 mile drive on the freeway and here are the results.... going from a cold engine at approx. 75 mph my engine temp raised up to 190*, at that point my t-stat opened up and the a/c condenser fan turned on at low speed. my temp dropped to 177 and it maintained 177-183 at cruising speeds of 75 mph on the freeway. now im not sure what temp the fan turns off at if there is a 6* delay like superchips or not, but when i stopped at my turn around point 10 miles in at a temp of 181 i checked and the condenser fan was NOT on. therefor i assume with the a/c off and efan off, average temp range was 177-183 ( more so i saw about 181 the most). another thing is when i got onto a surface street and slowed down to 50mph the temp went to 185, but then seconds later right back down to 177.

something also to consider in this is that its only 65 degrees right now in cali so im not calculating what might happen in the summer time, or with towing a trailer/boat.
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  #28  
Old 04-05-2012, 01:19 PM
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i would try adding some Royal Purple ICE to your coolant, i believe for your 4.7 you only need one bottle and see if you notice a cooler temperature.
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  #29  
Old 04-05-2012, 01:37 PM
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Thanks for checking that out for me. I'm not sure I want to start putting any other fluids in there yet. If I do have a problem, that's not the fix.

I went to lunch today and it was about 90 deg F outside, and the truck warmed up and held ~195-200 deg while stopping and going from light to light. While sitting in the drive through (chik filet...yum) it rose to 207 (fan on speed) and then the fan quickly cooled it to about 199 then it kicked off. Then it rose, fan on, cooled, fan off, a few times (long line today...). Then upon leaving it maintained 195-200 with no fan the rest of the way.

I'm happy with how it's operating, just wish it was about 10 degrees cooler.
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  #30  
Old 04-05-2012, 06:33 PM
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i don't know how many miles you have, or if you have ever done it but the only other thing i could think of is getting your radiator serviced. personally i know how do do it and it is relativley easy, however getting the dealer or mechanic to is more suggested cause they have a vacume machine that flushes the whole system usually 2 or 3 times. also if you do have "air" in the system they will be sure to get it out.

then again its only 2 years old so it should be pretty clean. it usually doesn't require service for 5 or so years.
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