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Dodge Ram Radiator and Cooling

66 messages,  Last post on Oct 09, 2009 at 4:28 AM

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What is this discussion about? Dodge Ram Pickup 1500, Auto Repair, Truck


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#37 of 66
Re: overheating problem? [dustyk] by broadbent1
Nov 30, 2008 (8:07 am)
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Replying to: dustyk (Nov 28, 2008 11:17 am)

thanks dusty i assumed , i have a 12 valve 1997 f350 diesel with automatic, it overheats only under load i have change the waterpump and the thermostat twice and pressure washed the radiator I thought about having the radiator taken out and check to see if its plugged but haven't done that yet because it only heats up up hill and pulling one place said may be it the fuel but thats just a guess and its running fine i just can't pull a load it over heats going up hill on the flat its ok any ideas appreciated
#38 of 66
Re: overheating problem? [broadbent1] by dustyk
Nov 30, 2008 (11:14 am)
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Replying to: broadbent1 (Nov 30, 2008 8:07 am)

Overheating under load conditions indicate the inability of the cooling system to transfer heat from the system to the air, or that some powertrain dynamic is generating more heat than the system can dissipate.
 
I am not intimately familiar with Ford F-series, especially diesels, but my first recommendation is to check the operation of the electric fans, if this vehicle is so equiped. The electric fans usually contribute to air movement under low speed conditions only, but if under load and low speed the lack of operating electric fans can cause this.
 
A more likely suspect would be the radiator itself, either being clogged or the cooling fins losing bond with the cooling tubes. This is most often associated with overheating under load conditions. If you haven't performed periodic maintenance on the cooling system, this is a more likely candidate. From what I hear about F-series PU, the system should be flushed every 50,000 miles.
 
If an automatic transmission, its possible the transmission could be generating too much heat for the system. If this were a GM truck, I'd say there's a 5% chance that this is a candidate, but I've never seen this on a Ford automatic.
 
Hope this helps.
 
Best regards,
Dusty
#39 of 66
Re: overheating problem? [dustyk] by dooman75
Dec 05, 2008 (3:23 pm)
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Replying to: dustyk (Nov 28, 2008 11:17 am)

engine 318 ; transmission=stock automatic and its the 3rd one i put in ; millage =100,00,biggest problem ive had is the overheating ,it will idle fine but as soon as i get going the temp gage goes up and antifreeze starts leaking from the water pump. i thought it was the pump so i replaced it but that hasnt fixed it...........need help!
#40 of 66
Re: overheating problem? [dooman75] by dustyk
Dec 16, 2008 (5:35 pm)
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Replying to: dooman75 (Dec 05, 2008 3:23 pm)

Have you changed the thermostat?
 
Regards,
Dusty
#41 of 66
Re: overheating problem? [dustyk] by dooman75
Dec 17, 2008 (12:48 pm)
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Replying to: dustyk (Dec 16, 2008 5:35 pm)

yes!! nobody seems to know anything.
#42 of 66
Re: overheating problem? [dooman75] by dustyk
Dec 17, 2008 (1:00 pm)
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Replying to: dooman75 (Dec 17, 2008 12:48 pm)

What year is the vehicle?
 
Will the coolant level drop if it just sits and idles for a long period?
 
I guess I'd recommend starting with a pressure test. You need to rule out a bad head gasket or cracked head, rare on a 318, but it does happen. If this is an older vehicle the radiator could be clogged or starting to unbond.
 
Regards,
Dusty
#43 of 66
Re: overheating problem? [dustyk] by tedtractor
Dec 17, 2008 (6:28 pm)
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Replying to: dustyk (Dec 17, 2008 1:00 pm)

replaced thermostat in my 96 dodge ram 360 gas motor 3 times, and on third try repaced radiator. temp goes to 215-220 and stays there. was at 200 before over heating problem. thermostats vary alot.
#44 of 66
03' dodge 1500 overheating by hubbardchad
Dec 30, 2008 (6:17 pm)
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I have a 03' dodge 1500 quad cab 4x4 w/ a 360 motor. It has about 86,000 miles. I have just recently put alot of miles on it. Within the past 2 months it has been leaking coolant, and just within the past couple of weeks the transmission feels like it slips every once in while. (not often) It just started to overheat today, and by turning the heat up all the way it reduced the engine temp. back to normal. The front radiator also has been gumming up with coolant as well. Does anyone know what might be causing this, or what might need to be fixed?
chad
#45 of 66
Coolant leak by hoveskeland
Feb 16, 2009 (12:50 pm)
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hoveskeland
I am from seattle, presently in alberta. when the van is cold it leaks coolant. no leaks warm. common?
 
It is well below freezing. When parked warm over virgin snow there are no leaks. when left over night, and once very cold (-20 C) it leaks pretty steady. I am having no running issues just keep toppoing off antifreeze. I am two weeks into the trip from warmer climate. Leaks most from water pump but I can't tell if it is a hose clamp and the water is traveling. The clamps are all the tension kind as opposed to tightening with a screw. I don't know how to tighten these. Is this a common problem and...I assume if it were the water pump it would leak at the same pace or more when running warm or cold and while stopped warm or cold. I think the seal is contracting or something. Ideas?
#46 of 66
Re: 2004 Dodge Ram 1500 4.7l v8 thermostat [seabisquit2] by marklynn
Feb 16, 2009 (6:40 pm)
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Replying to: seabisquit2 (Mar 25, 2007 2:47 pm)

I have a 97 1500 , I wonder if the thermostat is in the same place ? My trucks water temp guage runs hot (just below 260 ) then it will go below 200, then back up.....it varies the whole time, I get heat when it is "normal" and I get NO heat when it is HIGH.......... IDEAS ???

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