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Dodgedrvr
 
  Unhappy Dodge Ram Overheating - Posted: 07-08-2007, 07:33 PM
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Post #1

Hello, I have a 2004 Dodge Ram which keeps overheating at highway speeds. I have had the water pump and the thermostat replaced, but it continues to overheat. Can anyone help me?
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stickshiftsrule
 
 Posted: 07-08-2007, 07:42 PM
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Post #2

Have you had the radiator checked? Could it be plugged/clogged?
Also Have you added coolant recently? Could it have been the wrong kind?

Member krs just went through something similar, but he also had a body-lift in his truck.
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Dodgedrvr
 
 Posted: 07-08-2007, 07:47 PM
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Post #3

I just had the radiator flushed on Friday at the dealership. The vehicle only has 35,000 miles. No coolant in the oil, no smoke, no leaks. Running temps on scanner are 250 degrees.
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shemp0091
 
 Posted: 07-22-2007, 04:58 PM
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Post #4

Did you try removing your t-stat to see if the spring is broken?
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Dodgedrvr
 
 Posted: 07-22-2007, 05:11 PM
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Post #5

t-stat has been replaced,along with water pump,ipc,and ect

just out of curiousity why do all of you guys run a 180 t-stat, instead of the factory 195,,,are your trucks running hot too?
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shemp0091
 
 Posted: 07-22-2007, 08:11 PM
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Post #6

The superchip programmer advances the ignition timing which can make your
engine run a tick warmer. The 180 t-stat helps keep the engine cool. Not to mention that a slightly cooler engine makes more power.
I run a 7lb radiator cap to reduce the chances of blowing out a head gasket,
radiator hose, etc.....
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Dodgedrvr
 
 Posted: 07-22-2007, 08:16 PM
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Post #7

shemp0091, i see that you live in PA as well,so we share some of the same driving conditions,,where did your gauge run before you installed your programmer, mine goes up pretty far,,on my scanner its hitting the 250-258 range on the highway, which is way warmer than the normal 210 i am accustomed to
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shemp0091
 
 Posted: 07-22-2007, 08:24 PM
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Post #8

my temp gauge use to run just a hair over 1/2 way. Now it's just a hair beneath the halfway mark.
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gix4kix
 
 Posted: 07-24-2007, 06:38 PM
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Post #9

I have the same problem on my 04 QC 1500 4.7.... Please keep me posted on your findings. I'm no longer under warranty, so I don't want to throw away money if I don't have to. Mine can Idle all day long without any problems, but as soon as I try to drive 70-75 for any length of time, BAM 3/4 or higher
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krs
 
 Posted: 07-26-2007, 11:33 PM
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Post #10

Quote:
Originally Posted by shemp0091
my temp gauge use to run just a hair over 1/2 way. Now it's just a hair beneath the halfway mark.
This is with the 180 t-stat?


stickshiftsrule, this post has me thinking maybe the bodylift is not fully to blame.
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Last edited by krs : 07-26-2007 at 11:39 PM.
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krs
 
 Posted: 07-26-2007, 11:38 PM
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Post #11

Quote:
Originally Posted by gix4kix
I have the same problem on my 04 QC 1500 4.7.... Please keep me posted on your findings. I'm no longer under warranty, so I don't want to throw away money if I don't have to. Mine can Idle all day long without any problems, but as soon as I try to drive 70-75 for any length of time, BAM 3/4 or higher
Let me try to help you out since I am in the same boat as the rest.. Try touching the radiator in different spots after you have driven it for a while. What you are looking for is hot and cold spots througout the different areas. Another thing is to bleed the system you might have some air bubbles. I have been bleeding mine twice a week to see if thats going to help. This weekend I am going to check the heater core to see if that is faulty.
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Dodgedrvr
 
 Posted: 07-27-2007, 05:34 PM
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Post #12

well after yet another trip to the dealer today,, and they have replaced the fan clutch,,,and sure enough...it still "overheats", but atleast this time it was a different dealer and they actually sided with me stating that the temps on their scanner are at 250,
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4getful2
 
 Posted: 07-28-2007, 06:08 PM
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Post #13

all truth be told ,you really don't need a fan going down the interstate doin' 70 (it's the ram air effect)unless you are towing. a lower pressure rad.cap decreases the boiling point of your coolant.you only use those if your radiator is junk. since you have a scanner ,i wonder what the operating temperature is supposed to be?? did the dealer say?? it just seems so new to have a plugged up radiator since chrysler has changed designs(plastic tanks and larger tubes)but stranger things have happened. hopefully you don't have anything in front of the radiator blocking the air flow, like a bra or bugs from last year.gotta hose those fins out once in awhile(not high pressure either the garden hose will do. is it really running hot ??i mean after you drive it with it being that high on the guage .does the hot light come on ??it should have one of those also. is the radiator making funny noises,( like it needs to puke but can't ,THAT'S DAMM HOT)is coolant coming spewing out of the resevoir
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Dodgedrvr
 
 Posted: 07-29-2007, 06:17 PM
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Post #14

my scanner shows me temps as high as 252-255 ish...normal operating temps are supposed to be at 210, i have flushed rad with my wynns flush machine, tested cap etc..., there is nothing in front of the rad, rad is clean, coolant is not bubbling out, and needle isnt hitting the red,, it hits the white part in between the red, and last black line, there is definately no restriction that i can find, the dealer is arguing with me that the temps are only going to 230, and that is normal, they know that i am a tech, so i dont know who they think they are trying to buffalo here
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krs
 
 Posted: 07-30-2007, 12:21 AM
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Post #15

Dodgedrvr, are you saying yours goes this high?(green line is yours) My highest gets what the blue indication is showing then comes back down.
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krs
 
 Posted: 07-30-2007, 12:39 AM
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Post #16

and next time the dealer tells you its normal tell them you want them to come with you on a test drive with one of their 4.7s from the lot and ask them why this does not overheat? I would like hear their answer..lol
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2002 Ram 4.7L 2wd Sold

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Suspension 4" CST Spindles, 1" Body Lift, 2" Lift Shackles, Doetsch Shocks

Others Srt-10 Pillar With Tranny Gauge, 16 Row Tranny Cooler, Color Matched Grill Shell
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Dodgedrvr
 
 Posted: 08-09-2007, 07:17 PM
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Post #17

yep..the green line would be me,,,,i have now gone as far of taking a 2 minute snapshot with my scanner and showing them...now i am awaiting for the 13th of august so the dealer can pull my engine, and tear it apart according to dodge, so they can see what is wrong,,when asked what they might be looking for, they told me they havent a clue, but its what dodge wants them to do,,i have made the suggestion that the hot exhaust gases are entering the coolant system and that is why the coolant jumps up so high and fast once the temps reach 230,,but for some odd reason they give me strange looks? i guess a gm tech doesnt know how to work on any other engines??
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charlie1935
 
 Posted: 08-09-2007, 09:06 PM
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If exhaust or combustion gases were getting into the cooling system wouldn't you be blowing coolant out?
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krs
 
 Posted: 08-09-2007, 10:13 PM
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Post #19

Dodgrvr, let us know how it goes. I am not sure if I emailed you on this before but here is a update on my situation. I had bled my system for a week straight and now everything is running under normal operating temperatures. I do hope the best for you and good luck
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2002 Ram 4.7L 2wd Sold

Performance: 4.56 Gears, H/O Cams, 2008 Intake Manifold, 70mm TB, 4" Custom MIT Tube, Gibson SS Headers, ATI Pulley, SCT Tuned by FlyinRyan,2.5" Custom Y-Pipe With Magnaflow High Flow Cat and Muffler (12580) SI/DO Turn Down After Axel, Jeep Grand Cherokee TCM,

Suspension 4" CST Spindles, 1" Body Lift, 2" Lift Shackles, Doetsch Shocks

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Double T
 
 Posted: 08-18-2007, 04:17 PM
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Post #20

I am having the same problem with my 04 1500 QC 4.7 running hot only at highway speeds, so far I have changed t-stat, Flushed the radiator, and today I am changing the water pump and hoping that is the fix.
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