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98ramdodge
Novice
Feb 27, 2011, 11:54 PM
Post #1 of 6
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Dodge ram Overheating
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I have a 1998 Dodge ram 1500 2wd with the 5.2 v8 (318) it started to overheat one day to about 240 then dropped back down to the 190 area like normal and ever since then it will overheat sometimes then go to normal and then other times it will go all the way over the 260 red mark. it has a brand new thermostat. and radiator. it doesnt leak at all. is it the water pump? Can a water pump randomly work and not work like that?
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(This post was edited by Hammer Time on Feb 28, 2011, 5:33 AM)
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 28, 2011, 5:35 AM
Post #2 of 6
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Re: Dodge ram Overheating
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I would check the coolant level and pressure test the cooling system. It could be seeing air pockets from being low on coolant. The water pump wouldn't be intermittent but it could have damaged impellers.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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98ramdodge
Novice
Feb 28, 2011, 11:08 AM
Post #3 of 6
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Re: Dodge ram Overheating
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The coolant level is good and did a pressure test already and its good too.
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Hammer Time
Ultimate Carjunky
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Feb 28, 2011, 11:39 AM
Post #4 of 6
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Re: Dodge ram Overheating
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Are you saying the coolant is never low?
Are you sure the temp gauge is accurate at all times?
If you can positively confirm both of those things and it overheats even at highway speeds, then it has to be a circulation problem. I have seen some water pump impellers worn off but mostly on Fords
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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98ramdodge
Novice
Feb 28, 2011, 7:21 PM
Post #5 of 6
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Re: Dodge ram Overheating
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the over flow tank sometimes gets low and then fills back up itself and im gonna check the accuracy of the temperature next time it says its overheating. i borrowed a laser thermometer to check the top hose when it says its overheating.
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Hammer Time
Ultimate Carjunky
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Feb 28, 2011, 7:45 PM
Post #6 of 6
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Re: Dodge ram Overheating
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The rubber doesn't transmit heat well. Check it at the thermostat housing. That will be the hottest point.
You need to look at the coolant level when it's dead cold, before it is driven.
Make sure you're checking inside the radiator if it has a cap.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Feb 28, 2011, 7:46 PM)
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