running Hot or not?
#1921601
09/29/15 12:57 AM
09/29/15 12:57 AM
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Posts: 6,257 gulfport, ms, west mi
rowin4
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I have a 04 dodge 3500 with 5.9 diesel with a automatic trans. Noticed today as I was traveling through some hilly roads pulling along about 12,000 pounds behind me the temp gauge rose quickly after the trans dropped out of overdrive/lock up.. It went to the top end of the scale but then as I crested the hills and the trans shifted the engine temp gauge dropped back down to normal within a mile. Never did this before so I checked the radiator , oil and trans fluid. All were they should be. Now what could cause this to happen.
it's ok to butt heads, just don't do it with a butthead
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Re: running Hot or not?
[Re: rowin4]
#1923188
10/01/15 11:38 AM
10/01/15 11:38 AM
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Posts: 6,257 gulfport, ms, west mi
rowin4
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I don't know if that would be it. The antifreeze has been changed out twice, both time when the water pump was replaced. I will check into that . A friend of mine thought maybe the turbo might be going bad. I don't know how to check that. The engine runs fine , gets good fuel milage, both towing and normal daily driving. How would the turbo be checked?
it's ok to butt heads, just don't do it with a butthead
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Re: running Hot or not?
[Re: rowin4]
#1923435
10/01/15 04:08 PM
10/01/15 04:08 PM
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Posts: 6,257 gulfport, ms, west mi
rowin4
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The lock up is working, when it up shifts as you say the lock up acts like another gear.
it's ok to butt heads, just don't do it with a butthead
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Re: running Hot or not?
[Re: rowin4]
#1923444
10/01/15 04:25 PM
10/01/15 04:25 PM
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Joined: Feb 2003
Posts: 10,178 Someplace you aren't
SomeCarGuy
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Check the rad with a temp gun and see if you can find hot and cold spots. I know a decade of hard work usually means my diesels needed a thorough cleaning to cut down on temp rise like you are seeing.
I want my fair share
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Re: running Hot or not?
[Re: rowin4]
#1923743
10/01/15 09:58 PM
10/01/15 09:58 PM
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Posts: 6,257 gulfport, ms, west mi
rowin4
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Will do, I do have a laser temp gun that I use to check wheel bearing temps on the trailers.
it's ok to butt heads, just don't do it with a butthead
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Re: running Hot or not?
[Re: SomeCarGuy]
#1925546
10/04/15 01:16 PM
10/04/15 01:16 PM
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70Cuda383
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After a WOT blast, I can watch my gauge go from 195-ish to 215-ish but the right back down. I'd say working hard up a hill, I would expect to see some temp rise. Not sure if be comfortable if it pegged though.
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Re: running Hot or not?
[Re: rowin4]
#1925818
10/04/15 10:14 PM
10/04/15 10:14 PM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
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I have a 04 dodge 3500 with 5.9 diesel with a automatic trans. Noticed today as I was traveling through some hilly roads pulling along about 12,000 pounds behind me the temp gauge rose quickly after the trans dropped out of overdrive/lock up.. It went to the top end of the scale but then as I crested the hills and the trans shifted the engine temp gauge dropped back down to normal within a mile. Never did this before so I checked the radiator , oil and trans fluid. All were they should be. Now what could cause this to happen. Sounds like air in the cooling system to me. Should use a vacuum filler to be sure to get all the air out with today's cooling systems with very small openings in the radiator and heater core, easy to have air trapped in those during refills and cause those problems. I used to fight that problem until I started using one.
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Re: running Hot or not?
[Re: rowin4]
#1926859
10/06/15 08:52 AM
10/06/15 08:52 AM
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Joined: Feb 2005
Posts: 28,312 Cincinnati, Ohio
Challenger 1
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Cincinnati, Ohio
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I have never heard of a vacuum filler, I 'll google it . This is the one I use. I had trouble getting coolant to flow through heater cores and making heat for the cab after changing coolant. This solved that and is a must on some vehicles now a days. Link
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Re: running Hot or not?
[Re: rowin4]
#1927152
10/06/15 04:55 PM
10/06/15 04:55 PM
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Joined: Jun 2005
Posts: 6,257 gulfport, ms, west mi
rowin4
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I did a Google search, watched a you tube video, looks like a procedure that should be done each time there is a coolant change. Thanks for the info.
it's ok to butt heads, just don't do it with a butthead
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