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Discussion Starter · #1 ·
2005 5.9l 4x4 4" lift rickson 19.5 wheels 265/70r tires pacbrake exhaust brake. i am trying to pull a 5th wheel approx. 14,000 lbs fully loaded, it does ok on level but heats up on hills untill lights & bells go off. replaced radiator & thermostat. water pump seems fine but the electric fan has some resistance not a lot but some 1/4 of 360 degrees could this be the cause? or could it be the bigger tires i don't have the originals any more. or could it be the pacbrake restricting the flow, i checked and it is opening all the way. it also has a smarty on it. i have dumped so much money into MY SUPER RAM my ford friends are laughing and my wife ain't she just wants to go on our 2nd honeymoon ! we had to turn back twice now HELP
 

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Confirm if electric fan is working or not. Mine had resistance but was not working properly. I replaced it and all was well.

Got any codes? Turn key to run then off 3 times and the codes will display on dash.

A fully engaged fan clutch makes some noise. You should here it when pulling a hill with a trailer. You should also here it it when the A/C is on. Is you A/C plenty cold at idle? Faulty fan clutches effect the A/C especially at idle.

Also make sure there is nothing restricting air flow through radiator.
 

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towing

I might be wrong but isn't 14k pushing tow capacity?
 

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Mr. Vehicle Destroyer
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If the fan clutch isn't engaging it won't pull air into the radiator like it is supposed to and its temp will creep up. If it starts happening again, turn the defrost or a/c on and see if that helps the situation. Either of those functions will command the electrical lock up of the fan clutch and force it to pull air through the radiator.
 

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TECH SPECIALIST
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after you check the electric lockup fan clutch like the guys said above:

auto tranny?
if so, the stock OEM Slip Master Dodgematic torque converter slips and overheats worse than a 50 year old stretched out whore on meth. get a triple disc TC, an upgrade valve body and the soleniod upgrade from one of the site sponsors. Add a torque converter lockup switch.
use a real 100 PAO/ester ATF like Amsoil or Redline. add a high capacity cooling pan to the tranny.
best bang for the buck
http://www.summitracing.com/parts/DER-14210/?rtype=10

No slip =s far less heat.

coming up to the hills, double tap the Tow/Haul button to lock the transmission into 3rd and pop on the TC lockup switch. shift down to 2nd if the rpms drop below 2k.
you're massively overloading the tranny in 4th OD lockup with the overly large 19.5 rim/tires and the over spec tow load for just a 4 speed auto tranny.

anytime the TC is out of lockup, it's fluid coupling slipping and pumping massive amount of heat into the ATF

the 48RE is not designed for heavy towing behind a narrow rpm range diesel like the Cummins. far too wide gears changes to keep the Cummins happily in it's torque power band on a hard pull. Chrysler/Dodge does not have the financial or engineering depth to build outstanding transmissions in any category.

an EGT gauge is mandatory for long engine life on a Cummins. these HPCR engines are easily turned into melted aluminum
 

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pan

do you happen to know how many additional qts. that pan adds?
 

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2005 5.9l 4x4 4" lift rickson 19.5 wheels 265/70r tires pacbrake exhaust brake. i am trying to pull a 5th wheel approx. 14,000 lbs fully loaded, it does ok on level but heats up on hills untill lights & bells go off. replaced radiator & thermostat. water pump seems fine but the electric fan has some resistance not a lot but some 1/4 of 360 degrees could this be the cause? or could it be the bigger tires i don't have the originals any more. or could it be the pacbrake restricting the flow, i checked and it is opening all the way. it also has a smarty on it. i have dumped so much money into MY SUPER RAM my ford friends are laughing and my wife ain't she just wants to go on our 2nd honeymoon ! we had to turn back twice now HELP
So still waiting for the Auto or Manual answer.

While you at it it would be nice to know your gear ratio, but you are not helping anything by running the 19.5" wheels with 265/70 tires.:doh:

14,000 is also pushing the tow capacity especially if the Transmission is still stock. If you want to tow heavy especially in the hills you will need to beef up your transmission.:doh:

Do you have a trans temp gauge, and or a EGT gauge?:doh:

Putting a Smarty no without Beefing up your transmission, and the bigger tires is an invitation to a hefty Transmission repair bill.:banghead:
 

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Discussion Starter · #9 · (Edited)
oh ya forgot to mention had georand build the tranny w/billit shaft & triple plate torque converter [ sorry about that 64yrs memory problems ] thanks too you all for your time at my age it truelly is precious. the turning the key on & off thing worked great it came w/3 codes all pointing to the fan clutch assy. or circuit hope it works dang i wish i'd known that when i had all the radiators out of the way. thanks again as you might quess im not very educated on diesels. i just wanted to retire and do some traveling w/5th wheel my son talked me into all these add ons and they all made sence, but i'm a retired corrections officer not a banker. my 2nd hornymoon might be as far as his side yard !!!!!! thanks again for your help. could you explain a little more about what i could do whith the shifting up the hills and what temp gages to get
 

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CAPTAIN DILLIGAF
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:thumbsup: KNOWING NOW YOU HAVE AN AUTO THE 2 MAIN GAUGES ARE TRANNY TEMP AND PYROMETER WHICH READS YOUR EGTS = EXHAUST GAS TEMPS THAT WILL GET YOU STARTED

YOU CAN LOOK UP LOTS OF VENDORS ON HERE THAT CAN GET YOU EXACTLY WHAT YOU NEED FOR GAUGES
 
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