Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Cool down my ytrans

Thread Tools
 
Search this Thread
 
Old Dec 22, 2014 | 05:53 AM
  #1  
David7.3's Avatar
David7.3
Thread Starter
|
Postmaster
Joined: Jun 2014
Posts: 3,206
Likes: 3
From: Oakhust NJ Jersey Shore
Cool down my ytrans

I was wondering if any one ever bypassed the trans t-stat and removed the cooler from the radiator? Riff Raff makes the transmission adaptors to remove the stat, and then I can cap off the radiator and just use my 6.0 cooler. I have a temp gauge and normally run 180-190, but while plowing heavy snow it goes up to 230 plus, every so often I have to stop and let it cool down. I have alot invested in my trans and torque convertor, they always say a cool transmission adds life to it but is too cool a problem as well? Just want to check if anyone has done it before or maybe Tugly you would know if you see a problem with that? thanks for your time, I also have a 203 t-stat in the truck, got great heat now. maybe thats why the trans is alittle hot during pushing.
 
Reply
Old Dec 22, 2014 | 08:08 AM
  #2  
ScaldedDog's Avatar
ScaldedDog
Fleet Mechanic
15 Year Member
Photogenic
Loved
Community Favorite
Joined: Aug 2010
Posts: 1,458
Likes: 156
From: Sedalia, CO
Club FTE Silver Member

I can't see your signature from my phone but, unless you've added one, your 4r100 doesn't have a thermostat. Removing the OtW cooler will reduce cooling, not increase it.

I've never plowed snow, but can you do it in low range? That might help.

Mark
 
Reply
Old Dec 22, 2014 | 08:13 AM
  #3  
David7.3's Avatar
David7.3
Thread Starter
|
Postmaster
Joined: Jun 2014
Posts: 3,206
Likes: 3
From: Oakhust NJ Jersey Shore
It Has it, The black pipe that goes from one cooler line to the other, right on the trans, then the steel cooler lines run off that to the rad. and to my 6.0 cooler. Most of then trucks have them. It bypasses the fluid till it hits a certain temp then lets the fluid flow fully to the coolers.
 
Reply
Old Dec 22, 2014 | 08:13 AM
  #4  
grec-o-face's Avatar
grec-o-face
Posting Guru
Joined: Apr 2010
Posts: 1,112
Likes: 0
From: South Shore, MA
Originally Posted by David7.3
... I have a temp gauge and normally run 180-190, but while plowing heavy snow it goes up to 230 plus, every so often I have to stop and let it cool down.
Are you sure you're truck has both coolers? Is the factory (cold side) radiator cooler plumbed correctly?

Originally Posted by David7.3
I have alot invested in my trans and torque convertor, they always say a cool transmission adds life to it but is too cool a problem as well? ...
There is such a thing as too cool of a transmission temp. I'm certainly not the trans expert, but as far as I know, the IDEAL operating temperature is appx 170*.

I plow snow as well, and I've only seen temps reach highs in the 180* range.
 
Reply
Old Dec 22, 2014 | 08:19 AM
  #5  
bigb56's Avatar
bigb56
Logistics Pro
15 Year Member
Photogenic
Liked
Loved
Joined: Aug 2009
Posts: 3,609
Likes: 324
From: Arizona
Club FTE Silver Member

What about air flow? You might not be getting enough when plowing. You could try an electric fan to assist the engine fan at low speeds. Might also check the fan clutch. I saw some nice twin electric fans to fit the Superduty at Jegs.
 
Reply
Old Dec 22, 2014 | 08:25 AM
  #6  
David7.3's Avatar
David7.3
Thread Starter
|
Postmaster
Joined: Jun 2014
Posts: 3,206
Likes: 3
From: Oakhust NJ Jersey Shore
Aaron I have the two coolers, never messed with them besides swapping in the 6.0 cooler. I have the 9.5 fisher XV2 with the flared wings and the temp only goes up when I'm windrowing at Exxon/Mobile, A huge account we have up here, the lockers keep the truck from pushing off, so I can tell that i'm pushing alot of weight and when I cant push anymore I call the loader in with the snowbox, that's when I give the trans a rest.
 
Reply
Old Dec 22, 2014 | 08:28 AM
  #7  
grec-o-face's Avatar
grec-o-face
Posting Guru
Joined: Apr 2010
Posts: 1,112
Likes: 0
From: South Shore, MA
Originally Posted by bigb56
What about air flow? You might not be getting enough when plowing. You could try an electric fan to assist the engine fan at low speeds. Might also check the fan clutch. I saw some nice twin electric fans to fit the Superduty at Jegs.
I'm my experience, lack of airflow really hasn't been an issue for me. The low radiant temps help to keep other most fluid temperatures down.

Quality gauges, using LOW when you need to, and keeping the grill free from ice build-ups are all part of the game. Plowing snow (large scale) can be a serious process.
 
Reply
Old Dec 22, 2014 | 08:29 AM
  #8  
David7.3's Avatar
David7.3
Thread Starter
|
Postmaster
Joined: Jun 2014
Posts: 3,206
Likes: 3
From: Oakhust NJ Jersey Shore
Originally Posted by bigb56
What about air flow? You might not be getting enough when plowing. You could try an electric fan to assist the engine fan at low speeds. Might also check the fan clutch. I saw some nice twin electric fans to fit the Superduty at Jegs.
Ya I saw them too and I like!!!! but the engine temp stay's right where she normally is, with the plow down, because of the lift and tires the grill is not blocked by anything, and the fan clutch is working I can hear the roar when she is engaged.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-1

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-2

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-3

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-4

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-5

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-6

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-7

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-8

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-9

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
Old Dec 22, 2014 | 08:47 AM
  #9  
grec-o-face's Avatar
grec-o-face
Posting Guru
Joined: Apr 2010
Posts: 1,112
Likes: 0
From: South Shore, MA
Originally Posted by David7.3
... because of the lift and tires ...
Hmmm... interesting. Stock axle ratios? Probably 3.73?
With both coolers in place, one being the beloved 6.0 trans cooler, you should be in pretty good shape. Of course plowing is hard on the transmission, and the slow speeds certainly don't help cooling - but your tire size might be making even more work for the transmission. Could just be one of those, "it all adds up to" situations...
 
Reply
Old Dec 22, 2014 | 10:21 AM
  #10  
ScaldedDog's Avatar
ScaldedDog
Fleet Mechanic
15 Year Member
Photogenic
Loved
Community Favorite
Joined: Aug 2010
Posts: 1,458
Likes: 156
From: Sedalia, CO
Club FTE Silver Member

Originally Posted by David7.3
It Has it, The black pipe that goes from one cooler line to the other, right on the trans, then the steel cooler lines run off that to the rad. and to my 6.0 cooler. Most of then trucks have them. It bypasses the fluid till it hits a certain temp then lets the fluid flow fully to the coolers.
Ahhh, as you have been told before, that is not a thermostat.

Mark
 
Reply
Old Dec 22, 2014 | 10:28 AM
  #11  
M-S-G's Avatar
M-S-G
Senior User
Joined: Nov 2014
Posts: 436
Likes: 0
Originally Posted by ScaldedDog
I can't see your signature from my phone but, unless you've added one, your 4r100 doesn't have a thermostat. Removing the OtW cooler will reduce cooling, not increase it. I've never plowed snow, but can you do it in low range? That might help. Mark

What he DOESN'T have is OTW cooler. It's a 99.

I would also love to know what is the next step after getting the 6.0 cooler if you LACK the OTW cooler like the OP and me do.
 
Reply
Old Dec 22, 2014 | 10:44 AM
  #12  
ScaldedDog's Avatar
ScaldedDog
Fleet Mechanic
15 Year Member
Photogenic
Loved
Community Favorite
Joined: Aug 2010
Posts: 1,458
Likes: 156
From: Sedalia, CO
Club FTE Silver Member

Originally Posted by M-S-G
What he DOESN'T have is OTW cooler. It's a 99.

I would also love to know what is the next step after getting the 6.0 cooler if you LACK the OTW cooler like the OP and me do.
Perhaps I misunderstood, as I thought he was wanting to remove the OtW cooler.

If you don't have one, could you just replace the radiator with one that includes the OtW cooler and plumb it up before the 6.0 cooler?

Mark
 
Reply
Old Dec 22, 2014 | 10:47 AM
  #13  
M-S-G's Avatar
M-S-G
Senior User
Joined: Nov 2014
Posts: 436
Likes: 0
Originally Posted by ScaldedDog
Perhaps I misunderstood, as I thought he was wanting to remove the OtW cooler. If you don't have one, could you just replace the radiator with one that includes the OtW cooler and plumb it up before the 6.0 cooler? Mark
Yes. If you're made of money it is bolt on replacement 01+.

I would love to know if adding an extra tranny cooler in front of the rad helps at all. That should be a 1h job.
 
Reply
Old Dec 22, 2014 | 11:01 AM
  #14  
mototrig's Avatar
mototrig
Tuned
10 Year Member
Photogenic
Liked
Joined: Oct 2012
Posts: 391
Likes: 7
It's my understanding that the OTW cooler is beneficial at slower vehicle speeds. I can't imagine there'd be much air flow at the speed of plow. In this case IMO I think upgrading to an 01+ radiator with the OTW cooler would benefit the OP.
 
Reply
Old Dec 22, 2014 | 11:16 AM
  #15  
timmyboy76's Avatar
timmyboy76
Lead Driver
Joined: Sep 2010
Posts: 7,793
Likes: 50
mines a L99...OTW here.

OP, Shake-N-Bake had a tthread about a year ago where he removed the radiator to have it cleaned out. He couldn't believe how caked it was, between fins...has before/after pics. Clearly, you can see, right thru the darn thing, after the fact....something to think about
 
Reply



All times are GMT -5. The time now is 10:27 PM.

story-0
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-05-30 18:33:59


VIEW MORE
story-1
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-2
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-3
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-4
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-5
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-6
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-7
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-8
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-9
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE