Farm Equipment - OT - truck trans temp?

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OT - truck trans temp?

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Topic: OT - truck trans temp?

Posted By: Eric[IL]
Subject: OT - truck trans temp?
Date Posted: 04 May 2011 at 6:32am

Does anyone know what is a normal manual transmission temperature? I am running 2 big electric fans on my 2000 Ford F350 truck radiator. It is now equipped with a 5.9L 12V cummins and I am seeing a 180-190 F range on its 6spd manual trans. The reason I ask is that I could mount a 3rd electric fan for the trans if necessary. I have no prior knowledge of what is normal for a transmission temp.

Replies:

Posted By: Bob D. (La)
Date Posted: 04 May 2011 at 6:34am

Seems I always thought the goal,at least for automatics was to keep temp below 250 degrees.

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When you find yourself in a hole,PUT DOWN THE SHOVEL!!!

Posted By: jaybmiller
Date Posted: 04 May 2011 at 7:03am

Does your manual tranny actually have 'plumbing' connecting it to a cooler in the rad? If so, that's new to me!

I've always added an extra cooler to my automatic vehicles with trailer hitches,figuring $50 now was better spent than a couple thousand later.

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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water

Posted By: Dave in il
Date Posted: 04 May 2011 at 8:49am

If it has a trasmission cooler you would have more luck adding a larger cooler rather than another fan. If you engine is running normal operating temps and your manual trans doesn't have a cooler then adding more fans won't make a difference.

Posted By: Brian Jasper co. Ia
Date Posted: 04 May 2011 at 1:05pm

I forget right off when they started doing it, but yes, Ford does use the same radiator cooler for the automatic trans on a manual. That being the case, I'd say it's not too far off. Just be sure you're using the correct fluid for the trans. Many times it's ATF...

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: John (C-IL)
Date Posted: 04 May 2011 at 2:12pm

On my Freightliner the trans temp will usually get to be very near the engine temp. I know they are two different trucks, but I wouldn't think that 180 t0 190 would be out of line. The important part is if the oil you are using is good for that temp level.

Posted By: Eric[IL]
Date Posted: 04 May 2011 at 10:09pm

Yes, the truck was built at the factory with a transmission cooler (fin core) that is positioned in front of the engine radiator. Yes, it has the correct transmission oil. I guess the transmission has a pump that circulates its fluid thru the cooler? Today, I was running loaded (pulling a 27' gooseneck trailer) and the trans temp leveled off at 210 F degrees. So, it sounds like it is within a normal range. Thanks everyone for your input.

Posted By: 427435
Date Posted: 04 May 2011 at 10:31pm

What oil is spec'd for the transmission? Is it a synthetic??

My MH (2000 V10 with 4 speed auto) normally runs around 160, but will climb to 210-220 on a long uphill pull. The GCW is around 26,000 lbs and I'm using Mobil 1 ATF.

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Mark

B10 Allis, 917 Allis, 7116 Simplicity, 7790 Simplicity Diesel,
GTH-L Simplicity

Ignorance is curable-----stupidity is not.