hey guys i gota 97 f250 single cab with 231k my trans was rebuilt with 20k ago and had a billet torque converter put in it. IT has the stock trans cooler. After driving it around for 30min pulling away from a light it was holding 1st gear so i left off and hit the gas until 2,000rpms thenit shifted fine its been doing it for about a week now i have the E40D trans any help to what the problem is. Thanks everyone

 

What temps is the trans hittin?

 

i dont know i dont have any gauges to tell me

 

Might want to get some gauges...

 

yeah iam going to. You think is just the trans cooler isnt cooling enough. i think iam going to upgrade my transcooler and see if thats the problem

 

The guy who rebuilt my transmission has been a master Ford Tech for over 20 years and Diesels are his specialty. He told me that stock trans cooler that Ford used caused numerous break downs due to over heating. If your not finding a ton of metal in the trans when you pull the pan, I would highly suggest you upgrade to a larger cooler.

Right now I am waiting to get my fan powered trans cooler (have to recover the bank account after the trans rebuild) to add to my transmission. I upgraded the to the biggest cooler I could find when I had the tranny rebuilt, and yesterday in 90 degree temp pulling 8000# I only heated up to 160 but I still want a back up fan cooler.

 

i found a transcooler on xtremediesel for 50 bucks says it cools up to 20 degrees cooler you think i should find a better one?

 

I'd be leary of that deal...

Look into a tru cool cooler...

 

so i looked up the tru cool trans cooler and i probly going to get the cooler thats gvw for 24,000 i thinks its 80 bucks with out shipping

 

That sounds a lot better, you have to be really careful on to good to be true deals, especially when you are protecting a investment like a diesel which I am learning they can be expensive. But you get what you pay for and if your going to do it, do it right the first time. Good luck, also I would see if you have any metal in the pan and if you have a lot you might want to change the fluid and flush the tranny lines before you install the new cooler.

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and change your filter which I forgot to mention, that is what I get for thinking.