I have a @005 Excursion V10 with the 6.0 Trans cooler on it. Due to me being a bit silly about driving in the brush in the back yard, I put a small hole in the cooler. just a drip, drip drip. It is time to change the fluid anyway, so I was wondering if anyone has thoughts on whether to change the fluid first, or replace the cooler and change the fluid then? I guess I'm wondering if it will kick up junk into the new cooler

 

No, it won't kick up junk into the new cooler any more than normal running will kick up junk into the new cooler.

 

Thanks, Mark. I appreciate it.

I was thinking of prophetically replacing all the hoses and doing a rebuild kit on the bypass valve tube while I am at it. No exterior signs of problems, but after 13 years , it will be peace of mind. The Excursion just turned 100K miles the other day. It is mainly a tow vehicle for a travel trailer. I did all the engine coolant and heater hoses last year for the same reason. How long do they normally last, I wonder? Given their age, I am kind of surprised at their good condition. I guess the chemical technologies have long surpassed what I used to expect. In many ways a lot of the things we use today are far, far superior to what we had before. (I'm remembering the short service life of things back in the 60's, 70's, and 80's) I have gotten spoiled rotten.