itsacrazyasian
New member
Completed the retrofit on my 2010 tonight. Cooler bolted in using a shared bolt with the acc unit and i drilled and tapped the bumper support for the passenger side. First thing, the MAJORITY of cooling is in the new thermostat assy. It opens at a much lower temp. I would see 220 before tooling around town, with just the new thermostat assy i was at a fairly constant 200 in the same driving fashion on the same day.
I noticed the trans was burning fluid after having my ptu replaced and the ford tech recommended a trans service even though i had just flushed it myself 25K ago using motorcraft mercon LV.
Onto the hard part.
The hoses do not fit with the acc unit as someone else had pointed out before. I had two options, make my own T to run them in parallel like Ford does or run them in series. I first took note of the cooler fluid pressures stock. 20psi on my flush machine. I cut into the rubber section of my stock cooler line assy and ran hose to the new cooler like ford had designed. Note: Ford runs the junction to the new cooler at the end of the T in their new line assy. This is designed this way to run the majority of fluid flow through the auxiliary cooler. I modified my line with this in note. No pressure drop noted. Temps now at ~180 running around town. For kicks, I yanked my bumper back off and ran the cooler in series with the stock condenser/cooler assy so the fluid came from the trans, through the stock cooler, then through the aux cooler. No pressure drop noted again. Biggest surprise here, dropped the fluid temp about another 10 degrees average.
This does involve modifying your stock line assy, a hacksaw, and a few feet of 1/2in oil cooler hose (do not use heater hose!)
Pics to follow. They're on my phone. Need to upload sometime tommorow after i get my head out from under my old diesel suburban again.
I noticed the trans was burning fluid after having my ptu replaced and the ford tech recommended a trans service even though i had just flushed it myself 25K ago using motorcraft mercon LV.
Onto the hard part.
The hoses do not fit with the acc unit as someone else had pointed out before. I had two options, make my own T to run them in parallel like Ford does or run them in series. I first took note of the cooler fluid pressures stock. 20psi on my flush machine. I cut into the rubber section of my stock cooler line assy and ran hose to the new cooler like ford had designed. Note: Ford runs the junction to the new cooler at the end of the T in their new line assy. This is designed this way to run the majority of fluid flow through the auxiliary cooler. I modified my line with this in note. No pressure drop noted. Temps now at ~180 running around town. For kicks, I yanked my bumper back off and ran the cooler in series with the stock condenser/cooler assy so the fluid came from the trans, through the stock cooler, then through the aux cooler. No pressure drop noted again. Biggest surprise here, dropped the fluid temp about another 10 degrees average.
This does involve modifying your stock line assy, a hacksaw, and a few feet of 1/2in oil cooler hose (do not use heater hose!)
Pics to follow. They're on my phone. Need to upload sometime tommorow after i get my head out from under my old diesel suburban again.