I've purchased a Hayden 676 automatic transmission oil cooler for our 2008 GD and have an install question: where to run the cooler's supply and return hoses?

The cooler easily mounts in front of the A/C condenser radiator by bolting it to the front bumper ... not the plastic shroud but the steel U-channel beam behind it.

You then need to (a) run a 3/8" supply hose from the outlet in the bottom of the engine radiator and (b) a 3/8" return hose to the existing hose that supplies cooled oil to the front of the transmission.

There's only sufficient space to run the supply hose past the bottom corner of the A/C Condenser, particularly if you enclose the hose in pipe insulation.

I tried running the return hose past the top corner of the A/C condenser but there are two problems. First, it limits access to the engine radiator's expansion tank and the transmission dip stick. Second, the hose rubs against existing clips, the condenser, and body work. Not good.

A second route is over the top of the condenser near the center support bracket. In this case the issue of rubbing against metal parts remains but the hose also runs behind one of the two radiator fans where it would immediately re-heat the oil! Also not good.

So, if anyone has successfully installed an automatic transmission oil cooler I'd be very interested to know:

(1) Where you installed the cooler
(2) Where you ran the cooler's supply and return hoses

Thanks!

BTW ... all of this is also valid if you're installing a B&M 70255!

 

Just curious, what are you doing with your Fit that you find the stock cooler inadequate?

 

Living in the Phoenix AZ metro area!

Last year we had 35+ days above 110F of which 10 days were above 115F and one reached 118F.

 

yeah i don't blame you do you run mostly highway or city and they have other cooling solutions forget them all but i would lookit up if i were you it could save you money to

 

https://www.fitfreak.net/forums/fit-...kevin1107.html

 

Thanks Koi,

I see he chose to route the supply/return hoses between the condenser and driver-side fender wall. I tried that but there is definite rubbing of the hoses. I encased the return (cold) hose in insulation to eliminate the rubbing and heat transfer between hoses but, after only one week, the insulation was deformed and tearing.

I've purchased a set of 3/8" cushioned clamps and will try to find a solution this weekend.

I'll then update the post ...