dirtautoguy
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- Joined
- Jul 22, 2015
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On my 1996 k1500 with a 4l60e I have converted it to electric fans from a newer chevy and they work great.
some minor issues I have come across is the trans cooler. I currently have it running to the radiator cooler and then exiting to a cooler in front of the axle condenser and then back to the trans. I have found that with the electric fans the trans cooler does not get air flow and the trans gets warm.
I most recently discovered this towing my camper on a crappy road going slow. The motor stayed very nice temp of about 193 but the trans was trying to get over 200. I flipped the manual override on my fan and it dropped the trans to 150 in very short order.
this made me do some thinking. If the trans cooler had its own temperature controlled fan maybe I could remedy this problem for slow mountain driving. So I got a 9 inch fan and mounted to the front of the cooler as pusher fan.
on the highway it hasn’t made any difference in temperatures they stay nice and cool. We went for a slow ride on a really bad road up a logging road last night and I tried it out. (Currently it’s just wired to a switch but will be temp controlled later). Anyway it’s all up hill one way and down hill the other way. I had the truck in manual 1st puttering at about 800 rpm and the trans climbed eventually to 180. I switch the fan on and it took a good amount of time but it only dropped to 175.
after we got out of the crappy road stuff I put it in OF and mostly coasted out at about 15mph fan off and it dropped to 145 in quite quickly.
so I know a pusher fan is not
Ideal but I believe it will work but I’m not sure what to think of this trend.
Either my fan really sucks in the way that it shouldn’t Doesn’t feel like it?
I read somewhere that at certain times with the torque converter the trans will not send fluid to the cooler. But I can’t find it now and I can’t find anything else about it.
my other thought to was maybe in OD I had a higher rpm which moved more fluid to cool off?
am I missing something here? I don’t think anything is wrong I just am trying to understand the trends so I can keep an eye on it.
some minor issues I have come across is the trans cooler. I currently have it running to the radiator cooler and then exiting to a cooler in front of the axle condenser and then back to the trans. I have found that with the electric fans the trans cooler does not get air flow and the trans gets warm.
I most recently discovered this towing my camper on a crappy road going slow. The motor stayed very nice temp of about 193 but the trans was trying to get over 200. I flipped the manual override on my fan and it dropped the trans to 150 in very short order.
this made me do some thinking. If the trans cooler had its own temperature controlled fan maybe I could remedy this problem for slow mountain driving. So I got a 9 inch fan and mounted to the front of the cooler as pusher fan.
on the highway it hasn’t made any difference in temperatures they stay nice and cool. We went for a slow ride on a really bad road up a logging road last night and I tried it out. (Currently it’s just wired to a switch but will be temp controlled later). Anyway it’s all up hill one way and down hill the other way. I had the truck in manual 1st puttering at about 800 rpm and the trans climbed eventually to 180. I switch the fan on and it took a good amount of time but it only dropped to 175.
after we got out of the crappy road stuff I put it in OF and mostly coasted out at about 15mph fan off and it dropped to 145 in quite quickly.
so I know a pusher fan is not
Ideal but I believe it will work but I’m not sure what to think of this trend.
Either my fan really sucks in the way that it shouldn’t Doesn’t feel like it?
I read somewhere that at certain times with the torque converter the trans will not send fluid to the cooler. But I can’t find it now and I can’t find anything else about it.
my other thought to was maybe in OD I had a higher rpm which moved more fluid to cool off?
am I missing something here? I don’t think anything is wrong I just am trying to understand the trends so I can keep an eye on it.