Keeping coolant and transmission temps under control when towing in the summer heat

[mikeyss]

Ok. Only the driver’s side fan spools up to a higher speed.

Something is wrong, both fans run at the same speed.

They both should run at the same speed. This is the 5/5 setup

 

[Doubeleive]

Ok. Only the driver’s side fan spools up to a higher speed.

hm, not sure how you would troubleshoot that maybe check the resistance of each harness and both motors and see if one is different, on the 7/9 blade the motors are different for each side so the readings may be different as well

 

[gooffeyguy]

So for future reference I just measured the cfm of the 700w 7/9 rimmed blade (k5l) fans both sides measured approx 2300 cfm on high, measured inside the engine compartment right up against the fan, can anyone measure the dual 5 blade non rimmed 700w? You just need a anemometer

OK, I'm not sure if my readings are correct. I'm using the same model meter, have the same settings entered, and Don't have the K5L option, just the shroud #20923003 with the 5 blade rimless fans. They do get super loud on high and move a lot of air though.

My fans on low read 6600-7200 cfm. I didn't get a reading with them on high. When I first started the truck they were on high, but by the time I got the meter on and my phone camera on they switched to low. I even had the ac on auto and the temp set to like 62.

Here's driver's side fan


Passenger side

 

[Doubeleive]

OK, I'm not sure if my readings are correct. I'm using the same model meter, have the same settings entered, and Don't have the K5L option, just the shroud #20923003 with the 5 blade rimless fans. They do get super loud on high and move a lot of air though.

My fans on low read 6600-7200 cfm. I didn't get a reading with them on high. When I first started the truck they were on high, but by the time I got the meter on and my phone camera on they switched to low. I even had the ac on auto and the temp set to like 62.

Here's driver's side fan
View attachment 344888

Passenger side

View attachment 344889

hmm, what do you get for a reading on the hvac center vent. fan speed on high, air setting for front only, recirculation on. once you have the reading going you can just press the hold button for a photo.

 

[gooffeyguy]

hmm, what do you get for a reading on the hvac center vent. fan speed on high, air setting for front only, recirculation on. once you have the reading going you can just press the hold button for a photo.

 

[Doubeleive]

View attachment 344894

View attachment 344895

well one of our meters is wrong, mine reads like 1600cfm right there, I will contact the seller and see what they do, probably have to return it and get another one, it's probably mine because it gives erratic readings at lower speed.

 

[Tozan]

Well it took 2 nights of reading but, I made it... lol
I have the cold case in mine and I run a External 12" Transmission Cooler - Dual Pass that cold case sells.

My cold case internal cooler has a defective fitting so they sent me the dual pass cooler...

After driving an hour in 112 Phoenix weather It can hit 250 degrees but, on the highway it will hover around 225 to 230.

I once pulled a trailer in 105 degree and when running up a few hills coming out of Vagas at 70 mph it actually hit 280.

Thanks for giving me some ideas to think about reading your posts...

 

[Geotrash]

Well it took 2 nights of reading but, I made it... lol
I have the cold case in mine and I run a External 12" Transmission Cooler - Dual Pass that cold case sells.

My cold case internal cooler has a defective fitting so they sent me the dual pass cooler...

After driving an hour in 112 Phoenix weather It can hit 250 degrees but, on the highway it will hover around 225 to 230.

I once pulled a trailer in 105 degree and when running up a few hills coming out of Vagas at 70 mph it actually hit 280.

Thanks for giving me some ideas to think about reading your posts...

Are you talking transmission temps ? You definitely want a functioning oil to water cooler in the radiator for the transmission. An external cooler alone won't cut it.

 

[1BADI5]

This the fan shroud in my '10 PPv

 

[Tozan]

Are you talking transmission temps ? You definitely want a functioning oil to water cooler in the radiator for the transmission. An external cooler alone won't cut it.

Yes those are my trans temps.