i wonder if the blades are backwards. the blades in the summit pic are turned the other way than the ones i have. and the one on the flex a lite web site and they send theres as pullers.

 

they feel to me like they are set up for pusher. my shirt floped around alot more when wired for pusher as appose to wired as puller. i just hooked them to the battery to check. but the blade are rusted in the middle so i can't get the blades off to swap the, around lol.

 

has anyone thought, that it also might be a faulty thermostat, since the thermostat is aftermarket.

just an idea to think about, everyone is on the airflow idea, just thought id revert to a coolant issue.

ive been stunted before at ideas i figured would NEVER be the problem.

 

grrr nevermind, i missed a post, my bad,

hey though, u could have TWO faulty thermostats, lol,

probobaly not

-jared

 

lets spray them with WD40 and get them blades turned around. They always looked backwards to me. Those fans should have no problem. Other than maybe the blades being backward, the fans are great. I'll look at the blades on the Yukon and see how they are.

You should just find a wrecked truck and get the whole 34" rad/fan setup. That would fix it for sure.

I still thing the part throttle timing has something to do with it.

 

i'm running 40* at part throttle at 70 mph 25-28% throttle the only time it goes below that is going up inclines and going around peolpe and then it has to or it gets kr from the load. i tried swapping the blades on one it wasn't happening. i would like to get the whole set up but money isn't gonna let that happen. i put they wind deflectors back on last night. with those things out the air will definatly go around the rad and not through it they make big gapping holes on both sides so i put those back in last night now air comming through the grille has no choice but to flow through the rad.

 

what are ya'll doing today? I'm watching trucks and the power block.

 

ok I know this way late but I have a problem and it's overheating, my 2005 Tahoe tempreature is reising without stopping.
what can be the reason for that?
fans are working, no thermostat.

 

i haven't heard of any newer trucks over heating what have you done to it. start a new thread too. a few more people might chime in if you do.

 

Are you saying there's no thermostat installed? I may be wrong about this but I think this would make the computer think the motor never warms up completely. The computer keeps it running in some kind of warm-up loop and it overheats the motor.