you have two fans. a clutch driven engine fan, and then a separate auxiliary fan.
I am assuming you are hearing the auxiliary fan.
I am assuming you are hearing the auxiliary fan.
Engine temp is high enough to kick it on or temp sensor is screwy, does the superchips tell you engine temp?We have 2 fans? That's news to me. Do I have a problem then? Why would the aux fan come on in 50 degree weather?
Temps have been pretty mild here lately and I have noticed that my fan comes on as soon as I sit at a stop sign or red light. If I sit for more than a few minutes it goes to high. I don't remember this as being normal. I can freely spin the fan by hand after I turn the truck off, this pretty much rules out the clutch right? Should I try changing out the coolant temp sensor? Anything else?
sounds like my problem except that mine is basically on all the time. I suspect it may be the reason my mpg's have been down this summer too. going to have to take a look at the coolant (which I've never added any so I'm not even sure what is best to add).Hi Guys,
I know this is an older thread but, I've been looking around the forums and noticed this seemed to be the closest to my issue. As the season warms up to the 28-30C temps here the fan seems to kick in a lot more! after 5-10 mins of driving stopping at lights the fan kicks in. I think its the clutch fan. As i step on the gas at a green light it keeps on and it sounds like a damn mac truck going. It never shuts off. Would you think cuz its just to hot outside or low on coolant? I just had my truck in at nissan a few weeks ago for the 90,000 km (i think thats the right one) where they change all the fluids and check over the vehicle. I did have the Idle kicked up a little bit to overtake when i turn the A/C on a long time ago. What do you guys think?
Nick
If your truck is an 05, it's time to change the coolant. Just use distilled water if you mix 50-50. Seriously look into that fan situation, it should cycle, and not run all the time.sounds like my problem except that mine is basically on all the time. I suspect it may be the reason my mpg's have been down this summer too. going to have to take a look at the coolant (which I've never added any so I'm not even sure what is best to add).
whats the best stuff to use and best way to dispose of the old stuff?If your truck is an 05, it's time to change the coolant. Just use distilled water if you mix 50-50. Seriously look into that fan situation, it should cycle, and not run all the time.