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I have a flashpaq (3865) and I recently removed the mechanical clutch fan on my ram. I adjusted the electric fan setting using the tuner so that the electric fan would now come on at a lower temperature around what the thermostat temperature is (~200 deg F). Everything works fine, the fan pulls enough air to keep the engine cool and all, but once I start moving and the fan is no longer needed (the temp goes down) the fan never shuts off. There is only one setting in the tuner to adjust the fan's on setting, but how do I adjust the off setting? Currently I have it set to turn on at 207 ( I don't want it any higher than that, I already feel like that's too high) and the engine cools down to about 199 and the fan still runs.

What does it do on the stock program? With no tuning?

Ron

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The electric fan turns on at 222 deg F stock (so basically never unless the engine is overheating). The only other time it turns on is if the AC is turned on. I'm trying to take advantage of having the electric fan there and having the fan adjustment capabilities of the tuner to allow me to eliminate the clutch fan and gain a few hp. The electric fan moves enough air (others on forums are running their hemi's like this and just adjusting their electric fan settings down with their other tuners). I believe they have on AND off settings though(not sure, but I think they are using different tuners like diablo).

I was just curious as to when the fan knows to turn off. For example, does it turn off after it cools down 5 deg? So if I set it to 205 and it cooled to 199 it would turn off? Like I said though I set it at 207 and it cools to about 199 and stays running, so I'm just trying to figure out how to adjust it so it will turn off when not needed, or if there is a way to adjust the off temperature.

I am not sure that our product is going to allow you to control your electric fans.

I would be suprised if the computer is producing enough power ot trigger the fans.

This is why I asked how they work from a stock program with no SC installed.

We have never tested this. I will ask around here.

Ron

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What do you mean by this:



The electric fan does turn on at the temperature that I set it to with the flashpaq. For example, I first set it to 203, and then watched the engine temp and when it hit 203 the fan kicked on. The fan never shut off though (even though the coolant temp dropped). So then I set it to 207 and then watched the engine temp and when it hit 207 (206 actually...but whatever) the fan kicked on. Again, the fan never shut off though even though the coolant temp dropped. I just need an "off" adjustment for the fan...

The fan table has low, med, and high settings. The data does NOT support this kind of fan {variable speed} settings. The ECT {engine coolant temperature sensor} sends a signal to the PCM when the coolant temp gets {hot}. The fans should only be an ON/OFF- thing.. The data shows 222 deg F. for on and a 6 degree hysteresis off being- 216 Deg f.


Quote from calibrations.

Ron

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Ok thanks for that info. So does that mean that if I changed the fan on temperature there would still be that 6 degrees hysterisis? So if I changed the on temp to 207, it should turn off at 201? Because it is not turning off even at 199.

Also, there was something wrong with the tuner/programming originally and you all did some sort of change and now it is corrected. It only has one setting though (high), and it is 222 deg F (stock). SC told me there is not supposed to be a low/med with my truck. The problem I was having was the fan was running pretty much ALL the time, once the coolant reached like 130 deg or something like that (don't remember exactly as it was a while ago).

I just don't see the point of having fan adjustment settings if I can't use them, you know. That was one of the main reasons I bought superchips vs others was because it said on the website it offered fan control. I've been watching it the past couple days and it turns on properly at the temperature I'm setting it at (207) and then cools to 199, but the fan never shuts off. It won't cool past 199(I assume the stock tstat temp is ~200-205). If there is the 6 degree hysteresis shouldn't it shut off at 201?

Any idea of why the fan doesn't shut off after cooling over 6 deg?

Ron,
I've been paying a lot of attention to this and I've noticed that sometimes the fan will eventually shut off, sometimes it won't. What I think is happening is the temperature read out on the dash maybe doesn't respond immediately, and is a couple degrees off. That's why sometimes it appears to have dropped 6 degrees but continues to run.

I have noticed something else though. I swapped to a 180 tstat and saw that the coolant temp liked to stay between say 188-194 or so unless you sit for a long time in the heat. I changed the fan on temperature to 200 (so that after cooling to about 194 it would shut off). I figured this would minimize fan run time. The fan never kicks on anyway unless I sit for a while in the heat. The problem I noticed is that it seems like no matter what I set the fan temp to (say I set it to 199, 200, 201, 202, etc.) anything in that area, it kicks on at 197 every time. Then it does not shut off because the engine doesn't get down to 190-191 often or easily.

Could you look into this? I think it is just some sort of "glitch" that it isn't saving the setting that I plug in, and it just reverts it to 197 as the on temperature.

I'm having no cooling issues but the fan is running constantly after it initially turns on(the first time I stop and sit in some heat).

I've also found that there is a "high speed" and "low speed" electric fan relay (came across this by accident) and was wondering, is the fan running on "high" or "low" with your tuner settings?

Thank you.

You have made a change from mechanical fan to electric fan.
There are configuration switches that turn on and off the fan SETTING LOGIC at certain temperature points for a variable speed elec. fan.
Since the change to the fan to electric the logic is not in place to run this type of fan; only an on off switch for mechanical fans with 6 degree delta.
You will need a custom fan table set up for him that has the correct temp. ranges in the PCM to work correctly.

Ron

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First, just to be clear, I am using the factory electric fan that came with the truck. I did not swap to an aftermarket electric fan or anything like that. If you did'nt know, the newer 4.7L and 5.7L RAM's come with both electric and clutch fans. With oem tuning, the electric fan only comes on with the AC compressor(to pull air through the condenser) and (got this info from superchips) at a coolant temperature of 222 deg F(I assume this is for overheating protection).

The flashpaq gives me the option to adjust the factory electric fan on temperature, and it works correctly for the most part. It just appears as if there is a glitch where it is not saving the temperature that I plug in to the programmer.

So are you saying that the only fan control with the flashpaq is the on temperature of the mechanical fan? How do you control a mechanical fan electronically? I removed the mechanical fan, I'm not using one, I'm only using the electric fan. Part of the description online with the flashpaq is "electric fan temperature adjustments"(or something like that) and that's part of why I chose this tuner, I'll be bummed if I can't use it. I don't think that's the case though, I think there is just something that has not been communicated clearly between us...

I'm sure this is frustrating for you all as well, I understand the dodges are the toughest to I guess figure out and get tuned, but I've just been very frustrated with what appear to be a few glitches with the product. I've had several issues with this fan control stuff and I also have the TM issue that I mentioned in another thread, it's sort of the same issue, it doesn't save the setting that I choose.

Thanks.

Ok, I am having the calibrator and engineer look at the issue.

Ron

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Any update on this Ron?