Radiator Fans Always On

[stripSHO]

I kind of agree with you strip.....

But that said, at what point does a vendor decline tuning support?

I would think any (& all) vendors wouldn't necessarily be obligated to remedy any issues to owners that happen to purchase the vehicle 2nd hand, and with their tune on it.

Regardless of how simple the fix may be (which in this case, I agree should/would be a relatively easy fix).

Sent from my SM-N950U using Tapatalk

As a contractor I can definitely relate to that point of view. But when my company makes a mistake we own it, regardless of how long it takes to surface, and regardless of the expense. The fact is that the fan enable point is lower than the thermostat, which is just plain wrong for a multitude of reasons.

Jman you might be able to go down to a 160° thermostat and get your heat back at idle, but in Ford's and my opinion there should be 20° difference between the thermostat and fan settings to keep the fans from being stuck on. So best bet would be to get a new tune file. I've been procrastinating ordering SCT's software. Once I have it I'd be willing to try to help you out but I'm sure I'll have to jump through some hacking hoops to get your tuner's file opened.

 

[SM105K]

As a contractor I agree as well if it was something I messed up. However, if you are the second owner of the car, you are not the person that ordered the tune. From limited knowledge I have in the tuning world, a tuner would have actually go in and do some changes to the fans and temp thresholds. They just didn't do it on their own. So what if the previous owner requested the fans on all the time for that particular tune? Should the tuner now go in a "fix" the tune, because a new owner thinks it is wrong (which it could or could not be) for free? I personally would go back and review it to see if it was screw up. If it was a mistake, I would most likely make an exception.

If I was a tuner, I would charge for any revisions if you have not done business with me for that particular set of tunes. There are too many variables between swaps in ownership. For all I would know is, you bought the software and screwed something up, and now you are tasking me to fix it for free?

 

[SHOdded]

what tstat is currently in the vehicle?

 

[jman1200]

As a contractor I agree as well if it was something I messed up. However, if you are the second owner of the car, you are not the person that ordered the tune. From limited knowledge I have in the tuning world, a tuner would have actually go in and do some changes to the fans and temp thresholds. They just didn't do it on their own. So what if the previous owner requested the fans on all the time for that particular tune? Should the tuner now go in a "fix" the tune, because a new owner thinks it is wrong (which it could or could not be) for free? I personally would go back and review it to see if it was screw up. If it was a mistake, I would most likely make an exception.

If I was a tuner, I would charge for any revisions if you have not done business with me for that particular set of tunes. There are too many variables between swaps in ownership. For all I would know is, you bought the software and screwed something up, and now you are tasking me to fix it for free?

I completely agree and for the record, I never intended to get this fixed for free... but also not looking to pay the full price of a new tune, now that I've confirmed it is the tune.

 

[jman1200]

what tstat is currently in the vehicle?

I believe 170.

 

[SHOdded]

Thus the fans coming on early makes sense. Running 87 in an ecoboost needs all the cooling it can get.

 

[SM105K]

Thus the fans coming on early makes sense. Running 87 in an ecoboost needs all the cooling it can get.

I was thinking that as well. Hence why it is a dedicated 87 octane tune.

 

[jman1200]

Thus the fans coming on early makes sense. Running 87 in an ecoboost needs all the cooling it can get.

Why do you say that? Manual recommends a minimum of 87, 91 for added performance so I want to believe Ford took that into consideration when setting the stock ON temp for the fans, which is around 212F.
I checked and with the 87 tune and fans came ON at 169F.

The PO told me he had that tune to save a bit on fuel from time to time. My SHO is my daily driver so with Winter tires on and ice and snow on the road, it doesn't make sense to me to have the high octane tune loaded during this season, and it allows me to run without having to swap the MAF. Only downside so far is the low cabin temp when idling for extended periods of time.

 

[802SHO]

If you have the tuning device....seems like maybe you don't. If you did then custom tuning by a vendor of your choice should be roughly $150 across the board. That's less than one trip to the Grocery Store. No SHO owner should have to resort back to stock...what fun is that?

Id just buy it and enjoy new tunes...and less fan. You know youre going to do it...just do it now. If you wait...you'll definitely regret it...everyone does.

Shoot that tuner another email at least. No shame in asking again. As a customer if I need something I ask for it....repeatedly if necessary.

 

[jman1200]

If you have the tuning device....seems like maybe you don't.

Not sure if you read the whole thread but I've said that I switch from 87 to 93 tunes and have gone back to stock, so I do own a device (SXT4).

If you did then custom tuning by a vendor of your choice should be roughly $150 across the board. That's less than one trip to the Grocery Store. No SHO owner should have to resort back to stock...what fun is that?

As said, I will not spend $150 on a new low octane (Winter only in my case) tune. I do plan to buy a more aggressive track-only tune this Summer. Spend the money on fun stuff only.

Shoot that tuner another email at least. No shame in asking again. As a customer if I need something I ask for it....repeatedly if necessary.

Yeah, I might shoot him another email, I just didn't like how he brushed me off last time.
Appreciate your reply.

 

[SM105K]

Why do you say that? Manual recommends a minimum of 87, 91 for added performance so I want to believe Ford took that into consideration when setting the stock ON temp for the fans, which is around 212F.
I checked and with the 87 tune and fans came ON at 169F.

The PO told me he had that tune to save a bit on fuel from time to time. My SHO is my daily driver so with Winter tires on and ice and snow on the road, it doesn't make sense to me to have the high octane tune loaded during this season, and it allows me to run without having to swap the MAF. Only downside so far is the low cabin temp when idling for extended periods of time.

Jman you answered your own question my friend. The PO specifically requested a low octane tune. Torrie knowing that, wrote the tune to keep the engine cooler (using the t stat and by manipulating the fan temp start) to combat LSPI and detonation. Personally I am not a fan of that, however to each his own. That being said, it probably was written for longer road trips, or sustained drives, ect. By trying to save a couple of dollars a fill up, you are now dealing with the effects of this custom tune.

I wonder, if you put the high octane tune in it and put good fuel in it, and just drove it normal, I bet it would run better and get better mileage since you are limited on how much throttle you can use. You would get your heat back.

 

[802SHO]

Imho you wouldn't be wasting your money, if you buy a tune, revise it to optimal winter driving. Simply revise it again for the summer. And why 87 again?

 

[jman1200]

Jman you answered your own question my friend. The PO specifically requested a low octane tune. Torrie knowing that, wrote the tune to keep the engine cooler (using the t stat and by manipulating the fan temp start) to combat LSPI and detonation. Personally I am not a fan of that, however to each his own. That being said, it probably was written for longer road trips, or sustained drives, ect. By trying to save a couple of dollars a fill up, you are now dealing with the effects of this custom tune.

I wonder, if you put the high octane tune in it and put good fuel in it, and just drove it normal, I bet it would run better and get better mileage since you are limited on how much throttle you can use. You would get your heat back.

That could be true, we do not know what the PO asked the tuner to do. Most likely it worked for him.

I have done extensive tests and I get about the same mileage with the 87 and 93 tunes. 93 oct fuel is not that common around here, only one or two pumps that I know of have it where I live. So I get 94, which is more common but it costs about $1.4/liter ($5.3/gallon), much much more than 87. I save at least $350 each Winter by using 87 instead of 94.
Would you spend the extra money on fuel knowing 95% of the days road conditions won't be safe to floor it and knowing you will be killing your Winter tires each time you do it? I rather not.

 

[SM105K]

That could be true, we do not know what the PO asked the tuner to do. Most likely it worked for him.

I have done extensive tests and I get about the same mileage with the 87 and 93 tunes. 93 oct fuel is not that common around here, only one or two pumps that I know of have it where I live. So I get 94, which is more common but it costs about $1.4/liter ($5.3/gallon), much much more than 87. I save at least $350 each Winter by using 87 instead of 94.
Would you spend the extra money on fuel knowing 95% of the days road conditions won't be safe to floor it and knowing you will be killing your Winter tires each time you do it? I rather not.

So since you are limited with road conditions, throw the 2 bar back in and put the stock tune and run 87. That would probably be your best bet correct? When summer comes, put the higher octane tune and 3 bar back in and let her eat.

I personally would not be DD'ing my car in your conditions. I would have a winter beater that got really good mileage that I literally did not give a RIP about.

 

[802SHO]

That could be true, we do not know what the PO asked the tuner to do. Most likely it worked for him.

I have done extensive tests and I get about the same mileage with the 87 and 93 tunes. 93 oct fuel is not that common around here, only one or two pumps that I know of have it where I live. So I get 94, which is more common but it costs about $1.4/liter ($5.3/gallon), much much more than 87. I save at least $350 each Winter by using 87 instead of 94.
Would you spend the extra money on fuel knowing 95% of the days road conditions won't be safe to floor it and knowing you will be killing your Winter tires each time you do it? I rather not.

I would, honestly there's no question. I give my SHO the best fuel at all times. In my truck I do 87 but I don't care about performance in my work truck.

 

[jman1200]

I already have three cars and a camping trailer, no room for more. Plus car insurance in Ontario is very expensive and then multiply it by 2x-3x if you have young drivers (my 16-19 year old kids) in the policy. Having a recreational-weekend only vehicle in this scenario becomes almost a luxury and I prefer to spend that money on craft beer and travelling with the family.

 

[SM105K]

I already have three cars and a camping trailer, no room for more. Plus car insurance in Ontario is very expensive and then multiply it by 2x-3x if you have young drivers (my 16-19 year old kids) in the policy. Having a recreational-weekend only vehicle in this scenario becomes almost a luxury and I prefer to spend that money on craft beer and travelling with the family.

I get it.

 

[SHOdded]

Are you using the SCT 87 and 93 tunes, or did the tuner come with Torrie's tunes loaded?

What does the OAR settle at after a refueling? Stock/tuned.

Forced induction engines run hotter by nature, so keeping them running cool is important. Yes, Ford took this into account while designing the engine, but since the quality of 87 can vary greatly, you are possibly skimming the bottom without realizing it. Stock tunes run rich to protect the engine, tuners lean it out to get mpg or power as requested. Guess what leaning also does. Yup, makes the engine run hotter. Now you see why you want the extra cooling if tuned with 87, esp economy tuning.

 

[jman1200]

Both are custom tunes.
All you say is accurate but regardless, fans set to turn on at 169 F, is way too low... IMO.

Let put this to rest. Thanks to all for your contributions.