audioinstaller1983
New LVC Member
does the pump that drives the fan for the radiator power anything else? can i remove it and fabricate a bypass pully?
hydrolic fan
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The pump drives only the hydraulic fan.
tireman
Dedicated LVC Member
Imho
Just get a smaller fan belt. Yes It only drives the fan. A simple system. Switch turns pump on, pump moves fluid thru line, fan turns from moving fluid. Prone to failure. How could they be so reckless to design this.
Just get a smaller fan belt. Yes It only drives the fan. A simple system. Switch turns pump on, pump moves fluid thru line, fan turns from moving fluid. Prone to failure. How could they be so reckless to design this.
Frogman
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Reckless? How do you figure the engineers were reckless?
I guess you could have had an overloaded electrical system....
The hydraulic fan also allows the limp-home mode as the fan will turn as long as the engine is running. The switch only changes speeds; again as long as the crank is turning so is the fan. More recklessness? Think not.
craigh
Dedicated LVC Member
my understanding that a hydraulic fan is used is because an electric fan would have overloaded the alternator. It could also be a fuel mileage issue.
In defense of the hydraulic fan, I have never heard mine running, and yes it does work. It is absolutely very quite.
In defense of the hydraulic fan, I have never heard mine running, and yes it does work. It is absolutely very quite.
rt2barbers
Active LVC Member
LMAO, Joe
failsafe?
what happens when the pump dies? no cooling
what happens when the lines leak?
what happens when the fan dies? no cooling
with an electric fan, you have half as many parts that can fail (and cheaper to fix if it ever does). its also lighter, and robs less power. reckless? maybe not. moronic? i think so. There are people on here with ridiculous sounds systems that draw more amps than a fan would. a simple electric fan and alternator upgrade would have been cheaper for ford, but then they'd lose out on the costly repair opportunity.
at least someone caught on by '03
Ford has standards to meet that people who add ridiculous sound systems don't. A car manufacturer doesn't design a system to allow a repair opportunity. Ford makes no money from a local dealer repair.
If the hydraulic cooling fan is such a bad design, what about power steering?
Quik LS
Dedicated LVC Member
it's not that uncommon of a design, used a lot by Jaguar - which is were some of the common elements for the LS are shared.
It takes hydraulic power to move/ steer the car while stopped so you need it there. If the pump goes, at least you can still turn the wheel, although its hard as hell. You don't need that kind of power or complexity to move air over the engine. With the hydraulic fan, it just stops spinning if the pump breaks, or the fan breaks, or anything else in the system. Plus they can be noisy and it takes up additional space. I just think its better off electric as do most other auto makers. Hell, even a clutch fan is better than the crap in our 00-02's. It just seems like a band aid to fixing the electrical system which would have been much simpler and easier and cheaper to do. Whatever standards ford had to meet, they were somehow able to still meet in 03-06. I'd say it was the 2nd best improvement behind VVT.
Quik LS
Dedicated LVC Member
Well - I don't pretend to be an automotive design engineer - I know it's easy to over-simplify their job from where we are standing.
Again, it's not an uncommon design from 10 years ago. And they did recognize the opportunity to design it out in the Gen2. Complain as we may, it's easy to repair and nothing but three components.
Again, it's not an uncommon design from 10 years ago. And they did recognize the opportunity to design it out in the Gen2. Complain as we may, it's easy to repair and nothing but three components.
pragmatic
Dedicated LVC Member
Hydraulic is also used on Jeeps (powered off the power steering pump), Vipers, and some Lexus and Camry's. I don't really like them but if properly designed they should be fine. Mine has not worked in high since at least late May (I don't drive in traffic) when it began to overheat. I'd like to get just the solenoid control valve but it appears to be coupled with the pump.