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My hydraulics are slow 3 point hydraulics get slow when steering used

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wadingriver

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Hydraulic steering, I assume.
Could be very cold weather and fluid is cold and thick. Could be a clogged filter. could be old hydraulic fluid

Posted on Feb 24, 2016

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Having some sort of a fan issue going on...


my guess is you dont know the radiator fan rules.
its different on each of 3 engines
I have the 3.7L in same car, same year, but is WK yours is XK
the larger passenger compartment with bigger engine.
i have the FSM (SM) factory service manual.
so will post the words out of it , its free to read, posted 300+ time here. and no more posts, im going dark....lol
chapter 7 covers both engine.
5.7:
the 5.7 uses hydraulic fan (not electric motors but uses hydraluic motors, off ps pump)
so is the PS, assist ok and no noises from it.?
first the quotes in cht.7
5.7L ENGINE The 5.7L hydraulic cooling fan is integral
to the fan shroud and is located between the radiator
and the engine.
The power steering pump supplies the hydraulic fluid
and pressure to rotate the cooling fan blade, while the
electrical part of the fan is controlled by the FCM.
The hydraulic fan drive (motor) consists of the three
major following components:
² Steering flow control valve
² Fan control valve
² Two stage G-rotor hydraulic drive
The hydraulic fan and drive is not serviceable. Therefore
any failure of the fan blade, hydraulic fan drive or
fan shroud requires replacement of the fan module
because the fan blade and hydraulic fan drive are
matched and balanced as a system and servicing
either separately would disrupt this balance.
end quote now the rules
HYDRAULIC FAN STRATEGY
The hydraulic radiator cooling fan is controlled by the FCM. A PWM (Pulse With Modulated) signal from the JTEC
controls the fan speed. There are four inputs to the FCM that determine what speed percentage of fan is required
by the vehicle. These inputs are:
² Engine Coolant Temperature
² Transmission Oil Temperature
² A/C System Pressure
By monitoring these three parameters, the FCM can determine if cooling airflow is required. If airflow is required, the
FCM will slowly ramp up (speed up) the fan speed until the parameter(s) are under control. Once the temperature
HYDRAULIC FAN FLUID FLOW CIRCUIT
1 - POWER STEERING RESERVOIR
2 - POWER STEERING PUMP
3 - HYDRAULIC FAN DRIVE ASSEMBLY
4 - FAN BLADE
5 - HYDRAULIC FAN CONTROL SOLENOID
6 - POWER STEERING OIL COOLER
7 - STEERING GEAR
WK ENGINE 7 - 35
or pressure is reduced to within operating parameters the fan will ramp up, ramp down, or hold its speed to maintain
the temperature / pressure requirements.
NOTE: Even if the FCM is not requesting fan on operation the fan blade will usually spin between 100 and
500 RPM when the vehicle is at idle. This is due to a controlled minimum oil flow requirement through the
fan drive motor.

so is it still broke, or just a learning curve
its not simple at all.
in fact all 2005 up GC are complex fan controls
every one,
using tables to decide need, and speed.
on all modern jeeps.

Apr 10, 2016 | 2010 Jeep Commander 5.7

1 Answer

How do i fix my bobcat 825 skidsteers hydraulics ? the right steering leaver works fine but the left does very little to nothing.


basically there are 2 points of control
1---is the control valve for that side which may not be opening the system
2--- the drive motor for that side which may be passing excessive oil and not turning
for the lift action to be slow indicates excessive pressure leakage in that circuit
early units had lever action to the control valves where as later units use electronic controls from joysticks to operate the valves
If this is your type of machine, I would be looking at faulty electronic control mechanisms or corroded wires and contacts

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1 Answer

190xt 3 point won't lift or very slow when hot


Series IV D17 3 point problems - AllisChalmers Forum - Page 1 ...

www.allischalmers.com > ... > Allis Chalmers > Farm Equipment

Apr 15, 2013 - 30 posts - ‎11 authors
I have a few issues with the three point on my D17. ... As soon as I close it, the armsraise back up (not ever touching the spool valve lever). ..... for 50 HP and a hydraulic pump with great volume at slow engine speeds. ... Or the oil is just cold and they won'tgo all the way down normally unless the oil is hot?

Nov 26, 2015 | Cars & Trucks

1 Answer

My steering on my 790 john deere tractiior wont work


ck your hydraulic oil tank level ? if ok ck that your three point hitch moves up/down ? this model uses the tractors hydraulics to steer , testing these things first helps to identify a bad steering valve

Sep 14, 2015 | John Deere Garden

1 Answer

I have 706 Farmall tractor with the D310 engine and TA. When I baught it the transmission fluid was all milky with water and the TA and power steering did'nt work. So I changed the oil and filter and...


change hydraulic filter again and probibly the oil use ahigh quality hydraulic oil like Case-ih hytran fluid this oil has a high moisture retention factor be sure to drain all the cavitys 5 plugs total and let them drain completely before refilling

Apr 04, 2011 | Farmall IH Tractor 706, 756, 806, 856,...

2 Answers

I have powerful hydraulic action with my end


The relief valve may be by-passing, or your pump is cavitating..If you can hear a hissing... its the relief...if you hear whining or chuttering sounds... it is the pump cavitating.It sounds much like a power steering pump. Check your fluid level. **Note There may be water in the system if the oil is really milky looking, also from the cavitation of the pump which causes air in system. And then....Go from there or ask more.

Jan 11, 2010 | Farmall IH Tractor 460, 560, 660, 2606...

2 Answers

03 Windstar makes a whining noise when idling and turning. Sounds like it is coming from steering column. Power steering fluid level is good.


When you checked the power steering fluid level were there any indications of excessive foaming? There are three things that would cause a whining noise from the power steering. 1- low fluid (you checked that so that is not the culprit), 2- loose steering drive belt (you should not be able to press down on the belt more that about one inch between the steering pump pulley and the crankshaft pulley), 3- power steering pump bearing worn out.

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