Loss of oil from steering and suspension system

Which control solenoid ? There are a few ,1-2 shift , TCC solenoid ,3-4 shift ,PWM solenoid .
Remove the case side cover. Refer to Case Side Cover Replacement (W/ Gasket) .
Removal Procedure
Tools Required J 28467-360 Engine Support Fixture

1. Disconnect the negative battery cable. Refer to
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
in General Information.

2. Remove the park/neutral position switch. Refer to PNP Switch Replacement
3. Install the J 28467-360
4. Raise the vehicle. Support the vehicle. Refer to Vehicle Lifting and Jacking in General Information.
5. Remove the left front tire and wheel assembly. Refer to Wheel Removal in Suspension.
6. Remove the inner splash shield.
7. Remove the tie rod end from the knuckle assembly. Refer to Strut Assembly in Suspension.
8. Remove the stabilizer shaft link from the lower control arm. Refer to Control Arm in Suspension.
9. Remove the ball joint from the steering knuckle. Refer to Ball Joint in Suspension.
10. Remove the drive axle from the transmission. Refer to Drive Axle in Driveline/Axle.
11. Remove the pinch bolt from the steering gear intermediate shaft. Refer to Intermediate Steering Shaft in Suspension.
Caution: Failure to disconnect the intermediate shaft from the rack and pinion steering gear stub shaft can result in damage to the steering gear or to the intermediate shaft. This damage may cause loss of steering control, which could result in an accident and possible personal injury.

12. Remove the intermediate shaft from the steering gear. Refer to Intermediate Steering Shaft in Suspension.
13. Position a transmission jack under the transmission oil pan. Raise the jack until lit supports the transmission.
14. Remove the three frame-to-body bolts on the left side.
15. Lower the transmission jack and the transmission in order to gain access to the case side cover.
16. Remove the oil cooler pipes at the case. Refer to Automatic Transmission Oil Cooler Pipes Replacement

This is a monumental task , suggest you take your vehicle to AAMCO or some other transmission shop .

Is the belt to the power steering pump OK and if so is it slipping hence loss of steer assistance.

Hyundai recommends the following service items for vehicles at 90000 miles:

• Air Filter Replacement
• Spark Plugs Replacement
• Evaporative Canister Filter Replacement
• Change Oil and Filter
• Cooling System Flush
• Rotate Tires
• Check Brake, Steering and Suspension System
• Check Parking Brake System
• Check All Hoses
• Check All Fluids
• Check Exhaust System
• Check Axle Shaft
• Check Heating AC
• Check Drive Belts
• Check Power Steering System
• Check Steering Gear
• Check Gas Cap
• Check Evaporation Emission System
• Check Emission Control System
• Check PCV Valve

Hyundai shows the following as a list of their recommended 90,000 mile maintenance items:

• Air Filter Replacement
• Spark Plugs Replacement
• Evaporative Canister Filter Replacement
• Change Oil and Filter
• Cooling System Flush
• Rotate Tires
• Check Brake, Steering and Suspension System
• Check Parking Brake System
• Check All Hoses
• Check All Fluids
• Check Exhaust System
• Check Axle Shaft
• Check Heating AC
• Check Drive Belts
• Check Power Steering System
• Check Steering Gear
• Check Gas Cap
• Check Evaporation Emission System
• Check Emission Control System
• Check PCV Valve

These maintenance intervals come from the maintenance interval calculator
at www.autozone.com, using a starting point of 25,800 miles (43000 km), and
assuming 1000 miles (1666 km) driven per month, and "severe driving conditions," which
are actually normal usage characteristics, such as frequent short trips, urban driving, waiting in traffic, driving in hot weather, trips under 16 km in cold weather, etc.

STARTING MILEAGE: 25800 (43,000 Kilometers)
Item
Action
Service History

20000 miles or 32000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate


21000 miles or 33600 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


24000 miles or 38400 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


25000 miles or 40000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate


27000 miles or 43200 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


30000 miles or 48000 kilometers

Battery Check
Air Filter Element Check
Wheel Bearing Lubricate
Steering and Suspension Lubricate
Fuel Filter Replace
Oil Filter, Engine Replace
Engine Oil Replace
Fluid - A/T Replace
Cabin Air Filter Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Cooling System Inspect
Wheel Bearing Inspect
Ball Joint Inspect
Drive/Propeller Shaft Inspect
Exhaust System Inspect
Steering and Suspension Inspect
Heat Shield, Exhaust Inspect
Tires Rotate


33000 miles or 52800 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


35000 miles or 56000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate


36000 miles or 57600 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


39000 miles or 62400 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


40000 miles or 64000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate



42000 miles or 67200 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


45000 miles or 72000 kilometers

Battery Check
Steering and Suspension Lubricate
Fuel Filter Replace
Oil Filter, Engine Replace
Engine Oil Replace
Cabin Air Filter Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Cooling System Inspect
Wheel Bearing Inspect
Ball Joint Inspect
Drive/Propeller Shaft Inspect
Steering and Suspension Inspect
Tires Rotate


48000 miles or 76800 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


50000 miles or 80000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate


51000 miles or 81600 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


54000 miles or 86400 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


55000 miles or 88000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate


57000 miles or 91200 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


60000 miles or 96000 kilometers

Battery Check
Air Filter Element Check
Wheel Bearing Lubricate
Steering and Suspension Lubricate
Fuel Filter Replace
Spark Plug Replace
Fluid Filter - A/T Replace
Oil Filter, Engine Replace
Engine Oil Replace
Fluid - A/T Replace
Cabin Air Filter Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Cooling System Inspect
Wheel Bearing Inspect
Ball Joint Inspect
Drive/Propeller Shaft Inspect
Exhaust System Inspect
Steering and Suspension Inspect
Heat Shield, Exhaust Inspect
Tires Rotate


63000 miles or 100800 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


65000 miles or 104000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate


66000 miles or 105600 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


69000 miles or 110400 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


70000 miles or 112000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate


72000 miles or 115200 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


75000 miles or 120000 kilometers

Battery Check
Air Filter Element Check
Steering and Suspension Lubricate
Fuel Filter Replace
Oil Filter, Engine Replace
Engine Oil Replace
Cabin Air Filter Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Cooling System Inspect
Wheel Bearing Inspect
Ball Joint Inspect
Drive/Propeller Shaft Inspect
Steering and Suspension Inspect
Tires Rotate


78000 miles or 124800 kilometers

Steering and Suspension Lubricate
Oil Filter, Engine Replace
Engine Oil Replace


80000 miles or 128000 kilometers

Battery Check
Oil Filter, Engine Replace
Engine Oil Replace
Vehicle Inspect
Brakes and Traction Control Inspect
Tires Rotate



And you can continue the pattern from there...

TRANSMISSION FLUID AND TRANSFER CASE FLUIDS ARE SUPPOSED TO BE CHANGED EVERY 60,000 MILES. ENGINE OIL AND FILTER SHOULD BE CHANGED EVERY 3,000 MILES, THESE ARE AUTOMOTIVE INDUSTRY STANDARDS I HAVE WORKED WITH FOR 35 YEARS

Change front/rear axle oil
Change transfer case oil
Air filter
Engine coolant
Rotate tires
Fluid level on battery/radiator/brakes
Change oil and filter
Inspect for fluid leaks
Inspect coolant and heater hoses
Check exhaust system
Check drive belts/tires/wheels/brake lines
Check steering operation/disc brakes/brake pedal play
Check parking brake
Check and lube accelerator linkage
Check suspension/steering/power steering fluid
Lube body and chassis
Check TOD system fluid
Check cruise control linkage and hoses
Check starter safety switch
Lube key lock cylinder

I believe you can find some guidelines in the following free download, good luck!:)

Contains:

Air Conditioner
Brakes, Wheels & Tyres
Cam belt
Central Locking Stuff & Alarms
Cooling System
Cylinder Head
Electrical System & I.C.E
Engine
Exterior Lighting
Fuel & Emissions System
Suspension & Steering
Transmission Systems

Also contains:

Estima Guide
Estima Owners Handbook

Download (~50MB): http://www.mediafire.com/?yx9wiypm6t2

48,000 miles or 48 months
Maintenance Service Schedule 2007 dodge
Change engine oil and engine oil filter
Rotate tires
Lubricate drivetrain / steering / suspension
grease fittings (if equipped)-except Powerwagon
Lubricate front drive shaft fitting
(2500 / 3500, 4X4 & Powewagon)
Lubricate tie rod end links - Powerwagon
Check automatic transmission fluid level
Check manual transmission fluid level
Check the coolant level, hoses and clamps
Inspect exhaust system
Inspect brake hoses and brake linings
Inspect the CV joints/U-joints (if equipped) and
front suspension components
Check spare tire for proper pressure & correct
stowage
Lubricate outer tie rod ends 2500/3500 4X4

51,000 miles or 51 months
Maintenance Service Schedule
Change engine oil and engine oil filter
Lubricate drivetrain / steering / suspension
grease fittings (if equipped)-except Powerwagon
Lubricate front drive shaft fitting
(2500/3500, 4X4 & Powerwagon)
Lubricate tie rod end links - Powerwagon
Check automatic transmission fluid level
Check manual transmission fluid level
Check the coolant level, hoses and clamps
Inspect exhaust system
Inspect brake hoses
Inspect the CV joints/U-joints (if equipped) and
front suspension components

What exactly did you need to know about the steering/suspension system?