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Old 04-03-2012, 23:09   #1 (permalink)
RBR
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Smile 99 Ford Taurus Wagon Power Steering Question

Does anyone have the Power Steering Pump Flow Rate for a 1999 Ford Taurus LX Wagon with a 3.0L Vulcan engine. The pump is a CII with a code HBC-LT. I have a power steering analyzer however it didn't come with the flow chart inside it. Perhaps it would have the spec in the Shop Manual? Also at what pressure should the pressure relief valve open? Thanks, RBR.
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Old 04-04-2012, 08:36   #2 (permalink)
2002 F150 XLT
 
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Re: 99 Ford Taurus Wagon Power Steering Question

From the shop manual.

Pump Flow and Pressure Test

WARNING:
Do not touch the flowmeter during the test procedure or severe burns and serious injury can occur.

1. CAUTION: Make sure that the connection point will not interfere with any of the engine accessory drive components or drive belts.

Install special tool 014-00207 or equivalent at the high pressure port of the power steering pump. Make sure the power steering analyzer gate valve is fully open.

On some vehicles, the power steering pump high pressure port is inaccessible, and the special tool should then be installed either at the steering gear or at a point in the high pressure line between the power steering pump and the steering gear.

2. Place special tool 023-R0007 or equivalent in the power steering pump reservoir.

3. Check the power steering fluid level. If necessary, add power steering fluid.

Use Motorcraft Mercon® Multi-Purpose (ATF) Transmission Fluid XT-2-QDX meeting Ford specification MERCON or equivalent.

4.CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump will occur.

Start the engine. Place the transmission in N (neutral). Set the parking brake. Raise the power steering fluid temperature to 74-80ºC (165-175ºF) by rotating the steering wheel fully to the left and right several times.

5. Set the engine speed to idle. Record the flow rate and pressure readings.

1 If the flow rate is below the idle flow rate specification, the power steering pump may require repair. Continue with the test procedure.

2 If the pressure reading is above the idle pressure specification, then check the power steering hoses for kinks and restrictions.

6. Partially close the gate valve to obtain 5098 kPa (740 psi). Record the flow rate.

If the flow rate is less than the specified flow rate, then install a new power steering pump.

7. CAUTION: Do not allow the gate valve to remain closed for more than five seconds.

Completely close and partially open the gate valve three times. Record the pressure relief valve actuation pressure reading.

If the pressure does not meet the relief pressure specification, then install a new power steering pump.

8. Set the engine speed to 1,500 rpm. Record the flow rate.

If the flow rate varies more than 3.785 liters/minute (1 gallon/minute) from the initial flow rate reading, then install a new power steering pump.

9. CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump will occur.

Set the engine speed at idle. Turn (or have an assistant turn) the steering wheel to the left and right stops. Record the flow rate and pressure readings at the stops.

1 The pressure reading at both stops should be nearly the same as the maximum pump relief pressure.

2 The flow rate should drop below 1.9 liters/minute (0.5 gallons/minute).

3 If the pressure does not reach the maximum pump relief pressure or the flow rate does not drop below the specified value, excessive internal leakage is occurring. Repair or install a new steering gear as necessary.

10. Turn (or have an assistant turn) the steering wheel slightly in both directions and release quickly while watching the pressure gauge.

1 The pressure reading should move from the normal back pressure reading and snap back as the steering wheel is released.

2 If the pressure returns slowly or sticks, the rotary valve in the steering column is binding. Check the steering column and linkage before repairing the steering gear.
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Old 04-04-2012, 22:17   #3 (permalink)
RBR
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Re: 99 Ford Taurus Wagon Power Steering Question

Thanks Bert. Thats what I was looking for. After taking the readings my findings are that the CII pump is OK which is what I figured. 9 times out of 10 its usually the R&P that's the problem. I do have a shop manual on its way but its not here yet! Thanks again
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Old 04-05-2012, 12:16   #4 (permalink)
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Re: 99 Ford Taurus Wagon Power Steering Question

You're welcome. Keep us posted.
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Old 04-22-2012, 22:51   #5 (permalink)
RBR
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Re: 99 Ford Taurus Wagon Power Steering Question

Flushed the complete p/s system and then installed a new R&P gear. Filled/purged all air from system and all is good with full assist and quiet now!
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Old 04-23-2012, 20:06   #6 (permalink)
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Re: 99 Ford Taurus Wagon Power Steering Question

Thanks for the update. Glad to hear.
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