Can't find replacement o-ring for 1989 f-150 5.0 psps
What would be an acceptable replacement o-ring for the power steering pressure switch on a 1989 ford f-150 xlt lariat 4x4 5.0 automatic? All the auto parts stores and dealerships i've checked with sell the complete switch, but not just the o-ring by itself.
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TO REPLACE THE POWER STEERING PRESSURE SWITCH.REMOVE SIPHON OUT POWER STEERING FLUID BELOW THE PRESSURE SWITCH.UNSCREW THE OLD PRESSURE SWITCH AND SCREW IN THE NEW POWER STEERING PRESSURE SWITCH.MAKE PRESSURE SWITCH HAS THREAD SEALER ON IT.IF NEW PRESSURE SWITCH THREADS ALREADY HAVE SEALER ON THE THREAD DONT NEED TO USE TEFLON TAPE TO SEAL THE THREADS.BLEED POWER STEERING SYSTEM.
FIRST YOU DRAIN POWER STEERING PUMP USING A SIPHON. PLACE DRAIN PAN UNDER VECHICLE WHERE POWER STEERING PUMP LOCATION WOULD BE.THE DRAIN PAN WILL CATCH FLUID AS YOU REMOVE POWER STEERING LINE.YOU NEED FLARE IN LINE WRENCHES AND A NEW POWER STEERING PRESSURE LINE AND NEW O - RINGS. IF NEW PRESSURE LINE DONT HAVE NEW O- RING THE DEALERSHIP WILL HAVE IT.
I have no experience doing this conversion myself but that code should have nothing to do with the engine itself. The code indicates that you're having a problem with the power steering pressure switch (psps). I suspect that the connector to it got left of or damaged during the engine swap. The psps senses when the steering system is loaded, such as tight parking turns and then tells the computer to increase idle speed so that the engine does not stall. If the wire to the switch is left off or damaged, the code will set. You'll need to inspect the high pressure line coming from the power steering pump. Somewhere between the pump and the steering rack you will see a small oil pressure switch with a couple of wires going to it...or at least it should, the connector might be hanging somewhere near it.
Power Steering Pump - REMOVAL & INSTALLATION
Stratus, Sebring Convertible and Breeze (see Figures 1, 2, 3
Disconnect the negative battery cable from the left strut tower.
The ground cable is equipped with an insulator grommet, which should be
placed on the stud to prevent the negative battery cable from
Siphon as much power steering fluid out of the reservoir as
Raise and safely support the vehicle.
Remove the right front tire and wheel assembly.
Remove the splash shield from the right front wheel well.
Fig. 1: Power steering pressure hose attachment to the
pump-with Variable-Assist steering
Fig. 2: Power steering pressure hose attachment to the
pump-without Variable-Assist steering
Disconnect the power steering pressure hose from the pump.
Remove the hose connection on the power steering pump.
Fig. 3: Typical power steering pump front bracket attachment
Remove the power steering adjusting bolt.
Remove the power steering pump rear attaching bolt.
If so equipped, remove the Anti-lock Brake System (ABS) hydraulic
control unit heat shield.
Remove the wheel speed sensor retainer bracket from the right
Remove the wheel speed sensor sealing grommet from the right inner
Disconnect the speed sensor wiring.
Push the wiring through the hole in the inner fender.
If not equipped with anti-lock brakes, the hole will just have a
Remove the bolt attaching the power steering front bracket to the
mounting bracket. Access to the bolt is gained through the hole for the
speed sensor wiring.
Remove the power steering pump drive belt.
Remove the power steering pump and the front bracket as an
Install the power steering pump and bracket.
Reinstall the bolt at the adjusting slot, but do not tighten.
Reinstall the bolt mounting the power steering pump to the rear
mounting bracket, but do not tighten.
Reinstall the power steering pump top bolt, but do not tighten.
Reconnect the power steering hoses.
Fig. 4: Install a new O-ring gasket on the hose fitting Use a new O-ring when reinstalling the power steering pressure hose.
Reinstall the drive belt.
Adjust the drive belt and tighten the power steering pump bolts to
40 ft. lbs. (54 Nm).
Reinstall the splash shield.
Reinstall the tire and wheel assembly.
Lower the vehicle.
Reconnect the negative battery cable.
Refill the reservoir and bleed the power steering
Sebring Coupe and Avenger
Disconnect the negative battery cable.
Remove (drain, suction pump, etc.) as much power steering fluid as
Disconnect the return fluid line. Remove the reservoir cap and
allow the return line to drain the fluid from the reservoir. If the
fluid is contaminated, disconnect the ignition high tension cable and
crank the engine several times to drain the fluid from the gearbox.
Cover any components located underneath the power steering pump with a
shop towel to protect them from damage due to power steering fluid
spillage. For example, the A/C compressor or alternator, depending on
vehicle and engine, is below the power steering pump, so cover the A/C
compressor or alternator with a shop towel before removing any hoses.
Loosen (but do not remove) the power steering pump mounting bolts
and remove the drive belt.
Remove the pressure switch connector from the side of the pump.
Disconnect the pressure line.
Unbolt and remove the pump from the mounting bracket.
Clean all parts well. Inspect the pump pulley for cracks. Check
the hoses carefully for cracks or signs of weakness.
Install the pump, wrap the belt around the pulley and lightly
tighten the mounting bolts.
Replace the O-rings and connect the pressure line. Connect the
pressure line so the notch in the fitting aligns and contacts the pump's
guide bracket. Tighten the fitting to 13 ft. lbs. (18 Nm).
Connect the return line and secure with the clamp.
Fasten the pressure switch connector.
Adjust the power steering belt for proper tension and tighten the
Use only MOPAR ATF PLUS automatic transmission fluid type 7176, ATF+3
automatic transmission fluid, or equivalent, in the power steering
system of Sebring coupe and Avenger models.
Refill the reservoir and bleed the power steering
Hope this help to solve it (remember comment and rated this). TY for using Fixya.
SOUND LIKE POWER STEERING PRESSURE HOSE LEAKING.COPPER TUBING IS TOO SOFT METAL FOR POWER STEERING AND BRAKES SYSTEM.BUY A PRESSURE HOSE AT ANY AUTO PARTS PLACES LIKE AUTO ZONE OR ADVANCE AUTO PARTS. PRESSURE HOSE SHOULD HAVE O-RING COME WITH IT.
Position the power steering pump on the mounting bosses of engine block and install the bolts at the side of the power steering pump. Tighten to 20-30 Nm (15-22 ft. lbs.).
Connect the power steering reservoir pump hose to the power steering pump and reposition the hose clamp to power steering pump inlet fitting.
Replace power steering pressure hose O-ring.
Install the power steering pressure hose to the power steering pump fitting. Tighten the tube nut with a tube nut wrench rather than with an open-end wrench. Tighten to 34-46 Nm (26-33 ft. lbs.).NOTE: Swivel or end play of the power steering pressure hose end is normal and does not indicate a loose fitting.
Place the power steering pump pulley on the power steering pump shaft and install Power Steering Pump Pulley Replacer T91P-3A733-A. The small diameter threads on the tool should be engaged in the power steering pump shaft. CAUTION: Do not apply in and out pressure on the shaft. Pressure will damage the internal rotating group.
Hold the small hex-head and rotate the tool nut clockwise to install the power steering pump pulley on the shaft. CAUTION: Do not apply in and out pressure on the shaft. Pressure will damage the internal rotating group. NOTE: The power steering pump pulley face must be flush within 0.25 mm (0.010 inch) of the end of the pump shaft.
Remove the Power Steering Pump Pulley Replacer T91P-3A733-A.
Remove the shipping tube nut from power steering pump housing prior to installation.
Connect electrical connector to power steering control valve actuator.
What are we talking about? Preasure side of AC compressor pump?
Power steering pump?
If AC, then possibly from a leaking AC-high preasure switch on the back of the compressor. The leak could be simply the O-ring. You simply unscrew it and install the replacement making sure the O-ring is good and in place. The switch can leak also. This part is hard to find accept at the dealer. It has a 4-wire connector on it.
I had the same problem. You can not replace that o ring. You have to replace the complete hose ***. They redesigned the hose to fix that common problem. To bad the customer has to pay to replace a poorly designed part.