Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD1992F 350 2WD PICKUP V8-7.3L DSLREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSFF - POWER STEERING PRESSURE SWITCH (PSPS)FF - TESTING NOTES
1992 Ford F 350 2WD Pickup V8-7.3L DSL
FF - Testing Notes
1992 Ford F 350 2WD Pickup V8-7.3L DSLSECTION FF - Testing Notes
NOTE: You should enter this Pinpoint Test only when you have been directed here from Quick Test.
REMEMBER
To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault.
- Idle speed/throttle stop adjustment
- Binding throttle shaft/linkage or speed control linkage
- Power steering hydraulic system
This Pinpoint Test is intended to diagnose only the following:
- Power steering pressure switch
- Harness circuits: PSPS, and SIG RTN
- Processor assembly
DESCRIPTION
The Power Steering Pressure Switch (PSPS) is a normally closed switch that opens as pressure increases. The processor uses the signal from the PSPS to adjust idle speed to compensate for the additional load on the engine.
REMEMBER
To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault.
- Idle speed/throttle stop adjustment
- Binding throttle shaft/linkage or speed control linkage
- Power steering hydraulic system
This Pinpoint Test is intended to diagnose only the following:
- Power steering pressure switch
- Harness circuits: PSPS, and SIG RTN
- Processor assembly
DESCRIPTION
The Power Steering Pressure Switch (PSPS) is a normally closed switch that opens as pressure increases. The processor uses the signal from the PSPS to adjust idle speed to compensate for the additional load on the engine.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.