Power steering causing stalling

[Lowmiler]

My truck is a 92 SCSB with 5.7

After driving the around for awhile, parking, shutting the truck off, coming back to it later, starting it and backing out of the parking spot, it tends to stall when I start to turn the steering wheel.

Sitting still with the engine running and in drive, when I start to turn the steering wheel the rpm's and volts drop slightly.

Is the power steering causing this?

Recent maintenance is:

New battery
New alternator
New plugs, wires, cap, rotor
New ICM
New coil
Other than the battery, all parts are AC Delco

 

[GarrettGmc]

Is it only at low speed?

 

[Lowmiler]

Is it only at low speed?

Yes.

 

[GarrettGmc]

Just guessing here but check the fluid to see if your low or check the lines you may have restriction. I kno I've had this happen before and I just replaced the pump an lines

 

[Lowmiler]

Just guessing here but check the fluid to see if your low or check the lines you may have restriction. I kno I've had this happen before and I just replaced the pump an lines

Thank you for the suggestion. I replaced the fluid and it still has the problem

 

[DerekTheGreat]

Isn't there a switch that is supposed to sense the load, which then signals to the computer to kick the RPM up to compensate?

 

[east302]

Isn't there a switch that is supposed to sense the load, which then signals to the computer to kick the RPM up to compensate?

I know some Fords had a (pressure?) switch on one of the pump lines that would do this, but I'm not sure if GM did or not. Would the vehicle speed sensor have any input into it?

Could be a flaky throttle position sensor. When you're turning, you tend to let off the gas.


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[retorq]

Isn't there a switch that is supposed to sense the load, which then signals to the computer to kick the RPM up to compensate?

I believe the Vortecs had these, this is a 92 TBI though...