Power Steering causing RPM drop
10-18-2009, 01:42 AM
#1
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Power Steering causing RPM drop
Hey,
I have been looking at the forums here for a couple months and now that I just bought my own f150, I figured it was time to sign up, and especially considering I had a question.
My old ford ranger never had this problem, although Im not sure if it translates. Essentially, when stopped and idling, if I turn the wheel I can notice a 200 hundred or so drop in RPMs while the power steering pump is active, when I let go of the wheel it increases in RPMs to what it was before.
Is this normal for a full size pickup because of weight and such? Or should I be looking into another power steering pump?
Vehicle in question is a 1994 F150 4X4 5SPD 5.0L EFI
I have been looking at the forums here for a couple months and now that I just bought my own f150, I figured it was time to sign up, and especially considering I had a question.
My old ford ranger never had this problem, although Im not sure if it translates. Essentially, when stopped and idling, if I turn the wheel I can notice a 200 hundred or so drop in RPMs while the power steering pump is active, when I let go of the wheel it increases in RPMs to what it was before.
Is this normal for a full size pickup because of weight and such? Or should I be looking into another power steering pump?
Vehicle in question is a 1994 F150 4X4 5SPD 5.0L EFI
10-18-2009, 08:55 AM
#2
Senior Member
Welcome to the site!
Not much experience with this problem, but noticed that one of the components of the KOER (key on - engine running) diagnostic test is to quickly turn the steering wheel to test for the power steering pressure switch. http://www.fordfuelinjection.com/?p=94
Perhaps run this test to validate that the switch is functioning. I don't experience this RPM drop with the power steering, so suggest your experience is not normal.
Good luck, and keep us posted!
Not much experience with this problem, but noticed that one of the components of the KOER (key on - engine running) diagnostic test is to quickly turn the steering wheel to test for the power steering pressure switch. http://www.fordfuelinjection.com/?p=94
Perhaps run this test to validate that the switch is functioning. I don't experience this RPM drop with the power steering, so suggest your experience is not normal.
Good luck, and keep us posted!