Topic: PWR Steering: Violent wheel

[Angela]

Several years ago when I attempted to move the fastback under its own power for the first time I encountered an issue with my power steering system. I am pretty sure I posted a question about the problem at that time. Many of you have heard or experienced the issue, wherein the steering wheel violently turns left & right upon any input from the driver. At that time, I was told the problem was that I had crossed the hoses between the control valve and the power cylinder. I left it at that and moved on to other areas of the project.
Well, now I'm back to correct the problem and I now actually suspect I have the hoses correctly routed. Here's a pic I found from a Mustang Monthly article; my hoses are routed the exact same way, which I believe is correct.
http://www.mustangmonthly.com/howto/mump_0701_ford_mustang_power_steering_system/

Do I have the hoses routed correctly? If yes, what is the problem? I have read that if the hoses are routed properly yet the wheel violently reacts to driver input, then the control valve is defective or was rebuilt incorrectly. It's been so many years that I no longer recall where I sent the vlave for repair.... somewhere in Texas IIRC.

[Bob Gaines]

The advice given previously should still apply . I would still try and swap lines and see it that makes a difference. 

[Angela]

OK Bob, thanks; I can certainly try swapping the hoses. Do you believe the hose routing shown in the picture (above) is incorrect?

[Bob Gaines]

OK Bob, thanks; I can certainly try swapping the hoses. Do you believe the hose routing shown in the picture (above) is incorrect?

It appears it could be . The pitman obscures the line of sight for the lines to the control valve for me to be positive. Blue dot restoration (I think NPD carries them) has made some faithful reproductions of the lines from the control valve to the slave cylinder. The ones you have are functional but far from assemblyline appearing.

[J_Speegle]

From an operating vehicle

[Angela]

Thanks Bob. FYI, the pic I included was from the Mustang Monthly article which I referenced above. The hoses I am using are NOS from Mansfield. They have the correct PNs inked into them.
Jeff, great pic; thanks! My hoses are routed as you show in that picture. I see no reason to swap mine since they are routed exactly as you show from a functioning car. What's next? Do I need to yank the control valve? The entire system was rebuilt... perhaps I need to dig up my records as to where I had the valve and cylinder rebuilt.

[Bob Gaines]

Thanks Bob. FYI, the pic I included was from the Mustang Monthly article which I referenced above. The hoses I am using are NOS from Mansfield. They have the correct PNs inked into them.
Jeff, great pic; thanks! My hoses are routed as you show in that picture. I see no reason to swap mine since they are routed exactly as you show from a functioning car. What's next? Do I need to yank the control valve? The entire system was rebuilt... perhaps I need to dig up my records as to where I had the valve and cylinder rebuilt.

Part numbers inked on hose?? The engineering number is typically metal stamp on one end of the metal crimped end. I think you are being a little short sighted if you don't switch the hose to confirm if that is the source of the problem or not. It may not be the source but the short time it takes to confirm or not will help with a more informed diagnoses. Otherwise it leads to playing more of the guessing game IMO. 

[priceless]

I agree with Bob. I have a 67 with PS and at first I had the hoses reversed. I swapped them and looked at it, it actually still looked surprisingly the same, as if I didn't do a thing.

The switch fixed my problem. 

[Angela]

Bob, you're right. Upon closer inspection with a flashlight, there are numbers stamped into the crimped metal fittings. What I had previously thought were inked PNs are simply ink white striping on the hose sections of the lines... no ink PNs. Sorry for my error.

OK, I can swap the lines. I do see your point. My point, for what it's worth, is that if I have the hoses routed in the same exact manner as shown in Jeff's pic of a known to be correctly routed system, then why swap mine to what would then be an incorrect routing? Still, I see you point... rule out the hoses by swapping them, even if it appears they're correctly routed.