Temporary Power Steering Failure?
I've owned my 1996 XJS for about 8 months and 5,000 miles.
On three isolated occasions I experienced a total power steering failure when pulling into a parking spot. As I accelerate and turn the wheel all the way to make a 90 degree turn, somewhere midway the turning of the steering wheel, I lose power steering. I usually flip the tranny into reverse and turn the wheel the other way, backup a bit and then complete the maneuver. As soon as I turn the wheel the other way, power steering is restored. Power steering fluid is not low. No visible evidence of leaks. I can't recall if it has always happened when turning the wheel in the same direction. What do you think is going on. |
Has the power steering fluid ever been changed? If not, I'd do that first and see if the problem goes away.
Cheers, Allan |
If the 1996 has the saginaw pump same as the earlier models, there is a pressure valve (in the pump) that regulates pressure to the rack these valves can stick causing a loss of fluid pressure.
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OK, that doesn't sound like it's anything to worry about then...at least until it happens more often, in which case a new pump will be required.
Thanks for filling me in! |
Originally Posted by warrjon
(Post 802829)
If the 1996 has the saginaw pump same as the earlier models, there is a pressure valve (in the pump) that regulates pressure to the rack these valves can stick causing a loss of fluid pressure.
The last of the V12s used the old Saginaw pump, yes. The 4.0 six cylinder cars used a shaft driven pump....but even those had a similar-looking control valve arrangement. I've never delved into the later type....never had reason to....yet. However, a sticking valve does sound plausible. Perhaps a teardown for cleaning and inspection would reveal something? Or, as mentioned, a complete fluid change might be enough to unstick things? That's an easier first step. Cheers DD |
Hey Vee, what ended up happening with this? I'm having similar symptoms with my 1995 4.0 coupe.
Thanks! |
Car was rear ended and totaled.
The replacement car hasn’t done this at all. Sorry for the lack of help. |
Look under the wheel wells for scuffing or tire sidewall ware.
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