Power Steering worse after Flush
08-26-2021, 02:28 PM
#3
Instructor
08-26-2021, 03:40 PM
#4
Le Mans Master
Thread Starter
put return line in a bucket and kept filling reservoir as I turned wheels back and forth. 2 quarts through and it was clear
08-29-2021, 09:58 AM
#5
Le Mans Master
Thread Starter
Changed the pump yesterday and flushed. No improvement at all. At startup, there is no steering as if the car was off. A good tug one way or the other and then it works.
Seemed before the change left turns would sometimes sort of resist in the middle. Now right turns do it.
System has never leaked.
Incresed engine RPM does help
Out of ideas
Seemed before the change left turns would sometimes sort of resist in the middle. Now right turns do it.
System has never leaked.
Incresed engine RPM does help
Out of ideas
08-29-2021, 11:19 AM
#6
Instructor
Changed the pump yesterday and flushed. No improvement at all. At startup, there is no steering as if the car was off. A good tug one way or the other and then it works.
Seemed before the change left turns would sometimes sort of resist in the middle. Now right turns do it.
System has never leaked.
Incresed engine RPM does help
Out of ideas
Seemed before the change left turns would sometimes sort of resist in the middle. Now right turns do it.
System has never leaked.
Incresed engine RPM does help
Out of ideas
08-29-2021, 01:49 PM
#7
Le Mans Master
When you turn steering to lock do you hear pump load engine? If you have a helper does fluid level drop for a moment when wheel is turned?
Flow valve could be stuck. Flow valve is behind large nut on pump that high pressure hose attaches to. The valve does uss a spring, make sure it's reinstalled. Brake or carb clean normally does the trick. Make sure bore in clean of debris.
Other impossibility is spool valve seals a leaking.internally. Spool valve is part of the pinion and in most cases steering gear is replaced or rebuilt.
Flow valve could be stuck. Flow valve is behind large nut on pump that high pressure hose attaches to. The valve does uss a spring, make sure it's reinstalled. Brake or carb clean normally does the trick. Make sure bore in clean of debris.
Other impossibility is spool valve seals a leaking.internally. Spool valve is part of the pinion and in most cases steering gear is replaced or rebuilt.
08-29-2021, 04:10 PM
#8
Racer
Fluid
What brand of fluid are you using? I changed my fluid once on a Monte Carlo with some PS fluid from Sams. The power steering pump didn’t like it at all. I then bought Royal Purple fluid and it was a night and day difference. Kevin
08-29-2021, 07:00 PM
#9
Le Mans Master
Thread Starter
The following users liked this post:
mike1111 (09-01-2021)
08-29-2021, 07:01 PM
#10
Le Mans Master
Thread Starter
When you turn steering to lock do you hear pump load engine? If you have a helper does fluid level drop for a moment when wheel is turned?
Flow valve could be stuck. Flow valve is behind large nut on pump that high pressure hose attaches to. The valve does uss a spring, make sure it's reinstalled. Brake or carb clean normally does the trick. Make sure bore in clean of debris.
Other impossibility is spool valve seals a leaking.internally. Spool valve is part of the pinion and in most cases steering gear is replaced or rebuilt.
Flow valve could be stuck. Flow valve is behind large nut on pump that high pressure hose attaches to. The valve does uss a spring, make sure it's reinstalled. Brake or carb clean normally does the trick. Make sure bore in clean of debris.
Other impossibility is spool valve seals a leaking.internally. Spool valve is part of the pinion and in most cases steering gear is replaced or rebuilt.
08-31-2021, 05:36 PM
#11
Advanced
Rack is probably shot. When through the same thing you describe and didn't believe it when a parts guy told me but decided I wanted a sport rack anyway. Had a devil of a time finding one but finally found one at Denny's Corvette in Florida. Fixed all my problems.
08-31-2021, 05:41 PM
#12
Le Mans Master
Thread Starter
did you install yourself? How nasty?
09-01-2021, 08:43 AM
#13
Instructor
According to the book -101 Projects for your Corvette - there are really only two nuts and one bolt that hold the steering rack in place . But you have a lot of stuff to remove to get to the rack . They go on to say it's best to have a helper and timewise it's about a 6 hour job . From my experiences working on suspensions it's doable but knuckle busting .
09-01-2021, 01:44 PM
#14
Advanced
09-17-2021, 09:06 PM
#15
Le Mans Master
Rack
My 86 had morning sickness, and i changed the rack with a Z06 rack from Autozone.
guaranteed lifetime.
6 years ago, it went bad again.
had to pay for the replacement, got that money back when i returned the core,
so total, 15 years on the Autozone racks.
never leaked, just morning sickness
guaranteed lifetime.
6 years ago, it went bad again.
had to pay for the replacement, got that money back when i returned the core,
so total, 15 years on the Autozone racks.
never leaked, just morning sickness
08-18-2022, 04:43 PM
#16
Pro
Changed the pump yesterday and flushed. No improvement at all. At startup, there is no steering as if the car was off. A good tug one way or the other and then it works.
Seemed before the change left turns would sometimes sort of resist in the middle. Now right turns do it.
System has never leaked.
Incresed engine RPM does help
Out of ideas
Seemed before the change left turns would sometimes sort of resist in the middle. Now right turns do it.
System has never leaked.
Incresed engine RPM does help
Out of ideas
08-18-2022, 07:01 PM
#17
Le Mans Master
Thread Starter