Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
power steering
05-24-2017, 11:19 AM
Post: #1
power steering
I have a 1995 Ford Escort with a power steering problem. While changing a head gasket this past January, I must have tweeked a PS hose connection (high pressure side) and developed a slight leak, just enough to leave a spot of fluid on the driveway. Occasionally the fluid in the resivour gets foamy. Yesterday I sucked out as much of the old fluid as I could and put a bottle of "Lucas" stop leak and new fluid to the full line. Up until today, the performance of the power steering has been unaffected. This morning I started the car and backed it out of the driveway and the steering is stiff and the fluid is all foamed up. What could be causing this and how do you think I should go about correcting it? Thanks for any direction you can give me.
Find all posts by this user
Quote this message in a reply
05-24-2017, 11:36 AM
Post: #2
RE: power steering
Chances are the hose that got kinked now has a ply separation similar to a bubble in the sidewall of a tire, except it's internal. This may cause a restriction, which will cause the bubbles. Replacing the hoses may fix the problem.

Just a pointer: Using stop leak in that type of system may attack the other seals and gaskets eventually causing them to fail. Think of it as something that causes swelling of the rubber parts, similar to what brake fluid will do in the wrong places. This swelling is what slows the leak so not always wise to use it where you may be trying to save other components. With that idea in mind the stop leak does NOT work on mechanical connections like the fittings... only seals, gaskets, rubber.... and only for a short time until that part fails completely.
Find all posts by this user
Quote this message in a reply
05-31-2017, 11:33 AM (This post was last modified: 05-31-2017 11:35 AM by bigbuck.)
Post: #3
RE: power steering
Thanks for the info. The stop leak has not been in the system too long. Hopefully it will not have caused any problems.

Another thing occurred to me. Would a faulty pressure relief valve cause the bubbles?
Find all posts by this user
Quote this message in a reply
05-31-2017, 10:13 PM (This post was last modified: 05-31-2017 11:06 PM by Rupe.)
Post: #4
RE: power steering
The pressure relief valve is inside the PS pump and pumps are fairly cheap so might as well replace the whole thing while it's out of the car, if you feel that's the problem. If the valve sticks the pump will be straining all the time and the fluid will turn very dark in color. It may even smell burnt.

BTW, this car is over 22 years old and most older vehicles start to develop rusty spots on the steel lines at around 15 years old. It might be wise to degrease everything and look for the exact point of the leak before going further. You may find the issue is a return line (non-pressure) and replacing it with a rubber hose or bending up a piece of steel tubing might solve your problems.
Find all posts by this user
Quote this message in a reply
Post Reply 


Forum Jump:


User(s) browsing this thread: 1 Guest(s)