Need help with Bendix PS diagnosis
Thread Starter
|
Elder User
Joined: Jul 2004
Posts: 920
Likes: 0
From: Westminster, Colorado
Need help with Bendix PS diagnosis
I have a 1967 F-250 4x4....but it has a 1974 DANA 44 front end with the Bendix Power assist system....
Two months ago, I had a PS pump seize up ans replaced it with another unit I had in the truck that I had bought a couple of years earlier, when I thought it was broken before....
It was working great before this seize, but after putting new pump on, it does not work well...or consistently....So, an update.....I am at a loss for what is broken....
After noticing several times that the power worked when turning left, but when I turned right I would get an overflow of fluid from the pump, so I reasoned that perhaps that line to the cylinder is bad or clogged, clearly the pump was trying to work, as the belt would squeal and it would even effect the idle of the engine a bit.
So, replaced that line and did another round of side to side....now, occasionally it works....not sure what makes it work or not work, but some mornings, or later in the day, suddenly, I have Power steering again....great to the left, a little squeaky to the right, but working better than before....
But, after a while, it stops....sometimes comes back, often does not.....
I read one article that suggests replacing all the lines every 5 years, which I am clearly behind on for the other 3 lines.....could this be the issue, or does it sound more like a bad pump or valve.....seems to me the valve must be working for it to work at all...???
So confused....what a great time for my long time shop to decide they no longer want my business.....
Two months ago, I had a PS pump seize up ans replaced it with another unit I had in the truck that I had bought a couple of years earlier, when I thought it was broken before....
It was working great before this seize, but after putting new pump on, it does not work well...or consistently....So, an update.....I am at a loss for what is broken....
After noticing several times that the power worked when turning left, but when I turned right I would get an overflow of fluid from the pump, so I reasoned that perhaps that line to the cylinder is bad or clogged, clearly the pump was trying to work, as the belt would squeal and it would even effect the idle of the engine a bit.
So, replaced that line and did another round of side to side....now, occasionally it works....not sure what makes it work or not work, but some mornings, or later in the day, suddenly, I have Power steering again....great to the left, a little squeaky to the right, but working better than before....
But, after a while, it stops....sometimes comes back, often does not.....
I read one article that suggests replacing all the lines every 5 years, which I am clearly behind on for the other 3 lines.....could this be the issue, or does it sound more like a bad pump or valve.....seems to me the valve must be working for it to work at all...???
So confused....what a great time for my long time shop to decide they no longer want my business.....
Posting Guru
Joined: Aug 2010
Posts: 1,761
Likes: 8
From: Knoxville, TN
Replacing hoses (and flushing the system) when replacing a pump is always a good idea anyway, just to protect the new pump.
Has everything been properly bled, or could there still be air in the system?
Has everything been properly bled, or could there still be air in the system?
Thread Starter
|
Elder User
Joined: Jul 2004
Posts: 920
Likes: 0
From: Westminster, Colorado
I tried to flush and bleed....but I have a feeling I didn't do it right....
Thread
Thread Starter
Forum
Replies
Last Post
wotan
1973 - 1979 F-100 & Larger F-Series Trucks
5
Jun 18, 2013 09:18 AM
jb10725
1983 - 2012 Ranger & B-Series
1
Dec 16, 2012 04:56 PM
hurstcastle
1967 - 1972 F-100 & Larger F-Series Trucks
16
Jan 6, 2008 02:44 PM
gsg1981
1973 - 1979 F-100 & Larger F-Series Trucks
21
Jul 10, 2004 01:52 PM
