Power steering pump almost causes engine to stall - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Power steering pump almost causes engine to stall

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineThe Solution to Radius Arm Bind - Meet Lock-N-LoadFS: Jeep Fog Light LED Bulbs! Several Brightness Options!

Reply
Unread 01-02-2010, 09:46 PM   #1
InEmberClad
Registered User
1989 YJ Wrangler 
 
Join Date: Jul 2009
Location: Tucson
Posts: 270
Power steering pump almost causes engine to stall

So I just installed a new power steering pump and fired her up to test it out, and when the car is at idle if I turn the wheel it causes the rpms to drop considerably to the point where it almost stalls out. Spark plugs are all firing. Could this be a timing issue? dead cylinder? CPS? If it sounds like I may just need to adjust the timing, does anybody know if there is a write up for this with pictures or something? I've read a million posts about adjusting timing but I don't understand it past placing the engine at TDC.
Help please!

InEmberClad is offline   Reply With Quote Quick reply to this message
Unread 01-02-2010, 10:25 PM   #2
Straycur
Registered User
1995 YJ Wrangler 
 
Join Date: Jan 2009
Location: AK
Posts: 93
Alright, let's start at point A. Did you bleed your new power steering pump after you put it on? It takes a lot of power when its dry. If you didn't have any ignition problems before, you need to look at the recent change for the first issue.
Straycur is offline   Reply With Quote Quick reply to this message
Unread 01-02-2010, 10:31 PM   #3
MJMPC
Registered User
1991 YJ Wrangler 
 
Join Date: Nov 2008
Location: Elizabethtown, Ky.
Posts: 3,070
What size tires do you have on it ?
__________________
MIKE

http://www.dav.org/

MJM Powder Coating
Elizabethtown Ky.

http://www.cityprofile.com/
MJMPC is offline   Reply With Quote Quick reply to this message
Unread 01-02-2010, 10:55 PM   #4
InEmberClad
Registered User
1989 YJ Wrangler 
 
Join Date: Jul 2009
Location: Tucson
Posts: 270
Quote:
Originally Posted by Straycur View Post
Alright, let's start at point A. Did you bleed your new power steering pump after you put it on? It takes a lot of power when its dry. If you didn't have any ignition problems before, you need to look at the recent change for the first issue.
I filled it up with ps fluid, but I didn't bleed the line, I'm new at this didn't know I'd need to. Where is the bleed screw?

I did Just discover that one of the spark plugs is a bit fouled up but I had test lights on there and they were all lighting up when the engine was running.
Quote:
Originally Posted by MJMPC View Post
What size tires do you have on it ?
Its got 31s on there.
InEmberClad is offline   Reply With Quote Quick reply to this message
Unread 01-02-2010, 11:13 PM   #5
Straycur
Registered User
1995 YJ Wrangler 
 
Join Date: Jan 2009
Location: AK
Posts: 93
Here is one way to "get 'er done"
Bleeding a Power Steering System | eHow.com
you didn't say if you had any issues before the PS pump?
Straycur is offline   Reply With Quote Quick reply to this message
Unread 01-03-2010, 12:28 PM   #6
InEmberClad
Registered User
1989 YJ Wrangler 
 
Join Date: Jul 2009
Location: Tucson
Posts: 270
Quote:
Originally Posted by Straycur View Post
you didn't say if you had any issues before the PS pump?
Bled the system, problem persists. The thing is I've never actually driven the jeep, its been getting pieced together for the last 6 months in my back yard. I finally got it to stop coughing and smoking and to idle properly, thought I was almost ready to get it on the road. My neighbor insists that it must be a timing thing but I have no idea how to check/adjust the timing.
InEmberClad is offline   Reply With Quote Quick reply to this message
Unread 01-03-2010, 01:12 PM   #7
ritjobbie
Registered User
1995 YJ Wrangler 
 
Join Date: Jul 2007
Location: Rochester, NY
Posts: 1,283
On the 2.5L there is a pressure switch that revs the engine if you crank the wheel at idle. When you start to turn the wheel, you should see the tach climb just a touch. The straight six doesn't have this because it has more nuts at idle.

Then again, this might be something only on newer YJs. Look for a tumor on the PS pressure line right next to the pump. It'll have some wires going to it.
__________________
1995 YJ Rio Grande, 2.5L Low Output Engine
My Jeep Worklog
ritjobbie is offline   Reply With Quote Quick reply to this message
Unread 01-03-2010, 01:48 PM   #8
5.7YJ
Senior Member
 
5.7YJ's Avatar
1987 YJ Wrangler 
 
Join Date: Aug 2006
Location: Rockledge, Florida
Posts: 900
^^^That was my first thought.
5.7YJ is offline   Reply With Quote Quick reply to this message
Unread 01-03-2010, 03:19 PM   #9
InEmberClad
Registered User
1989 YJ Wrangler 
 
Join Date: Jul 2009
Location: Tucson
Posts: 270
I replaced the ps pressure switch with the pump, its brand new
InEmberClad is offline   Reply With Quote Quick reply to this message
Unread 01-03-2010, 04:43 PM   #10
ritjobbie
Registered User
1995 YJ Wrangler 
 
Join Date: Jul 2007
Location: Rochester, NY
Posts: 1,283
Quote:
Originally Posted by InEmberClad View Post
I replaced the ps pressure switch with the pump, its brand new
But does it work? Bad wiring up the food chain might be causing your problems. Got a multimeter?
__________________
1995 YJ Rio Grande, 2.5L Low Output Engine
My Jeep Worklog
ritjobbie is offline   Reply With Quote Quick reply to this message
Unread 01-03-2010, 05:03 PM   #11
bharris68
Senior Member
1989 YJ Wrangler 
 
Join Date: Jun 2006
Location: Issaquah, Washington
Posts: 763
x2 on the switch problem: You need to make sure that you use "Sensor Safe" sealant when you screw that sensor into the Power Steering pressure hose. If you used teflon tape, or any other selalant than there is no contact and thus, the pressure switch is not sending a signal to the computer to up the revs.

BTW - where did you get your sensor? I'm in need of one...
bharris68 is offline   Reply With Quote Quick reply to this message
Unread 01-03-2010, 05:40 PM   #12
InEmberClad
Registered User
1989 YJ Wrangler 
 
Join Date: Jul 2009
Location: Tucson
Posts: 270
Quote:
Originally Posted by bharris68 View Post
x2 on the switch problem: You need to make sure that you use "Sensor Safe" sealant when you screw that sensor into the Power Steering pressure hose. If you used teflon tape, or any other selalant than there is no contact and thus, the pressure switch is not sending a signal to the computer to up the revs.

BTW - where did you get your sensor? I'm in need of one...
Good to know I'll pick some of that up and let you guys know if it changes anything. I got the switch at here: Oil Pressure Switch*53000970 by the Jeep Specialists | Morris 4x4 Center
InEmberClad is offline   Reply With Quote Quick reply to this message
Unread 01-15-2010, 03:41 PM   #13
InEmberClad
Registered User
1989 YJ Wrangler 
 
Join Date: Jul 2009
Location: Tucson
Posts: 270
Ok, so I properly installed the pressure switch, and replaced the pressure hose since I discovered a kink in the metal part down by the gear box. The problem improved but did not go away entirely. I messed around with a multimeter and a test light for awhile and did not find any problems with the wiring to the pressure switch. Any other possibilities? Gear box might be messed up? Any other reason the engine might not be able to handle the p/s pump?
InEmberClad is offline   Reply With Quote Quick reply to this message
Unread 01-16-2010, 06:55 PM   #14
InEmberClad
Registered User
1989 YJ Wrangler 
 
Join Date: Jul 2009
Location: Tucson
Posts: 270
Sorry not trying to bump, but I just had a thought while looking at a post on the cherokee forum. Is it possible that the pully just isn't spinning freely? and would I need to take the pump apart to lubricate it? It's a brand new pump but I never greased it or anything before installing it.
InEmberClad is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.