Notices

Steering very tight when hard braking

 
Old 04-04-2019, 10:49 AM
  #1  
Registered Member
Thread Starter
 
ifeliciano's Avatar
 
Join Date: Nov 2018
Location: Dallas
Posts: 53
Received 1 Like on 1 Post
Steering very tight when hard braking

I did a site search through google, but didn't come up with much on my specific issue.

I have a 2004 TL Base that seems to be running fine for its age and mileage. I have done some repairs and basic maintenance in the few months ive had the car, but have not driven it hard to check it out until today.
I have overhauled the Power Steering pump and replaced all the seals in the steering rack. I followed the service manual to a T (mostly). There were a somethings I didn't mess with since I did not have the tools for it.

Anyhow... When driving normal the steering is fine and feels as it should for a TL, but if I brake hard my steering gets really tight. Almost impossible to turn the wheel for several seconds. Several seconds after I let off the brake and return to normal driving, my steering is back.
Do any of you mechanically savvy members have any idea what could be the issue?
ifeliciano is offline  
Old 04-04-2019, 10:55 AM
  #2  
Moderator
 
thoiboi's Avatar
 
Join Date: Apr 2010
Location: SoCal, CA
Posts: 38,193
Received 5,884 Likes on 4,719 Posts
When was the last time you replaced your PS fluid? Is their air in it perhaps?
thoiboi is offline  
Old 04-04-2019, 10:59 AM
  #3  
Registered Member
Thread Starter
 
ifeliciano's Avatar
 
Join Date: Nov 2018
Location: Dallas
Posts: 53
Received 1 Like on 1 Post
Originally Posted by thoiboi View Post
When was the last time you replaced your PS fluid? Is their air in it perhaps?
Thoiboi. A month or so ago. Didn't have any air bubbles after I followed the PS fluid replacement procedure. I'll check for air bubbles shortly though.
ifeliciano is offline  
Old 04-04-2019, 11:30 AM
  #4  
Registered Member
Thread Starter
 
ifeliciano's Avatar
 
Join Date: Nov 2018
Location: Dallas
Posts: 53
Received 1 Like on 1 Post
Well. I steered it left/right a few times, 50 or so, and I did see a few (less than 10) bubbles on the surface on the PS fluid. No leaks that I can discern.
ifeliciano is offline  
Old 04-04-2019, 03:47 PM
  #5  
Registered Member
Thread Starter
 
ifeliciano's Avatar
 
Join Date: Nov 2018
Location: Dallas
Posts: 53
Received 1 Like on 1 Post
Took it out for a 30 min drive cycle, along my drive I had to brake hard and noticed my steering got really stiff once more. Seems like intermittent issue.
Might replace the PS pump. Any thoughts?
ifeliciano is offline  
Old 04-04-2019, 04:31 PM
  #6  
Registered Member
 
Join Date: Feb 2015
Posts: 2,512
Received 613 Likes on 474 Posts
Do you have vaccum leaks? Does the idle dip pretty far down when you apply the brakes?

Does it only happen when you're in gear?

Does the car need to be moving for the steering to become stiff? Or can you do this while sitting still?
BROlando is offline  
Old 04-04-2019, 04:45 PM
  #7  
Registered Member
Thread Starter
 
ifeliciano's Avatar
 
Join Date: Nov 2018
Location: Dallas
Posts: 53
Received 1 Like on 1 Post
Answers in Red

Originally Posted by BROlando View Post
Do you have vaccum leaks? Does the idle dip pretty far down when you apply the brakes? I don't think I have any vacuum leaks. I replaced a lot of the older hoses. They were still good but hard. Where should I look for vacuum leaks?

Does it only happen when you're in gear? Yes, It happens when i'm driving and hard brake.

Does the car need to be moving for the steering to become stiff? Or can you do this while sitting still? Mostly only checked while driving. I did noticed, once after I had parked the car in my driveway, that the steering was stiff for about 10 seconds after starting the car. Have not noticed again.
ifeliciano is offline  
Old 04-05-2019, 11:01 AM
  #8  
Registered Member
 
Join Date: Feb 2015
Posts: 2,512
Received 613 Likes on 474 Posts
The PS starts to taper off as the car goes faster. You need less assist when speed is higher.

Maybe there is an issue with the pressure switch or pressure reading.

Have you had the car inspected?
BROlando is offline  
Old 04-06-2019, 10:00 AM
  #9  
Registered Member
Thread Starter
 
ifeliciano's Avatar
 
Join Date: Nov 2018
Location: Dallas
Posts: 53
Received 1 Like on 1 Post
Originally Posted by BROlando View Post
The PS starts to taper off as the car goes faster. You need less assist when speed is higher.

Maybe there is an issue with the pressure switch or pressure reading.

Have you had the car inspected?

I was thinking there might have been an issue with the p/s pressure switch. I need to look in the service manual for a test procedure. Will reseat connector later and drive around. Its pouring rain right now..
By Inspection do you mean a mechanic or state emissions?
ifeliciano is offline  
Old 04-09-2019, 07:07 PM
  #10  
Registered Member
Thread Starter
 
ifeliciano's Avatar
 
Join Date: Nov 2018
Location: Dallas
Posts: 53
Received 1 Like on 1 Post
I ended up replacing the whole P/S pump on Saturday afternoon. No issues so far. From poking around with the old pump, to me it seems the flow valve is sticking. (hard to slide back/forth in housing).
ifeliciano is offline  
Old 04-11-2019, 12:42 PM
  #11  
Registered Member
 
Join Date: Dec 2014
Location: Pleasanton, CA
Posts: 351
Received 42 Likes on 32 Posts
Originally Posted by ifeliciano View Post
I ended up replacing the whole P/S pump on Saturday afternoon. No issues so far. From poking around with the old pump, to me it seems the flow valve is sticking. (hard to slide back/forth in housing).
if you're so inclined and don't have a core charge, you could follow the rebuild guide and take it apart to see exactly what was going on
jimmyfu is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gcook
3G TL Tires, Wheels & Suspension
11
02-10-2009 07:59 PM
johnny--2k
3G TL Problems & Fixes
8
04-20-2008 02:51 PM
SatinSilverTypS
2G TL Problems & Fixes
9
08-22-2007 05:50 AM
italiaCLs
Second Generation CL Discussion (2000-2003)
16
02-25-2005 05:51 AM
ItalianStallion
Ramblings
33
03-09-2002 08:02 PM


Thread Tools
Search this Thread
Quick Reply: Steering very tight when hard braking


Contact Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.