How to diagnose power steering problems


There can be many reasons that you are having steering problems.  The following chart can help you decide where your problem lies.  Many times simply repairing a leaky hose can solve the issue.  Check here


Diagnostic Chart
 Condition
Possible Cause 
Correction 
Hard Steering 
Low tire pressure 
Inflate tires to correct pressure 
Improper front suspension alignment 
Re-align to specifications 
High internal leakage (pump or gear) 
Check pump pressure; replace affected pump parts or replace complete pump 
Low oil level in reservoir 
Add recommended type of P/S oil to proper level 
Pump belt loose or glazed 
Tighten or replace belt 
Lack of lubricant in suspension or ball joints 
Lubricate or replace parts as needed 
Overcenter adjustment too tight 
Readjust to specifications 
Spool valve or flow control valve plugged or sticking 
Clean or replace as required 
Steering gear coupler to column is misaligned 
Align steering column 
Momentary increase in steering wheel effort when turned rapidly 
Fluid level low in reservoir 
Check level; Add recommended type of P/S oil to proper level 
Pump belt slipping 
Tighten or replace belt 
High internal leakage 
Check pump pressure; replace affected pump parts or replace complete pump  
Steering wheel surges or jerks with engine running, especially at slow speeds 
Pump belt loose 
Tighten or replace belt 
Low oil level in reservoir 
Check level; Add recommended type of P/S oil to proper level 
Engine idle too slow 
Raise idle as required 
Air in the system 
Check all P/S hose connections and pump for leaks 
Insufficient pump pressure 
Check pump pressure; replace affected pump parts or replace complete pump  
Flow control valve sticks 
Check valve for dirt or burrs; replace as needed 
Steering linkage hitting obstruction 
Locate obstruction and repair 
Sticky flow control valve 
Inspect for varnish or damage; clean or replace as necessary 
Excessive steering wheel return or loose steering 
Air in the system 
Add P/S fluid to system and bleed the system; check all connections and hoses for leaks 
Excessive overcenter lash 
Adjust to specifications 
Loose steering gear mounting 
Retourque mounting bolts 
Steering linkage is worn or damaged 
Inspect and replace affected parts 
Steering coupler is loose or damaged 
Inspect, tighten or replace as required 
Loose thrust bearing preload adjustment 
Adjust to specifications 
Loose or damaged front wheel bearings 
Inspect, adjust or replace as required 
Vehicle wandering from side to side 
Front end misaligned 
Check and align to specifications 
Worn front end parts or wheel bearings 
Inspect and replace affected parts 
Unbalanced or badly worn steering gear control valve 
Inspect and replace affected parts  
Poor steering wheel return 
Tires underinflated 
Inflate tires to correct pressure  
Steering gear adjustment too tight 
Check adjustment with pitman arm disconnected; readjust if necessary 
Front end misaligned 
Check and align to specifications  
Steering coupler misaligned, hitting obstruction or damaged 
Inspect, adjust or replace affected parts  
Binding or lack of lubrication in steering linkage or ball joints
Inspect, lubricate or replace affected parts
Sticky or plugged steering gear spool valve 
Clean or replace 
Internal leakage in steering gear 
Inspect seals, replace as required or overhaul steering gear 





At Remart Auto Parts we are not mechanic's nor do we validate or warrant the information included in this blog. If in doubt about any information included in this blog, please consult a certified mechanic before attempting any vehicle repair. To view complete information about this disclaimer and the source and origin of content on the remartautoparts blog, click here.

1 comments:

  • The steering systems on our vehicles go through a tremendous amount of stress and all of that stress tends to wear out steering components at a fairly fast rate.This is why it's so important to learn how to diagnose these problems before they become too severe.

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