What would be the cause of the power steering and brakes to go out on a 1992

Cat Breeds What would be the cause of the power steering and brakes to go out on a 1992, Chevy Astro van? Power steering pump is connected to master cylinder of the brakes. Belts not broke and this is the first thing that has went wrong on this van. ...


  #1  
26-02-10, 04:01
  What would be the cause of the power steering and brakes to go out on a 1992
Chevy Astro van? Power steering pump is connected to master cylinder of the brakes.
Belts not broke and this is the first thing that has went wrong on this van.
Van runs fine sothere is no broken belt. And in this one power steering runs the brakes that is how this one was made. No leaks anywhere we have the van up on ramps right now.


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  #2  
05-03-10, 20:23
 
Engine OFF
1. Check the PS fluid level
2. Inspect the belt condition & tension. If Ok reach in & move the PS pulley. First vertically, then horizontally (towards the rad) . There should be only slight horizontal movement & no vertical movement.
3. If all OK, then start the engine. Have someone turn the steering wheel. If there is any squealing or the pulley slows (or stops) then there ia a problem with the belt or tensioner.

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  #3  
27-03-10, 22:46
 
idk, maybe it being 18 years old?
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  #4  
30-03-10, 21:20
 
the brake booster believe it or not sometimes the power steering and brake systems are connected when one goes so will the other.
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  #5  
09-09-10, 09:25
 
An Astro van has HydraBoost. Meaning that the power steering pump is used for both power steering assist AND power brake assist, as compared to a conventional system which uses engine vacuum for brake assist.

Either your power steering pump went south, or you have a leak in a hydraulic line, causing the power steering pump reservoir to be empty. If its empty fill it up, and identify and replace the leaky component.

I doubt you have a serpentine belt problem since the belt drives the water pump and alternator too ... You would know if you lost the belt, it would overheat and the battery would eventually die out.
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  #6  
10-10-10, 07:11
 
As banky says, some vehicles use the hydraulic pressure created by the power steering pump to assist with braking pressure. The astro is such a vehicle. Sounds like you have lost hyraulic pressure. Your van may not have a serpentine belt and the power steering may have it's own belt which may be broken. I would start there, if the belt is ok, the pump may have gone bad or there other issues exist with the hydraulics.

http://www.s10forum.com/forum/f143/hydroboost-204075/
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  #7  
14-11-10, 01:26
lar
 
The master cylinder is a separate entity. The broken belt would be a reason for power steering to go out, but you should be experiencing loss of alternator, no air conditioning, and no alternator if the belt has broken. You haven't said one thing about that.

If you have a loss of brakes you probably have a wheel cylinder that is leaking and or a broken brake line. Stick your head under the car and see if one of the tires is wet under neath.
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