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Chris Wagor Posted on Jun 11, 2017

Where is the power steering pressure switch on a 2002 envoy

The power steering pump works great when the engine runs above 2000 rpm. There has never been any evidence of cavitation or sounds coming from the pump. the resevoir is full and I have changed the hydraulic fluid in the system. Also the engine will stall at times and will run like its under a heavy load that will make the low oil pressure warnings appear. Any help or guidance

5 Related Answers

Anonymous

  • 4 Answers
  • Posted on Jul 06, 2008

SOURCE: L Reg Vitara engine knock

if anything id say it was the bearing

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Anonymous

  • 22 Answers
  • Posted on Dec 11, 2008

SOURCE: Low power steering fluid

if the fluid is low it will cause the noise if it is low there is a leak and could have got air in system and cause noise and possibley cause damage to pump and gear box

roedmondson

Romel Edmondson

  • 68 Answers
  • Posted on Jan 23, 2009

SOURCE: Where is the oil pressure sending unit on 2004 Dodge stratus

Most likely the oil pressure switch may be damaged. This is a simple procedure. Change and observe the results

honeymokey

honeymokey

  • 3113 Answers
  • Posted on Apr 25, 2009

SOURCE: 2002 Jetta 1.8T random oil pressure warnings

Replace oil pump and use the bigger filter that Vw tells you to. These 1.8's have some oiling problems due to the amount of oil they hold and they want you to use synthetic oil in them.

Anonymous

  • 82 Answers
  • Posted on May 01, 2009

SOURCE: 1995 gmc jimmy... heavy clunking and low kpa oil pressure

It sounds like you have fried your main bearings and possibly your valves .... (you've totalled your engine) You should NEVER EVER RUN YOUR ENGINE WITH LOW OIL PRESSURE .... UNfortunately, this engine is also prone to clogged oil return journals As I found out accelerating up a mile long grade ... with plenty of fresh oil and the radio was up fairly loud until I noticed the knocking and the guage as low as it could go ... Oil was al stuck up under the valve covers and returned into the oil pan and the dip stick .... after the truck was shut off for a few minutes ... but with a knocking motor!

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Having problem with power steering 2000 Dodge Durango. Could it be the power steering pressure switch?

The pressure switch is only there to tell the PCM (computer) when the pump is developing high pressure. If the engine RPM is near idle (as when parking), the PCM will increase idle speed through the inlet air control (IAC) valve to prevent stalling. The pressure switch has nothing to do with the function of the power steering itself.
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Does power steering pump have check valve,the hose from pump to coolant keeps breaking

Some of the SUVs/Pickups did have pressure relief valves, yes.
2002-2003 Envoys have a history of substandard steering pump quality, often with broken shafts involved. Recommend both pump and hoses be replaced. Some years had a formal recall of these components for power steering hose leakage/breakage as well. The leaks most often occur when braking while the wheel is turned all the way to one direction.
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Power steering does not work at low rpm

What is the idling RPM of the engine when this is happening? There are many different types of power steering systems out there these days on vehilcles. It would make it a bit easier if we had a little more information before we give you advice. Year, Make Model, Milage, ect...Any other known issues with vehilce? Yes, the most likely culprit could be the pump because as time goes on the internal pump compoinents start to wear down and the tolerances become to great and at low rmp it cannot keep the proper pressure needed to give adequate power assist to the steering gear.
Hope this helps
Sincerely'
Roger
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1answer

How do I replace the power steering pressure switch on a 2000 durango 4.7L engine

The power steering pressure switch is threaded onto the high pressure hose that runs from the pump to the steering rack and pinion gear.
There are two hoses connected to the pump. Follow the high pressure line until you come to the switch, unthread it and install the new one. Fairly easy to do on this one. A little thread seal might be a good idea.
There may be some spillage so have a drain pan ready under the truck and have some new fluid ready to top it up afterward.
Just in case you are curious why the switch is needed I will give you the reason.
Your steering pump is driven by the engine so it does take a little horsepower. When turning it uses a little more power. So the switch sends a signal to the computer to bump the engine power up a little to compensate for the turning load. Keeps the engine speed from going erratic and/or stalling.
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I HAVE LOST ENGINE POWER. WHEN PULLING A TRAILER HAVE LOST POWER. RPM WILL RUN ABOUT 2000.

Duct tape a fuel pressure gage to the hood and watch it while driving when you loose power. if it does it could be your fuel pump or pressure regulator
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2002 GMC 2500HD Duramax No power brakes or power steering

TEST the vacuum pump. Both systems are run by it. Pressure should be at least 10psi right out of pump at 1000 rpm.
P.S. If pressure varies more than about 4 psi as the rpm vary the pump is failling.
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Losing power when the a/c is running

Hi Deettec

your problem seems very easy :) hope this one work with your envoy. Just buy AC DELCO carburetor tune-up conditioner.

How you use it: engine running , AC off please

1. detached the big black airflow hose which is attached in the mannifold of the engine block.

2. ask your friend to step on the gas pedal and set the rpm steady in 2000 rpm only.

3. then spray vigorously in 8 seconds the inside circle opening of mannifold while your friend steady step on gas pedal with steady 2000 RPM only.

4. after you spray, let your freind continue on gas pedal with 2000 rpm for 15 more seconds.

5. attached back the airflow big black hose to the manifold and you are ready to roll with your AC on.
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