2000 Tahoe new power steering pump now can't turn

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Nickct203

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Hi all, I'm new here but desperately need help. I have a 2000 Tahoe 5.3L around 225k. I was having a problem turning left at slow speeds or at idle. I checked my front end and notice some stuff needed changing. I replaced inner and outer tie rods, both sides, idler arm, pitman arm and both sway bar ends. Still no change to turning left. The power steering pump would whine a bit so I figured that could be it. Yesterday I changed the pump, kept the same reservoir. It was late last night so this morning I went to check it out and now I can not turn at all. If o jack it up it goes no prob. But under load will not budge. Even at a roll it won't turn. This is our only vehicle and I need it fixed. Could the pump I bought be a bad pump from the store?
 
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Nickct203

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Did you perform the bleed procedure. There usually is an instructional sheet with the replacement pump.
Yea, I did the bleed steps. I pulled it back out and went and got a whole unit with the reservoir attached. So we'll see how it goes in a few.
 
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Nickct203

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Ok I replaced the pump assembly and it works great. Only problem is my original one still. At low speed or at a stop turning left is extremely hard. Like I have no power steering. I almost took out a fire hydrant yesterday pulling up my street. Any ideas? I replaced idler arm and bracket, pitman arm, inner and outer tie rods both sides, sway bar end links, both hubs and bearings. Hubs went bad first, then noticed the rest of the parts were bad too so I replaced those front end steering components and nothing has helped.
 

1992rs

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Sounds like your steering gearbox went bad. Can you turn right perfectly fine?
 
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Nickct203

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Sounds like your steering gearbox went bad. Can you turn right perfectly fine?
Yea to the right gives no issues at all. The PS pump whines a bit too turning to the left right before and during it giving me an issue
 

PG01

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I remember reading something about replacement aftermarket pumps for late 90’s early 2000’s being bad out of the box ... but maybe you swapped parts and put them in backwards by accident ....it happens
 
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Nickct203

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I remember reading something about replacement aftermarket pumps for late 90’s early 2000’s being bad out of the box ... but maybe you swapped parts and put them in backwards by accident ....it happens
The first pump I bought was bad took it out and got one that allows me to drive the truck. IDK y turning to the left at slow speeds or idle doesn't work. It's not a constant thing outta 5 left turns maybe 2-3 times it happens. And the rest of the parts as far as I've experienced only go one way.
 

gin_road

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Look at the adjustment screw on steering box. It a bolt with a lock nut at its base. Make sure it has not come loose.
 

watuzi

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hard turn to one side is a bad steering box.

How many hours will a mechanic charge to replace one? My '05 Tahoe has a lose of power steering when I make a right turn from a complete stop. This has happened twice now. Changing the gear box is probably not something a non-mechanic can easily do.
 

PG01

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How many hours will a mechanic charge to replace one? My '05 Tahoe has a lose of power steering when I make a right turn from a complete stop. This has happened twice now. Changing the gear box is probably not something a non-mechanic can easily do.
Its only a few bolts. How is your belt tho?
 

Chubbs

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How many hours will a mechanic charge to replace one? My '05 Tahoe has a lose of power steering when I make a right turn from a complete stop. This has happened twice now. Changing the gear box is probably not something a non-mechanic can easily do.


labor charge will be around $100 per hour @ 2-hours I would say.

but the garage is going to run the bill up on a new unit and PSF. I stopped taking my vehicles to the garage when I learned that I could buy the parts for 1/2 the price I was being charged for whatever was acquired per line items of the bill.
 

Crcz71

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10FC445E-CA48-4502-B9B3-5336743E4977.png
op stop dont by a gear box. I thought the same thing when mine crapped out. But it was evo valve in the back of the pump. You need to get the by pass that does away with that valve. The pic is what you need. Some of the guys here have stated that turning right but not left is a bad gear box that may be true in some cases but the evo being bad will give the same problems. When mine went out the pump started whining so I replaced it clueless about the evo valve. Reinstalled the new pump problems got worse. Learned about by pass Pulled the pump again and installed it and problems resolved.
 

watuzi

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Its only a few bolts. How is your belt tho?

Funny you should ask, but the belt sometimes makes a squeaking noise when cold.. It only does this once in a while. Are they connected?
 

watuzi

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View attachment 194761 op stop dont by a gear box. I thought the same thing when mine crapped out. But it was evo valve in the back of the pump. You need to get the by pass that does away with that valve. The pic is what you need. Some of the guys here have stated that turning right but not left is a bad gear box that may be true in some cases but the evo being bad will give the same problems. When mine went out the pump started whining so I replaced it clueless about the evo valve. Reinstalled the new pump problems got worse. Learned about by pass Pulled the pump again and installed it and problems resolved.


How can I test that evo valve? I don't want to waste money blindly replacing parts.
 

Crcz71

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How can I test that evo valve? I don't want to waste money blindly replacing parts.
Not sure of a way to test it but look at it this way. Your looking at putting a gear box in. Well which is the cheaper of the two?
 

bottomline2000

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I had a similar issue with my truck. I replaced the steering gear and it turns both ways fine now. I also have hydroboost on my truck and my brake pedal feel got better as well. I think there was a flow issue with the steering gear box as my pump would whine as well and it's fairly new. I looked and do not have an Evo on my steering pump..

Sent from my SAMSUNG-SM-T377A using Tapatalk
 

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