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07 Silverado Power Steering Pump Issue


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I own a 2007 Silverado 1500, Z71. I kept having a squeal when the motor was running and would increase when you accelerate. I thought it was a idler pulley, changed it and no change. I changed the serpentine belt, and helped for a a day and was back. I then thought it was the bearings in the altenator plus, I noticed that the voltage would fluctuate when I would drive. That fixed it initially, then about 5 miles later, the squeal was back. Prilor to me changing all of this, I had to change the water pump.

 

Anyways, I noticed that there is a bunch of fluid around the powersteering pump reservoir, and when I pulled the cap off it was full of fluid. I can't tell where the fluid is coming from, and it is all around the reservoir, and on the steering knuckle as well. I am not sure exactly why this is happening. Does anyone have any ideas?

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Did you change the tensioner pulley? Most likely that is worn and is not holding enough tension on your belt.

 

I would look at the high pressure line and make sure it does not have any leaks.

I have not changed the tensioner pully. That was my next thing to change. IF there is a leak with the high pressure line, is that a whole new pump or a line?

 

I also know there is two lines to it. I have changed a power steering pump in an 03 GMC seirra, so am familiar with that. I'm assuming it's just about the same>

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The high pressure line is separate from the pump. If it is leaking you should be able to tell where from. Look at the steering box and trace the line back to the pump. There will be two lines, high pressure and a low pressure return line.

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  • 5 months later...

The cap on the power steering reservoir popped off when I did donuts. The tip was pick marked and wouldn't go back on. After that the steering squeaked relentlessly and was a little stiff. I duck taped the cap on but what do I do to correctly fix the issue

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The cap on the power steering reservoir popped off when I did donuts. The tip was pick marked and wouldn't go back on. After that the steering squeaked relentlessly and was a little stiff. I duck taped the cap on but what do I do to correctly fix the issue

 

 

Stop doing donuts.

 

Actually he should do donuts in reverse and then remove the duct tape. :thumbs:

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