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08-29-2020, 03:29 PM
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#1 |
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Registered User
Join Date: Apr 2014
Location: Southern Iowa
Posts: 310
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Violent wobble in new POL rack & pinion install
Just finished up installing Performance Online's power rack kit. The install was pretty basic. I’m using a new pump as well. I followed GMs procedure for bleeding out the air. So I’m ready to fire this thing up and see how it works. Start the truck and let it idle a bit, while visually inspecting for leaks or any clearance issues. Everything looking good so far. Get in the truck and grab the steering wheel to see how effortless it is now, and as soon as I start to turn the wheel , the devil takes over and starts violent jerking the wheel back and forth so hard I thought it broke both my wrists. WTH! I shut the motor down quickly.
Anyone have any ideas as to what’s going on?
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1972 C30 Grain Hauler, 350/400 1967 1500 GMC Stepside SWB, In Transformation Process 1967 RS/SS Camaro 350/TKO600 |
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08-29-2020, 04:46 PM
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#2 |
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Registered User
Join Date: Jun 2015
Location: Carlos MN
Posts: 2,132
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Re: Violent wobble in new POL rack & pinion install
Fluid lines on backwards?
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08-29-2020, 05:42 PM
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#3 | |
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Registered User
Join Date: Apr 2014
Location: Southern Iowa
Posts: 310
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Quote:
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08-30-2020, 08:49 AM
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#4 |
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Moderator
  
Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: Violent wobble in new POL rack & pinion install
Did you contact POL and ask them yet?
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Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats? |
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09-14-2020, 12:19 AM
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#5 |
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Senior Member
 Join Date: Dec 1999
Location: Southern California
Posts: 2,884
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Re: Violent wobble in new POL rack & pinion install
Was the pump specified for rack an pinion? If not you might want to install a flow restrictor.
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Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746 |
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03-07-2021, 09:55 AM
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#6 |
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Registered User
Join Date: Mar 2020
Location: The Woodlands,Tx
Posts: 588
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Re: Violent wobble in new POL rack & pinion install
I know I am late to this thread but back in the day I had the same problem on a corvette I was working on. Power steering lines backwards. Very dangerous to your arms
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03-08-2021, 10:26 AM
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#7 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 22,066
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Re: Violent wobble in new POL rack & pinion install
[sarcasm] I love when someone asks for solutions to an issue.... options are provided/discussed, & then there's no definitive resolution provided so that others might benefit. [/sarcasm]
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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03-08-2021, 04:40 PM
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#8 |
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Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,939
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Re: Violent wobble in new POL rack & pinion install
I thought that was odd too Scoti. This was also his last post?
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Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
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03-10-2021, 09:16 AM
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#9 |
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Registered User
Join Date: Mar 2007
Location: Scotts, Michigan
Posts: 3,774
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Re: Violent wobble in new POL rack & pinion install
This is a pretty common occurrence.
Sounds like you need to bleed the air out of your system. If you Google "bleeding power steering" you can find all sorts of write ups. Basically with the truck off (not running) and the front wheels supported off the ground, you keep turning lock to lock slowly. With the cap off your reservoir you will see the bubbles from the air escaping the system. Repeat until you see no bubbles/air. Thanks Marc
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…………...........__________ .................. ((__|__||___\____ ..;.;;.:;:;.,;..;((_(O))____ (_(O)) 1948 Chevy Truck - Finished SOLD!! 1953 Chevy Suburban "Family Truckster" Completed: Spring of 2021 http://67-72chevytrucks.com/vboard/s...d.php?t=605484 1994 4x4 Blazer - "Field Find" https://67-72chevytrucks.com/vboard/...ferrerid=30857 |
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