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Crazy power steering
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Topic: Crazy power steering (Read 2266 times)
RIGEROUS
Newbie
Posts: 11
Crazy power steering
«
on:
December 14, 2009, 05:38:08 PM »
My 1986 Scottsdale has developed some bad habits in the steering department. Sometimes it works fine, sometimes you can not turn the steering wheel even with excessive force, (much harder than with the power steering disconnected). The scary thing is sometime the truck will unexpectedly dart to the right or left when driving. I just changed the pump and fluid but that did not fix it. Wondering if the steering box internals are bad, sticking hydraulic valve
Any ideas would be much appreciated.
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zieg85
Global Moderator
Senior Member
Posts: 7549
Re: Crazy power steering
«
Reply #1 on:
December 14, 2009, 05:52:50 PM »
is it a 4x4?
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Carl
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/
VileZambonie
Global Moderator
Senior Member
Posts: 19053
Re: Crazy power steering
«
Reply #2 on:
December 14, 2009, 08:48:24 PM »
I would check the front end out thoroughly.
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, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
Dave Kay
Newbie
Posts: 74
Re: Crazy power steering
«
Reply #3 on:
December 14, 2009, 09:17:08 PM »
Bendix-type power-booster or vacuum powerered steering?
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RIGEROUS
Newbie
Posts: 11
Re: Crazy power steering
«
Reply #4 on:
December 15, 2009, 04:55:55 PM »
It is 4x4, just a high pressure and return hydraulic line from the pump to the box, no vacum lines. Can't find anything wrong with the front end parts either. Could it be inside the steering box ?
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VileZambonie
Global Moderator
Senior Member
Posts: 19053
Re: Crazy power steering
«
Reply #5 on:
December 15, 2009, 05:01:27 PM »
Jack it up and check the ball joints, check the front end dry parked on the ground. Check the steering shaft and coupler. If everything checks out ok remove the pump from the equation. If it's still sticking or binding get a new gear box.
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, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
thirsty
Senior Member
Posts: 1289
Re: Crazy power steering
«
Reply #6 on:
December 15, 2009, 07:18:12 PM »
check your universal joints also. I've had the same problem before and found that the u-joint was seized up on two of the caps not allowing it to turn correctly.
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Real trucks are built, not bought
Build thread
Give me a long enough lever and a place to stand, and I shall move the earth or break this bolt...Whatever, just hold my beer!
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Crazy power steering