Tap/Knock Through Steering, Am I Just Going Crazy?

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Tap/Knock Through Steering, Am I Just Going Crazy?

Postby HandsomeLux on Sat, 16 May 2020 10:55 +0000

Hi Everyone,
Hoping someone can help me figure out what is going on with the steering in my 2018 SR Dual Cab...or maybe just tell me I am crazy if need be...

Background
This is the first Hilux/IFS 4WD I've had (had an 80 series cruiser before). I've had it for just over a year and it is still bone stock. Since first getting it, I've noticed something I think is weird with the steering which has been very tricky to describe, kind of an exaggerated steering feedback/tapping feeling/knock/looseness through the steering wheel. I'm not talking about standard steering wheel 'pull' over uneven surfaces but a tap/kick/knocking feeling that goes with the normal 'pull' type of feedback as you drive over a bump. The wheel also seems to 'pull' more aggressively than I have experienced in other vehicles over corrugations etc. I'm not that familiar with mechanics and am certainly no steering specialist but if someone asked me to guess based on the feeling of it, I'd say it feels like there is some kind of play or looseness in the steering column/damper (if that's possible). Toyota reckon it's nothing at all but it's been grating on me now for a while...Could this just be standard in IFS 4WDs? Has anyone else experienced this? (I did search before posting this but couldn't find this exact issue).

Details
I can feel it most when going slowly (0 to 20kph) and when the steering wheel is centered or slightly turned in either direction. On hard lock, say turning into a driveway, it isn't an issue. It's worst when driving over uneven road, bumps or slightly cracked road. As a test, I drove down a lane way with bad tarmac which I know makes it act up, centered the steering wheel and locked my hands as firmly as possible. What really bothered me was that even when the steering wheel wasn't moving, I could feel a side to side bouncing/tap coming through the wheel, like the wheels/tyres were moving side to side within a certain range without the steering wheel moving at all.

Whenever I go to my dealer and bring it up again, they look at me like I am crazy and I called a local (and very well respected) steering specialist and the bloke there basically said it was unlikely to be a real issue if the car is so new/stock...

Any ideas would be much appreciated and hope you're all staying well out there with everything going on at the moment.
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby numberplate on Sun, 17 May 2020 4:55 +0000

doesn't sound normal to me , and mine doesn't do anything like that. RAV 4s had the same issue a couple of models ago , and the fix / recall was to replace the jointed shaft between the steering column and the steering rack.
could be a manufacturing defect in the steering rack or its internal valving , who knows.
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby hylux on Sun, 17 May 2020 7:49 +0000

I had this on a 60series and an old 2003 mazda 6. The mazda was actually a recall. It was the slip joint in the steering coloum. I fixed the mazda again last year. The grease dried up.
Its a simple fix and would take 30 minutes if you wanted to try.
1. Find the slip joint. In the mazda and my 2010 hilux its under the dash going into the fire wall. The old 60 wss in the engine bay
2. Tilt steering wheel to fully up.
3. Locate slip joint and mark both so you know where they realign when putting together.
4. Unbolt the outer slip joint end
5. Remove by pulling outer section.
6. Clean then regrease with new silicon or lithium grease. Cant remember the correct type but any grease will do to prove the fault
7. Put back together aligning the marks you made.

This may explain
https://m.youtube.com/watch?v=am_4KlNYmuU
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby HandsomeLux on Sun, 17 May 2020 10:28 +0000

numberplate wrote:doesn't sound normal to me , and mine doesn't do anything like that. RAV 4s had the same issue a couple of models ago , and the fix / recall was to replace the jointed shaft between the steering column and the steering rack.
could be a manufacturing defect in the steering rack or its internal valving , who knows.


Thanks for responding. Yep, pretty annoying, I'm going to investigate it further and will post updates.
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby HandsomeLux on Sun, 17 May 2020 10:34 +0000

hylux wrote:I had this on a 60series and an old 2003 mazda 6. The mazda was actually a recall. It was the slip joint in the steering coloum. I fixed the mazda again last year. The grease dried up.
Its a simple fix and would take 30 minutes if you wanted to try.
1. Find the slip joint. In the mazda and my 2010 hilux its under the dash going into the fire wall. The old 60 wss in the engine bay
2. Tilt steering wheel to fully up.
3. Locate slip joint and mark both so you know where they realign when putting together.
4. Unbolt the outer slip joint end
5. Remove by pulling outer section.
6. Clean then regrease with new silicon or lithium grease. Cant remember the correct type but any grease will do to prove the fault
7. Put back together aligning the marks you made.

This may explain
https://m.youtube.com/watch?v=am_4KlNYmuU


Thanks mate, I am going to have a go. I also found a few more videos based on yours that might help. When I get to the bottom of it, I will post any solutions that I find as I go.
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby numberplate on Mon, 18 May 2020 5:17 +0000

can you let us know what you find ? better still take photos as proof , so you can let head office know as well.
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby HandsomeLux on Sat, 23 May 2020 10:56 +0000

Hi All,

Quick update: As both numberplate and hylux suggested, and after watching a few videos online, I got down under the steering column and sure enough, if I hold the slip joint and move the steering wheel side to side quickly, there is knocking/bumping/play between the two. Weirdly, the whole shroud that the slip joint sits in moves around too. Not sure that is kosher.

Had a busy week at work so I haven't been able to take it into the dealer but will take your advice here numberplate and will take photos and video before letting Toyota touch it. Someone I know has recommended a knowledgeable workshop tech at a local dealer so I am going to take it to him and see what he says. I'll post some pics this afternoon of the joint.
Thanks
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby numberplate on Sun, 24 May 2020 5:03 +0000

HandsomeLux wrote:Hi All,

If I hold the slip joint and move the steering wheel side to side quickly, there is knocking/bumping/play between the two. Weirdly, the whole shroud that the slip joint sits in moves around too. Not sure that is kosher.



a tiny amount of play in the splines should be expected , otherwise they would bind. Maybe they are supposed to be greased , and yours wasn't. Glad you are narrowing down the problem
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby hylux on Sun, 24 May 2020 8:43 +0000

The dreaded tail shaft slip joint bug has a love child growing in your car :twisted:
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby HandsomeLux on Mon, 25 May 2020 11:08 +0000

Hi All,
Photo as promised. Please let me know if it doesn't post correctly as this is my first pic posted here.

Interesting development: I tested the joint a bit more and found that when the steering wheel is turned slightly left of center the shroud at the base (where you see the green ring) is completely solid, does not move or have any play as I described in the last post. Only when centered or slightly right does this happen. Does anyone know what is on the underside of that foam that the shaft goes through?

I'm booked in with Toyota on Wednesday so will update then. Image

Image

https://imghostr.net/image/steering-joint.RSW9y
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby HandsomeLux on Wed, 27 May 2020 3:19 +0000

I titled this thread 'Tap/Knock Through Steering, Am I Just Going Crazy?'...and apparently I am just going crazy.

I went to Toyota today, the diagnostic specialist went for drive with me, he agreed that he felt something through the steering wheel over some corrugations and the driveway of the dealership but nothing out of 'spec'. We got back and he spoke to his managers. Managers came outside and said the young bloke doesn't think there is anything wrong but will put it up on the hoist just to check no components are touching etc.

Apparently the steering is all as it should be and nothing is wrong with it. They said that they compared with a new one and it is the same level of play in the intermediate shaft. Only thing I can really do I suppose is ask for a test drive of a new one and see what feeling I get through the steering before I take the issue any further.

Sorry all, I wish I had a solution to post here but no such luck for now.
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby numberplate on Thu, 28 May 2020 4:49 +0000

all you can do is compare it with another one. With my car there is no such knock , and I cant feel any play either
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Re: Tap/Knock Through Steering, Am I Just Going Crazy?

Postby Bushwalker8 on Fri, 29 May 2020 4:18 +0000

Mine doesn't have any knocking and I can't detect any play whatsoever between the wheel and shaft at the firewall in the straight ahead position.
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