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Old 13th September 2009, 15:34   #451
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Have this problem on my 2005 Indigo Marina TDI LX. It's happened once before about 2 weeks ago. While taking a left turn, it started ok but then just half a turn of the steering into it it felt like there was no powersteering. It got hard and I couldn't understand so turned to the right a bit and then back to the left turn it was fine. The last time it happened I remember thinking it maybe a stone or something that has come across the front wheel. The power steering pump is about 4000 km old. Car has done 67 k.
Earlier I can remember the left turns made a kind of whistling sound from the rack. This has stopped for a while now. But there is a kind of play which when I turn the steering wheel to the left it make a "duk duk" sound. Doesn't happen when I turn to the right. Also happens when the car is stationary and engine off. So obviously some thing is loose.
But what could stall the PS when I turn right at times? Faulty Rack?
Anyone been there?

Last edited by deutscheafrikar : 13th September 2009 at 15:36.
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Old 13th September 2009, 16:48   #452
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Quote:
Originally Posted by deutscheafrikar View Post
... just half a turn of the steering into it it felt like there was no powersteering. It got hard
But what could stall the PS when I turn right at times? Faulty Rack?
Anyone been there?
Faulty valve (probably the pressure relief valve) is the likely culprit. Other likely causes can be a kinked hydraulic pipe, or internal leakage from an oil seal in the rack.

Since the steering pump is new, and you don't have a heavy steering all the time, it is not likely to be a pump fault.
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Old 13th September 2009, 17:25   #453
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Im Sorry I meant the PS got hard when I turned to left only at times. Not towards right
Thanks SS-Traveller
So do I have to change the valve? or whole rack and pinion assembly
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Old 13th September 2009, 17:32   #454
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Originally Posted by deutscheafrikar View Post
Im Sorry I meant the PS got hard when I turned to left only at times. Not towards right
Thanks SS-Traveller
So do I have to change the valve? or whole rack and pinion assembly
Left or right, makes no difference to the diagnosis. Before changing the valve, check for a kinked high-pressure pipe. Also check for oil seal leaks first. IIRC the Indica/Indigo comes with adjustable pressure relief valves, and this may be sorted out without replacement. Change the valve as a last resort. The rack and pinion assembly does not need replacement.
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Old 13th September 2009, 20:58   #455
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SS-Traveller
Thanks for the info. I was trying to get the message across that both times it happened while turnign to the left. I made a mistake when I wrote right in the first post.
Any idea where this pressure valve/s are located on the rack? I will check for the pipe and leacking oil seals. I believe these leaking seals would be on the rack itself.
Is this pressure valve set by a Specialist or any mechanic would know it?

Last edited by deutscheafrikar : 13th September 2009 at 21:02.
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Old 13th September 2009, 21:21   #456
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Originally Posted by deutscheafrikar View Post
Any idea where this pressure valve/s are located on the rack? I will check for the pipe and leacking oil seals. I believe these leaking seals would be on the rack itself.
Is this pressure valve set by a Specialist or any mechanic would know it?
The relief valve should be a part of the power arm that moves the rack. Your TASS will be the best people to fix it - unless you know some competent individual mechanic.
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Old 22nd September 2009, 00:14   #457
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A relative's 2003 Indica got problems with gear changing to 1st gear.It turned out was the gear shaft between 1st and 2nd gear along with coupling(Linker) are worn out.After Hunting a lot ,bought the Shift lever(shaft) for Rs86.fine.But ,for the Coupler or Linker to which the shaft is to be attached is Not available for purchase alone - We Have to Buy it For Rs1927!If We Buy it ,a local brand linker/coupler According to the Workshop ,they will not survive for Long.hence the Buy.I Hope Linker/Coupling can be made available.
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Old 22nd September 2009, 16:08   #458
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At 42K kms over 23 months of rough riding, my V2 DLG Turbo is currently experiencing some in-cabin shivering / modulated rhytmic jerks.

This occurs only when i stop at signals or idle.

The gear knob starts throbbing as an indication of what is to follow.

Any prior investigation to such a symptom will certainly help me understanding the cause of the issue.
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Old 22nd September 2009, 16:14   #459
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Engine mounts maybe? Vibrations transmitted into the chassis usually point to the mounts.
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Old 22nd September 2009, 16:27   #460
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Quote:
Originally Posted by ImmortalZ View Post
Engine mounts maybe? Vibrations transmitted into the chassis usually point to the mounts.
Will certainly check the mounts.

The worry is only cause of the fact, that despite a completely damped body - incabin & under-body - this phenomenon has left me surprised.
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Old 22nd September 2009, 16:45   #461
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Does this happen at all RPM's or at a specific one ?
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Old 23rd September 2009, 10:54   #462
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Does this happen at all RPM's or at a specific one ?
Only between 850 & 1500 rpm bandwidth. Practically speaking,only at idle which is 850rpm range until i shift up to 2nd gear.

Once near the 2K mark, it's back to it's smooth self.

What corelation do we make of this, please.
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Old 23rd September 2009, 22:47   #463
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I was facing this some time back on Tata Indigo Turbo.. specially in hot afternoons or after a long run in bumper to bumper traffic.
suggested by some member , i had the EGR checked which was ok. Everything else was ok, all filters new.
So had the car Ac inspected at Ramu Ac , Andheri. The Ac thermostat had conked off , leading to severe load on compressor and even the blower speed would reduce . This directly would result on load on alternator and eventually engine. Causing it to vibrate once the temperature would reach half way mark. There would be a substantial power / pickup loss with increased NVH. Cost of replacing the thermostat (BEHR ) was rs.500/ with labour plus the entire service came to Rs,2000/-
So now after the AC service and replacing the thermostat , the problem has vanished. And the car doing as well as ever.
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Old 23rd September 2009, 23:43   #464
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Quote:
Originally Posted by SRShrikanth View Post
Only between 850 & 1500 rpm bandwidth. Practically speaking,only at idle which is 850rpm range until i shift up to 2nd gear.

Once near the 2K mark, it's back to it's smooth self.

What corelation do we make of this, please.
I think your problem could be related to the worn-out engine mounts. At around 45k mark one regular suspect is this underbody engine mount. Name:  Underbody_EngineMount.JPG
Views: 855
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I could not locate an image for you so made a crude drawing.

The rubber molded bush is built into this mount and holds the engine from underneath. The rubber dampens the vibrations. Now when this rubber cracks and becomes loose in that housing, typically happens after 40k mark, the car does feel vibrations within the cabin at idle to low RPMs. Check for this culprit. Your TASS can check for this from underneath after the car has been raised on a platform.
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Old 24th September 2009, 15:29   #465
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Quote:
Originally Posted by HIGHNOON View Post
I was facing this some time back on Tata Indigo Turbo.. specially in hot afternoons or after a long run in bumper to bumper traffic.
suggested by some member , i had the EGR checked which was ok. Everything else was ok, all filters new.
Since I had the AC thermostat checked only 2K kms ago as part of regular service and importantly am not noticing any drop in cooling degrees, am ruling this one out of contention for the moment. Thanx for info though, as i can now keep a check going forward.


Quote:
Originally Posted by Zappo View Post
I think your problem could be related to the worn-out engine mounts. At around 45k mark one regular suspect is this underbody engine mount.
In all probability, this seems to be the culprit. A final check at my TASS is due over the weekend. Thanx for the drawing & the insight.

Last edited by SRShrikanth : 24th September 2009 at 15:30.
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