My RR judders when you hit a pot hole...

I have a '93 Classic 2.5Tdi. Sometimes if you hit a bump or pot hole doing 50mph+ the whole car starts juddering, and it keeps doing it until you slow down a bit. Quite unnerving! Has anyone experienced this before? The traction control warning light is on, could it be related to that?

Be inclined to check out tie rod ends. The traction control issue might not be causative and could be due to something else. I had the same symptoms in a 109 some years ago and it was a tie rod that was flogged out and just shook all over the show. Just a thought.....

hiya andy , the usual cause of a bad shudder like you describe is play either in the wheel bearings or the swivel hubs , usually the later , you need to check the pre load as described in the book , i just forgot the exact figures but iam sure someone will tell you what they are .
rick.

Thanks for your advice.

I've just had to replace a wheel bearing on my Transit, but the symptoms for that were completely different, there was no shudder, just a horrible whining noise. The Range Rover isn't making any noises it shouldn't be, just the shuddering. Also, when it starts doing it, it keeps going until you slow down, as if it's doing it by itself??

yes mate but the rangerover is a completely different animal altogether than a tranny van ..................trust me .
rick.

its the panhard rod bushes (the bar that ties the chassis on the D/s to the bracket on the front of the axle P/S) apologies if thats teaching you to suck eggs. will cause bad if not violent juddering that can usually only be cured by lifting off and waiting for the rover to slow down and behave........ if its particularly worn it can be quite buttock clenchingly unnerving for a few hundred metres...

Cheers Steve

ebbadger said:

its the panhard rod bushes (the bar that ties the chassis on the D/s to the bracket on the front of the axle P/S) apologies if thats teaching you to suck eggs. will cause bad if not violent juddering that can usually only be cured by lifting off and waiting for the rover to slow down and behave........ if its particularly worn it can be quite buttock clenchingly unnerving for a few hundred metres...

Cheers Steve

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Thanks, that's exactly what I'm experiencing. Would you say this is an particularly difficult or expensive job? I've never done anything like this myself, I use a small independant garage to carry out work on my vehicles.

Edit - Just googled "panhard rod bushes" to find out what they are, and it appears they're only a couple of quid. If they're easy to replace, would anyone be able to talk a n00b through the process?

Thanks, Andy

could be panhard rod bushes , they are easy enough to check, but i think you`ll find its the swivel hub pre load after 17 yrs ownership and doing the job more than once or twice for myself and others the syptoms you described sound very much like what i have suggested .
rick.

rick071155 said:

could be panhard rod bushes , they are easy enough to check, but i think you`ll find its the swivel hub pre load after 17 yrs ownership and doing the job more than once or twice for myself and others the syptoms you described sound very much like what i have suggested .
rick.

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Thanks, I will check out both. Much appreciated.
Andy

Andysvan said:

Thanks, that's exactly what I'm experiencing. Would you say this is an particularly difficult or expensive job? I've never done anything like this myself, I use a small independant garage to carry out work on my vehicles.

Edit - Just googled "panhard rod bushes" to find out what they are, and it appears they're only a couple of quid. If they're easy to replace, would anyone be able to talk a n00b through the process?

Thanks, Andy

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Andy, get a bar to pry the panhard rod, you should see movement if its there, Ive experienced swivel preload issues but its usually far less violent and you can often accelerate through it( panhard issues are quite worrying and violent if worn badly and it feels as though the whole body wants to shake free of the chassis), as for doing the job, undo the nuts remove the bolts, remove the panhard rod, burn the bushes and get a hacksaw blade to cut the inner bush and the cut a slot in the outer metal bush collar and cold chisel it out its a very tight fit in the panhard rod... ...be prepared for a lot of swearing it can be a pig of a job, replace with polybushes as they are far better , not too expensive and fit easily in two halves

Cheers Steve

ebbadger said:

Andy, get a bar to pry the panhard rod, you should see movement if its there, Ive experienced swivel preload issues but its usually far less violent and you can often accelerate through it( panhard issues are quite worrying and violent if worn badly and it feels as though the whole body wants to shake free of the chassis), as for doing the job, undo the nuts remove the bolts, remove the panhard rod, burn the bushes and get a hacksaw blade to cut the inner bush and the cut a slot in the outer metal bush collar and cold chisel it out its a very tight fit in the panhard rod... ...be prepared for a lot of swearing it can be a pig of a job, replace with polybushes as they are far better , not too expensive and fit easily in two halves

Cheers Steve

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well nowt else to add really , from the bloke that reckons panhard bush replacements hard work ffs