Gq PATROL Vibration

Submitted: Friday, Apr 10, 2009 at 02:34
ThreadID: 67729 Views:3977 Replies:5 FollowUps:3
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Hi all im after some guid to a vibration through the whole 4by not in steering wheel ,starts at 40ks and get worse as speed increase ? makes no difference if rolling in no mans gear either ?
noticed driver front wheel bearing a little play but not to bad to put wobble in steering ,it started after i changed one front tyre but again steering is smooth im yet to change it again to c if it makes any change ,one of the arms to rear diff is bent a little could that course prob to diff ? i notice a squeeky grind sound when at 50ks when putting under load in say 3rd gear ?
Any idears would be a great help.
thanks
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Reply By: Ozhumvee - Friday, Apr 10, 2009 at 05:32

Friday, Apr 10, 2009 at 05:32
Easy get rid of the tyre, replace with the spare and go for a run.
If it still there it might be driveline related, are the front hubs locked?
Unlock them and go for a run.
Peter
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Reply By: Bonz (Vic) - Thoughtfully- Friday, Apr 10, 2009 at 06:17

Friday, Apr 10, 2009 at 06:17
Also try rotating the tyres, drivers side to passengers side
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Reply By: Member - MUZBRY(Vic) - Friday, Apr 10, 2009 at 08:29

Friday, Apr 10, 2009 at 08:29
Gday
Just change the same wheel and check again. The squeaky grind is more likely to be a universal joint gone solid , that will make the whole vehicle shake.
Murray
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Follow Up By: 4berock - Friday, Apr 10, 2009 at 09:28

Friday, Apr 10, 2009 at 09:28
I will check the universal joint as its been driving smooth as for past 12mths and every 3 months i get rotation and alignment with balance,the wheel i put back on was the one that was origanally on there and things where fine i have been hearing a clunk suond between gears liketailsharf uni slap so it comes to mind now it aswell just could be i shall check
thanks again imput
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Follow Up By: Member - MUZBRY(Vic) - Saturday, Apr 11, 2009 at 10:15

Saturday, Apr 11, 2009 at 10:15
Gday
You must also remember that the uni joint when worn out is not always loose. The rollers will become locked and rigid, the only way to find out is to undo the end of the shaft and move in all directions to see if one way is ceased. Check all joints this way. If you have a centre bearing, check it as well.
Murray
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Follow Up By: 4berock - Sunday, Apr 19, 2009 at 00:37

Sunday, Apr 19, 2009 at 00:37
thanks MUZBRY
i found prob rear uni stiffer than the old fella at a strip joint haha
Thanks all for ur input and advice
cheers
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Reply By: Travelling Pixie - Friday, Apr 10, 2009 at 08:51

Friday, Apr 10, 2009 at 08:51
You have mentioned vibration rather than wobble or shake so the following may not be useful.

GQ shake is common and there's lots of discussion across the net about various problems and solutions. Some solutions turn to panhard rod being replaced/repaired. Lifted suspension seems to exaggerate the problem.

GQ's are apparently sensitive to balance of wheels and many people get on-car balance done - I tried this with a replacement set of wheels and it worked well for me.

My original problem turned out to be near-new tyres being out of round. But I reckon the on-car balance with replacement wheels was better than the off-car balance that I have had done since.

Good luck
AnswerID: 359058

Reply By: mechpete - Friday, Apr 10, 2009 at 15:14

Friday, Apr 10, 2009 at 15:14
I would be checking tyres for out of round to start with .
the sqeak you mention under acceleration my guess would be uni joints , make sure you replace them with greasable ones
the steering wobble in mine was found to be lack of preload on the front swivel head bearings . after about 10 yrs of putting up with it ,fixed .
cheers mechpete
AnswerID: 359088

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