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Author Topic: ticking noise  (Read 2972 times)

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3.2 paisley wagon

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ticking noise
« on: 19 January 2011, 17:09:01 »
 Hi all i am a newbie, been reading this forum for some time but never got round to registering until now.  Need some advice on a problem i am having with my 3.2MV6 2002.  Engine has developed a ticking noise which seems to be coming from behind the plenum/engine area.  When 1st started most times no ticking.  After a while at idle the ticking starts. It sometimes comes and goes but is only noticeable at idle.  It used to be ok when cold then started when at running temp but i noticed today it done it at start up.  I have also noticed a slight vibration in the engine although revs are fine. Started this morning cold and engine shuddered for a few seconds as if going to stall and then revs picked up.  Any suggestions guys??   
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feeutfo

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Re: ticking noise
« Reply #1 on: 19 January 2011, 17:28:30 »
Pedal trick for codes, when's the belt due, when was oil last changed and how often?

Hopefully it's just a lifter and some wynns lifter treatment will sort it, but it could be a number of things tbh.
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3.2 paisley wagon

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Re: ticking noise
« Reply #2 on: 19 January 2011, 17:48:08 »
Hi, oil changed last 22/12/10 and before that Jan 2010. Using 5w30 and genuine vaux filter.  Timing belt changed last year.  before last oil change tried lifter treatment.
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3.2 paisley wagon

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Re: ticking noise
« Reply #3 on: 19 January 2011, 17:53:52 »
Have obd11, no present codes although in december got codes po420 and po430.  reset and have not come back.  Noticed a bit of oil around the oil pressure switch and have noticed a little flicker of oil light sometimes not always on start up.
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sandune

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Re: ticking noise
« Reply #4 on: 19 January 2011, 17:58:29 »
AS Chrisgixer suggested get the codes anduse the vx oil 10W-40  :y
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3.2 paisley wagon

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Re: ticking noise
« Reply #5 on: 19 January 2011, 18:01:05 »
Hi, there are no current fault codes and 5w30 fully synthetic is what vauxhall recommend for my car.
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sandune

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Re: ticking noise
« Reply #6 on: 19 January 2011, 18:09:51 »
P0420 catalyst system efficiency below threshold-(bank 1)
P0430 catalyst system efficiency below threshold (bank2)
Check to see if rubber covers on the plugs have not  perished or an incursion of oil in the plug wells :y
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3.2 paisley wagon

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Re: ticking noise
« Reply #7 on: 19 January 2011, 18:12:40 »
sandune, would oil in the plug wells not cause misfire?
car is running ok with only a slight vibration.
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ffcgary1

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Re: ticking noise
« Reply #8 on: 19 January 2011, 18:12:42 »
Vx on their services use semi syth 10/40 oil so use that, fully syth a waste of hard earned and a bit too thin for my liking in this cold weather.
It could be the exhaust manifold gasket showing signs of failure, but try a change of oil and filter first and see if things improve. :y
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3.2 paisley wagon

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Re: ticking noise
« Reply #9 on: 19 January 2011, 18:14:11 »
oil and filter only changed 2 weeks ago
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ffcgary1

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Re: ticking noise
« Reply #10 on: 19 January 2011, 18:16:05 »
But with the wrong oil as afaik.
 ::)
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feeutfo

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Re: ticking noise
« Reply #11 on: 19 January 2011, 18:17:21 »
Oil will be fine. Provided the mileage is sensible...?
Did the lifter treatment make any odds last time? Did it quieten things down? I take it this is a different noise to litters?

Shouldnt be the exhaust manifold as they changed the construction on later cars to stop them failing I believe.

Did find a loose spark plug on my old car once....?

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3.2 paisley wagon

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Re: ticking noise
« Reply #12 on: 19 January 2011, 18:17:37 »
car had a new engine fitted by dealer in 2004 and has only covered 41,000 miles. have been using 5w30 for over 2 years
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3.2 paisley wagon

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Re: ticking noise
« Reply #13 on: 19 January 2011, 18:20:01 »
Lifter treatment made no difference.  Using mechanics stethascope seems to indicate something behind plenum at back of engine bay
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feeutfo

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Re: ticking noise
« Reply #14 on: 19 January 2011, 18:21:26 »
If the oil specified is the dexos2 fully synthetic 5w30 that's ok. As is the 10w40 semi synth, which has shorter oil change intervals.

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