S40 V40 Cars: - noise from camshaft position sensor?

phantom51 · Apr 17th, 2012, 23:44

Hi, I have just acquired my daughters s40 sport (03 plate) it had a little Bump to the front but thats been sorted - It has just had an oil change, oil and air filters have been replaced and the car starts first time every time - but sometimes I get a "rattle" which sounds a bit like gravel being shaken about in a biscuit tin - if I unplug the camshaft position sensor the noise stops but whether its plugged in or not the engine runs just the same and doesnt appear to miss a beat. I havent taken it on the road yet but am about to take it for an m.o.t. any advise would be greatly appreciated. Have done a search but cant see the problem anywhere else.

Volvo2002 · Apr 17th, 2012, 23:57

Do you mean the solenoid? If you've disconnected that plug and the noise goes away, you're looking at a failed VVT pulley (Variable valve timing)

140 quid for the part and around 150-180 for labour.

phantom51 · Apr 17th, 2012, 23:59

its the plug on the end of the camshaft near the air filter unit - on the right of the engine as you look into the compartment

Volvo2002 · Apr 18th, 2012, 00:03

Is it this?

Forgive me if I'm way off. It's just that the VVT rattle usually disappears once you unplug that cable

phantom51 · Apr 18th, 2012, 00:08

No its on the opposite end of the block and it says in the manual that its the camshaft position sensor, I took out the one bolt that held it in position, withdrew it and gave it a clean but there were no moveable parts on it and so I put it back. The noise isnt there all the time - some days it doesnt do it at all - but when it does make the noise pulling that plug makes it stop and the engine runs quite normal. by the way the engine light has come on on the dashboard.

Volvo2002 · Apr 18th, 2012, 00:10

Quote:

Originally Posted by phantom51

No its on the opposite end of the block and it says in the manual that its the camshaft position sensor, I took out the one bolt that held it in position, withdrew it and gave it a clean but there were no moveable parts on it and so I put it back. The noise isnt there all the time - some days it doesnt do it at all - but when it does make the noise pulling that plug makes it stop and the engine runs quite normal. by the way the engine light has come on on the dashboard.

Oh right. Unfortunately that's beyond my knowledge. Hopefully a more experienced member can offer you advice.

phantom51 · Apr 18th, 2012, 00:11

Well thanks anyway - I appreciate your help.

Volvo2002 · Apr 18th, 2012, 00:14

Quote:

Originally Posted by phantom51

Well thanks anyway - I appreciate your help.

No problem

stewyp1983 · Apr 18th, 2012, 10:02

That light will need to be reset now as it has logged a fault from unplugging the sensor but if your lucky when driving it might register it as ok and clear it. If you take off the sensor (1 bolt) then undo the casing (2 hex screws) have a look inside to see if somehow there is something loose inside

phantom51 · Apr 18th, 2012, 18:14

Not been able to look at the car today it hasnt stopped raining all day and believe me its throwing it down!

Apr 17th, 2012, 23:44	#1
phantom51 New Member Last Online: Oct 22nd, 2012 17:50 Join Date: Apr 2012 Location: Rotherham	noise from camshaft position sensor? Hi, I have just acquired my daughters s40 sport (03 plate) it had a little Bump to the front but thats been sorted - It has just had an oil change, oil and air filters have been replaced and the car starts first time every time - but sometimes I get a "rattle" which sounds a bit like gravel being shaken about in a biscuit tin - if I unplug the camshaft position sensor the noise stops but whether its plugged in or not the engine runs just the same and doesnt appear to miss a beat. I havent taken it on the road yet but am about to take it for an m.o.t. any advise would be greatly appreciated. Have done a search but cant see the problem anywhere else.

Apr 17th, 2012, 23:57	#2
Volvo2002 Young Volvo driver Last Online: Nov 16th, 2021 22:54 Join Date: Aug 2011 Location: Scotland View Photos By: Volvo2002	Do you mean the solenoid? If you've disconnected that plug and the noise goes away, you're looking at a failed VVT pulley (Variable valve timing) 140 quid for the part and around 150-180 for labour. __________________ "In order to succeed, your desire for success should be greater than your fear of failure. – Bill Cosby"

Apr 18th, 2012, 00:03	#4
Volvo2002 Young Volvo driver Last Online: Nov 16th, 2021 22:54 Join Date: Aug 2011 Location: Scotland View Photos By: Volvo2002	Is it this? Forgive me if I'm way off. It's just that the VVT rattle usually disappears once you unplug that cable __________________ "In order to succeed, your desire for success should be greater than your fear of failure. – Bill Cosby"

Apr 18th, 2012, 10:02	#9
stewyp1983 Senior Member Last Online: May 2nd, 2013 11:56 Join Date: Aug 2009 Location: milton keynes	That light will need to be reset now as it has logged a fault from unplugging the sensor but if your lucky when driving it might register it as ok and clear it. If you take off the sensor (1 bolt) then undo the casing (2 hex screws) have a look inside to see if somehow there is something loose inside __________________ Top Banana

Apr 17th, 2012, 23:59	#3
phantom51 New Member Last Online: Oct 22nd, 2012 17:50 Join Date: Apr 2012 Location: Rotherham	its the plug on the end of the camshaft near the air filter unit - on the right of the engine as you look into the compartment

Apr 18th, 2012, 00:08	#5
phantom51 New Member Last Online: Oct 22nd, 2012 17:50 Join Date: Apr 2012 Location: Rotherham	No its on the opposite end of the block and it says in the manual that its the camshaft position sensor, I took out the one bolt that held it in position, withdrew it and gave it a clean but there were no moveable parts on it and so I put it back. The noise isnt there all the time - some days it doesnt do it at all - but when it does make the noise pulling that plug makes it stop and the engine runs quite normal. by the way the engine light has come on on the dashboard.

Apr 18th, 2012, 00:11	#7
phantom51 New Member Last Online: Oct 22nd, 2012 17:50 Join Date: Apr 2012 Location: Rotherham	Well thanks anyway - I appreciate your help.

Apr 18th, 2012, 18:14	#10
phantom51 New Member Last Online: Oct 22nd, 2012 17:50 Join Date: Apr 2012 Location: Rotherham	Not been able to look at the car today it hasnt stopped raining all day and believe me its throwing it down!

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