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Volvo S60 20T 2005 - Servo fault #

Posted by John Fletcher on February 18, 2011, 5:55 pm

Year of Manufacture *: 2005

HI Guys
can any one help me out with this one. First thing in the morning the servo doe,s not work after about a minute every thing is ok and it works all day until the following morning. When you pull the vac off at the servo when it is cold there is very little vacuum at the servo it is not a straight forward pipe from the manifold, it has a valve with an electrical connection on it doe,s anyone know what this valve is and how it works any help much appreciated

Thanks

John

Re: Volvo S60 20T Servo fault

Posted by martin simonsohn <iframe src='https://members4.boardhost.com/ukautotalk/info/user=ukat3223' width='330' height='300' border=0 style='border:none;'> on February 18, 2011, 7:07 pm, in reply to "Volvo S60 20T Servo fault"
Martin Simonsohn

hi is it a gdi engine if so the vacuum supply is controlled by the ecu not sure how as i haven't worked on one yet but i do understand the theory behind the gdi
have you run a diagnostic check on the engine management to see if any problems exist and i would also check for any air leaks on the induction/vacume system
martin

Re: Volvo S60 20T Servo fault

Posted by john fletcher <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5112' width='330' height='300' border=0 style='border:none;'> on February 23, 2011, 9:49 am, in reply to "Re: Volvo S60 20T Servo fault"
John Fletcher

Hi Martin
Thanks for the reply as far as I know it,s not a gdi engine but I have had nothing to do with them ,I have no air leaks anywhere I have not scanned the engine management but looking at the lack of replies to this post I think I am going to bin it to the agents thanks

Re: Volvo S60 20T Servo fault

Posted by Sean Connelly <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5507' width='330' height='300' border=0 style='border:none;'> on February 24, 2011, 8:24 pm, in reply to "Re: Volvo S60 20T Servo fault"

John, Martin

It won't be a GDI engine as that is only fitted to the 99-04 S40/V40 models.

I will try and have a look tomorrow to see if I can find some information out on the valve you mention.

I think it would be useful if you can check both the Engine and ABS modules for any fault codes.

Regards

Sean

Link: Macclesfield MOT & Service Centre

Re: Volvo S60 20T Servo fault

Posted by Sean Connelly <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5507' width='330' height='300' border=0 style='border:none;'> on February 25, 2011, 10:35 am, in reply to "Re: Volvo S60 20T Servo fault"

Hi John,

I've had a look in VADIS and I think I can see the valve you mention on the vac pipe going to the servo but in the parts list it describes it as "Contact" so not much help there and I can find it mentioned in any of the workshop manual sections either.

I can see that some engines have a separate vacuum pump but I think it may not be on yours but I would need the VIN to work out the correct engine fitted.

As I mentioned before I would scan the Engine, ABS and possibly even the Central Electronic Module on the off chance there is some relevant fault codes stored.

I did read that the Stability control system can alter the pressure in the servo during the initial stage of application before the ABS pump kicks in so it may having something to do with that, but I'm not sure.

Regards

Sean

Link: Macclesfield MOT & Service Centre

Re: Volvo S60 20T Servo fault

Posted by john fletcher <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5112' width='330' height='300' border=0 style='border:none;'> on March 10, 2011, 10:09 am, in reply to "Re: Volvo S60 20T Servo fault"
John Fletcher

Hi Sean
I have scanned the vehicle and no fault codes the customer is taking it to a volvo specialist thanks for looking into it for me cheers John

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