Question about 2001 Volvo S80

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M y 2001 s80 with 2.9 ltr eng. has 130000mls when the car is first started or in gear at traffic light the idle will fluctuate and it sound like the engine will stall.the engine has new bosch platinum plus 2 plugs .any ideas will be appreciated

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Hi,

This is a common problem and a technical bulletin is already there for the same :-

Electronic Throttle Module - Uneven Idle

S70/V70 1999-2000/C70 1999- S80 1999-/V70/S60 2001-Section2 Group25
No. 0023 Year01 Month07

Reference:
Vehicles involved: All equipped with Electronic Throttle Module

Electronic Throttle Module (ETM), Cleaning

Background:

Carbon deposits can form in the throttle module bore on cars frequently driven short distances. This residue can cause idle speed to become uneven and noticeable to the driver especially with the increased load produced by the air conditioning compressor cycling on and off. This Service Bulletin describes how to clean the throttle module bore.

Materials:
Description Quantity Part no. Cleaner H 1 XXXXXXX



Electronic Throttle Module (ETM), Cleaning

1 Preparations

Removing and installing the throttle unit see VADIS:

Replacement and installation

Function group 25

"Replace the throttle unit".

2 Cleaning the ETM

Warning! Use a fume hood or ensure that ventilation is good. DO NOT submerge throttle unit in cleaning solvent. ONLY use cleaning solvent recommended in this bulletin.

Caution! Do not scrape or use a rotary wire brush to clean the unit.

Clean the ETM bore using cleaner H (P/N XXXXXXX-9) and a soft bristle brush.


Ensure that all the residue is removed from the shaded surfaces.

Carefully wipe the bore clean on both sides of the throttle plate.

Flush the ETM bore using cleaner H on both sides of the throttle plate.

Check that there is no residue in the bore or on the throttle plate. Any remaining residue can promote new residue build up.

Repeat the procedure if necessary.

Install the throttle body

It's hard to say how complicated it would be for a "do it yourselfer", but the labor is about 2 hours, (which would be $150 here, east coast of the US) with an average labor rate of $75 per hour.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Nov 13, 2010

  • brad hoch Nov 25, 2011

    if you your vechicle has less than 200k miles and is less than ten years old then you can take it to a certifed Volvo dealership and ask them to repair, update software, replace ETM and throttle body under their 6-2005 "warranty" agreement (not a recall, you must call and ask)...If not the cleaning doesn't work then I suggest sending the throttle body to XeMODeX Technologies in Canada, 1-888-712-2525. you can google "vexed volvo" on internet to find out more.

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