Hi Everyone,
I am new to the forum and want to thank all of you guys for contributing to such a wonderfull site.It really is a gr8 help to a guy like me who here in South Africa lacks the aftermarket parts and accessories to help keep these gr8 cars alive.I have to buy very expensive Volvo original parts here and the labour rates are very expensive.
The reason I have responded on this thread is that I am trying to cure my 1994 850 T5 from an Idling problem. The car was serviced recently , but was merely oil, plugs filter etc.
If I rev it ,it seems to be normal but wont idle and usually stalls whilst driving.I have read similar threads and they all seem to mention Idle Control Valve,PCV system and vacuum lines, throttle body.
I have only tried cleaning the ICV and that seems to be functioning ok, can someone give me the resistance readings to check this and maybe the othere sensors correctly?
I dont have a repair manual at the moment but def see the sense in getting one soon.
I would appreciate if someone could also point me in the direction of a diagram showing the pcv and vacuum system that I should check for thispoor idling and stalling problem.
Hope someone can help b4 I pull all my hair out!

 

Make sure all the induction and intercooler hoses are good.
Make sure they don't have holes in them.

Sounds like a bad vaccum leak or something like that.

 

I'm not sure what instrument panel they have on South African cars but my guess it is like the European versions that have the Lambda light rather than the Check Engine light. Is your Lambda light on? If so, you need to check the codes from your underhood diagnostic boxes (Port A-2) and post them back.

You can download a factory service manual here for free:

http://www.matthewsvolvosite.com/dow.../Volvo_850.zip

...Lee

 

make sure they didnt break an ignition wire when they changed the plugs.

 

I wanted to keep you from pulling your last hair out.

General tune-up thread:
https://volvoforums.com/m_48928/tm.htm


JPN

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Vacuum diagram. Sorry the 1st page is kind of blurred.


JPN

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There are a few different PCV components on the 850s; you would have to specify the model year, turbo/non-turbo, VIN#, engine ID, etc...


JPN

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