Volvo 480 Club Europe

After a 3 weeks search with problems cold start idle I came across this topic, changed the valve and everything okay again Cheers to this Forum

This is the one btw

dutmanjf wrote:After a 3 weeks search with problems cold start idle I came across this topic, changed the valve and everything okay again Cheers to this Forum

Brilliant! It's so good starting your car up and it finally running properly isn't it....I am glad the thread helped you

Nice one putting up a picture also, I should have done that

Happy 480ing and cold starting

Sorry if this isn't the right place to post this, but I've recently been having cold start idle problems and I guessed that the posters here know a lot more about it than me. However, this discussion might be a bit more advanced than I need, so I was wondering if someone could tell me which things to check first.

Background: I've only had a 480 for a couple of months so don't know my way around mine very well yet. The car 'judders' when idling from cold and needs some extra revs just to stop it stalling until it warms up a bit. The idling when warm seems okay, although the revs do seem to rise and fall a little (but I may be listening a bit _too_ hard?!).

Any advice on some basic checks (and the order I should do them) would be much appreciated.

Thanks,

Patrick

Open a new topic, or do the search i guess..

whitepk wrote:Sorry if this isn't the right place to post this, but I've recently been having cold start idle problems and I guessed that the posters here know a lot more about it than me. However, this discussion might be a bit more advanced than I need, so I was wondering if someone could tell me which things to check first.

Background: I've only had a 480 for a couple of months so don't know my way around mine very well yet. The car 'judders' when idling from cold and needs some extra revs just to stop it stalling until it warms up a bit. The idling when warm seems okay, although the revs do seem to rise and fall a little (but I may be listening a bit _too_ hard?!).

Any advice on some basic checks (and the order I should do them) would be much appreciated.

Thanks,

Patrick

Hi Patrick.

I'm no expert, but if it only does it from cold then I'd suggest replacing the part talked about earlier in this post.

Thanks Rachel. I'll try this. Could you give me an idea of where to look for this part. I've had a scout around and can't seem to locate it. Many thanks, Patrick.

Volvo fitted this part after the facelift in 1991, so from chassisnr. 567000 you can find it. Older models have a different system.

Mines a 94, but I don't know where to start looking for it. Any clues?

whitepk wrote:Mines a 94, but I don't know where to start looking for it. Any clues?

It connected to the idle control valve, and goes around the right hand side of engine (as you look at it from the front)


Here it is connected to idle control valve, and the next picture shows where it goes round the side.


HTH

You have to look under the bonnet

Thanks Rachel!

If I'm looking at the right thing, mine seems to be very different. This might explain why I couldn't find it. It looks very small in comparison. Is it still the right component to change? My 1994 2.0 ES is an auto - does this make any difference? Sorry to be such a clueless newbie! Thanks again for all your help.

That does look different. Mine is on a turbo so maybe they are different. At least you've found it! Does the rest look similar? Does it have a part number on it?

Hi Everyone,

I'm having trouble with starting my 94 480 ES Auto from cold. The car 'judders' when idling from cold and needs some extra revs just to stop it stalling until it warms up a bit. The idling when warm seems okay, although the revs do seem to rise and fall a little. I've only had the car a couple of months so don't know my way around it very well. I've done a search on this problem and found a relevant thread but it hasn't answered all my questions. Rachel has been very helpful, though.

Most of the members who have had similar trouble have ended up solving it by replacing the oil separator valve. However, pictures of this component that have been posted look very different to mine. Theirs looked like this: http://www.volvo-480-europe.org/forum/v ... le#p196920 when on the car and this: http://www.volvo-480-europe.org/forum/v ... 45#p197464 when removed. Mine, however, looks like this: . Rachel's 480 is a turbo, and she thought this might explain the difference.

Is it still worth me changing this component or are there any other more basic checks I could do? Any help would be much appreciated.

Many thanks,

Patrick

The idle control valve on a turbo and a 2ltr 480 are different. Take comparable 94 and 95 cars.......

this is the turbo one

and this is the 2 ltr one.



hope this clarifies things for you.

Thanks Jim. Much appreciated.

Hi there,
To anyone who fixed the problem by replacing this valve can someone confirm if the revs gradually rise from cold start until normal operating temperature? Or does the engine jumps to normal?
Mine start's at aprox. 200RPM but keeps rising to 850 @80ºc.
I also found out that when I was adjusting the idle (also at 80ºc), when i connected the two wires that disable the ICV, I did not notice the revs dropping. The ICV is ok which leads me to think that it is the valve pointed in this thread that is not letting more air though.
what i can't understand is why the RPMs gradually rise. Does the valve open with the heat?
Thanks for your help.

The ICV ok? Why the rev's not dropping when you ground him?

gsa60 wrote:Hi there,
To anyone who fixed the problem by replacing this valve can someone confirm if the revs gradually rise from cold start until normal operating temperature? Or does the engine jumps to normal?
Mine start's at aprox. 200RPM but keeps rising to 850 @80ºc.
I also found out that when I was adjusting the idle (also at 80ºc), when i connected the two wires that disable the ICV, I did not notice the revs dropping. The ICV is ok which leads me to think that it is the valve pointed in this thread that is not letting more air though.
what i can't understand is why the RPMs gradually rise. Does the valve open with the heat?
Thanks for your help.

Just to confirm, no the revs shouldn't gradually rise. Once I fixed this problem they were spot on.