V70 T5 ETM

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Max M4X WW

Original Poster:

4,848 posts

188 months

Sunday 4th November 2012
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Hi Volvo Lot,

Not been in here for a while (since a mate had an 850 T5 for a few months, the orange one if you remember it)

Anyway, I've been using my OH's Dad's V70 this morning and he had warned me that it was 'hunting' and this seems to be related to the 'ETM'?

I think the car had a new one of these prior to purchase as the seller mentioned it and I remembered a receipt, but I thought this was a unit on/under the inlet as opposed to the actual throttle body itself?

Regardless, I read about DIY fixes involving cutting and soldering and software upgrades to prolong the life of the broken unit - is there a chance the one in the car was replaced but the software not updated?

Just trying to work out the options really, the car is a bit of a state now but I still find myself wanting it when he wants rid so want to try and get as much sorted as possible before I want to have it!

Thanks

morgrp

4,128 posts

204 months

Sunday 4th November 2012
quotequote all
What engine is it?

Max M4X WW

Original Poster:

4,848 posts

188 months

Sunday 4th November 2012
quotequote all
Apologies, Its a classic shape T5

Tunku

7,703 posts

234 months

Sunday 4th November 2012
quotequote all
The ETM that was affected was the 1999-2002 (ish) one made by Magneti Marelli. A contactless replacement TPS is the usual fix.

Max M4X WW

Original Poster:

4,848 posts

188 months

Sunday 4th November 2012
quotequote all
This is a 1999 car so I guess that's it, I thought it was easier to get to than it is! They seem to have put the throttle under the manifold.

I've found a place online that will re-build for £175 or the parts on ebay for £80.

Tunku

7,703 posts

234 months

Sunday 4th November 2012
quotequote all
Max M4X WW said:
This is a 1999 car so I guess that's it, I thought it was easier to get to than it is! They seem to have put the throttle under the manifold.

I've found a place online that will re-build for £175 or the parts on ebay for £80.
Yeah, the turbo one is buried. The N/a one is right in front of you, 4 bolts and its out!
There is a chap on Volvo UK who does it for £110. Spokoluzik is his name. Has his own website Volvodiagnostic.com.
Word of warning taking the ETM out. The cable is trapped behind the end bracket on the starter motor. Hard to see but easy to loosen to get the cable free. Don't be tempted to cut the cable.

Max M4X WW

Original Poster:

4,848 posts

188 months

Monday 5th November 2012
quotequote all
Thanks, Found this..

http://www.ebay.co.uk/itm/110963212726

Will have to have a look and see how difficult it is to remove I guess, don't have much free time to be messing around with other peoples cars!

Tunku

7,703 posts

234 months

Monday 5th November 2012
quotequote all
Max M4X WW said:
Thanks, Found this..

http://www.ebay.co.uk/itm/110963212726

Will have to have a look and see how difficult it is to remove I guess, don't have much free time to be messing around with other peoples cars!
That's the same chap. He is very good, I recommend him. There is a good description of manifold removal for this job on the net. It's not too bad. I'll see if I can find it.

Tunku

7,703 posts

234 months

Monday 5th November 2012
quotequote all

Max M4X WW

Original Poster:

4,848 posts

188 months

Monday 5th November 2012
quotequote all
Perfect, Thanks. Do you think it would come out without removing the inlet? Fiddly but only 4 bolts?

Tunku

7,703 posts

234 months

Monday 5th November 2012
quotequote all
Max M4X WW said:
Perfect, Thanks. Do you think it would come out without removing the inlet? Fiddly but only 4 bolts?
I've seen a suggestion that it will come out if the radiator fan is removed, but I've no actual experience.

richie99

1,118 posts

192 months

Wednesday 7th November 2012
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No need to remove the manifold, easier if you remove the fan assembly though. It's a bit fiddly but you can remove the ETM by reaching underneath and remove the 4 bolts by feel.

As already said, the cable is trapped behind the starter motor bracket but not too difficult to undo and release it. Took me more than an hour to remove mine the first time I did it to clean. Second time to replace the sensors took about half an hour to remove.

It could just be that it needs a clean if hunting is the only problem.

Max M4X WW

Original Poster:

4,848 posts

188 months

Wednesday 7th November 2012
quotequote all
How easy does the fan come out, I have visions of it being like my 540i fan but at least its electric I guess.

Need to get hold of a gasket before attempting this - what is the likelihood that cleaning will fix this?

richie99

1,118 posts

192 months

Wednesday 7th November 2012
quotequote all
My experience was that impending failure of the sensors was much more dramatic than just hunting. Mine was regularly going into limp home mode. About a year earlier, a clean had fixed a severe hunting problem - to the point it was stalling at idle. Got to be worth a try. Mine was an early P2 car but I don't think can be too different from yours.

Before you get into removing the fan, you'll have to remove the air intake pipe running to the air box, and the air pipe from the intercooler to the ETM. Removing the fan is not a hard job. Held in by a bolt in each in top corner and you'll need to release the electrical connections - you also need to cut some of the cable ties - I just worked through everything which was preventing it from being lifted out.

The ETM is held by 4 x 10mm (I think) bolts inserted from underneath - one in each corner. First time I used a new gasket, second time I didn't bother.

If you;re just cleaning it, you don't need to remove from the car so you don't need to release the cable from the starter motor.

HTH. If you need more info, worth searching on volvoforums.org.uk.

Max M4X WW

Original Poster:

4,848 posts

188 months

Wednesday 7th November 2012
quotequote all
Sounds great, I think I will tackle it at the weekend smile

Do you mean I wont need to remove it as there will be sufficient access for cleaning?

Thanks

morgrp

4,128 posts

204 months

Sunday 25th November 2012
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They can be cleaned but its is tricky without first removing the unit as you'll be doing effectively blind - cleaning them out usually cures the hunting issue - I use WD40 and some scotchbrite and brake cleaner - Haven't not been able to cure one yet

Max M4X WW

Original Poster:

4,848 posts

188 months

Sunday 25th November 2012
quotequote all
Thanks, I've not got round to looking at it yet but maybe next weekend!

richie99

1,118 posts

192 months

Wednesday 5th December 2012
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Sorry my earlier post wasn't too clear. You'll need to disconnect from the manifold for sure - almost impossible to do in situ. You could, however, leave the cable connected and clean it while still wired in. Disconnecting the cable requires undoing the starter motor bracket as the cable passes behind it. No big problem but just something else to do. I removed mine entirely to be able to give it a better clean.

gazza285

10,106 posts

214 months

Thursday 6th December 2012
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Mine was hunting and had the new ETM, after months of messing it was found to be a non return valve in one of the vacuum pipes that was flowing both ways, something else to check. It was the one on top of the bellhousing that had failed, little grey disc with unequal inlet and outlet pipes.


Also,
Why does the spell checker mark up an 1400 year old spelling of a colour?