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Home > Help Needed / General Tech Chat > O/T Volvo V70 T5 - idle issues

stefaz

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stoke-on-trent

8th May, 2008 at 10:36:48pm

My dad has just bought one and it just will not idle right, it keeps revving and cant keep a constant engine speed. My first thought was idle control valve and it will be having a full service v soon - is there anything else I need to look for?

On 23rd Oct, 2009 sim_ou_nao said:
eu gosto de mamas = i like boobs

Bat

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Bermingum

9th May, 2008 at 04:09:51pm

Hi,
Has it got an idle speed control valve?
Could be an air leak...
Cheers,
Gavin :)

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stefaz

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stoke-on-trent

9th May, 2008 at 04:39:38pm

not had time to have a proper look yet - think its gonna go up the road to my mate and plug it on the diagnostic though since the diff on my daily drive has died so thats gotta be fixed first

On 23rd Oct, 2009 sim_ou_nao said:
eu gosto de mamas = i like boobs

Richie

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a LIL fishing village on the coast - Newcastle Upon Tyne

11th May, 2008 at 10:00:47am

it is most definately a leak on the vacume pipes, they crumble with age, check em all it will be the one at the front buddy, had to do mine when i had it :) the T5 should tick over 900 rpm when warm



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On 17th Aug, 2009 Jay#2 said:
I doubt I'll be dipping into the 13's like you did though!

joeybaby83

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Isle of Man

11th May, 2008 at 11:18:03am

if its the same 20v engine as the 850 T5 has, have a look at the very left hand end of the plenum, theres a pipe that runs from this nipple, all the way under the manifold to the right side of the engine bay and back to the pcb valve, these are reknowned for failing

as are all the pipes attached to the vac tree next to the throttle assembly on the right hand side of the plenum

and as richie says, do you self a favour and replace ALL the vacuum pipe with silicone, they will all more than likely be perished.

heres my post on a volvo forum, handy for diagrams etc

http://www.vpcuk.org/forums/showthread.php?t=27912

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Richie

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a LIL fishing village on the coast - Newcastle Upon Tyne

11th May, 2008 at 04:32:19pm

infact i would not be surprised if ure lambda light comes on (orange with green box and a y symbol)



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On 17th Aug, 2009 Jay#2 said:
I doubt I'll be dipping into the 13's like you did though!

stefaz

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stoke-on-trent

11th May, 2008 at 05:48:49pm

cheers guys - will have a gander as soon as i get chance

On 23rd Oct, 2009 sim_ou_nao said:
eu gosto de mamas = i like boobs
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