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850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
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Revs not droppingViews : 341 Replies : 1Users Viewing This Thread : |
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Oct 18th, 2018, 23:02 | #1 |
and Craig!
Last Online: Apr 1st, 2024 06:25
Join Date: Jun 2007
Location: Manchester
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Revs not dropping
Hi,
when the engine is up to tempreture,and when changing gear the revs increase, engine has had new vac lines but was doing this before, any advice much appreciated. Craig.
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Michelle and Craig. 855 R 855 T-5 |
Oct 19th, 2018, 07:18 | #2 |
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Last Online: Feb 15th, 2020 22:33
Join Date: Sep 2017
Location: Chelmsford
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I think this is usually caused by a faulty idle control valve. Could try cleaning it, although in my experience that only rectifys the problem for a month or so.
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