my v40 revs by itself should I rename it christine ?

sadwhiteestate · Jul 31st, 2012, 10:17

Hi I'm new to this site and am wondering if anyone might be able to help with a problem I have with my v40 ?
It has started all of a sudden it will just rev up to about 3000 rpm and then sit revving .the throttle is not stuck open ! A man plugged it in and first said it was the cam sensor then said it was the mass air flow sensor but isn't sure either will cure the problem ! The other thing is it gets hot now ! Any thoughts weLcomed !!! Its a 1.6 v reg petrol that has done 97 k

SwedishVillain · Jul 31st, 2012, 10:25

Does the temperature gauge go up when it starts revving? If it does, do you turn it off and then try to restart it? If so, then it is the thermostat. I had it on my 1.6 V40 a few years ago where it just stuck closed and wouldn't open until the car cooled down which was a pain as I spent most of my day at the side of the road waiting to cool down every time it went

sadwhiteestate · Jul 31st, 2012, 10:49

Nope thermostats ok and if u turn it off it won't start for about ten minutes after

gatos · Jul 31st, 2012, 11:52

Try unplugging the MAF sensor and start the engine and let us know what happens

Also you might want to post in the right S40/V40 only section, where you will get many more responses. http://www.volvoforums.org.uk/forumdisplay.php?f=17

sadwhiteestate · Aug 2nd, 2012, 00:44

tried unplugging the maf kills the revs and just tigks over roughly ! sorry if im in the wrong section as i said im new on here thanks 4 the info

gatos · Aug 2nd, 2012, 10:21

I would expect the car to idle a bit rougher with the MAF disconnected, but did it drop to 800-1000? If yes we could be looking at a failed MAF.

Have you tried cleaning the ICV(idle control valve)?: http://www.volvoforums.org.uk/showthread.php?t=80435

I can ask the mods to move this thread to http://www.volvoforums.org.uk/forumdisplay.php?f=17 with your permission and you will get many more responses.

sadwhiteestate · Aug 3rd, 2012, 12:12

Have now taken a chance and changed the cam sensor all appears well at the mo so fingers crossed and thanks for your help !

gatos · Aug 3rd, 2012, 12:50

Cool. Lets hope it stays this way...

irishcarfan · Aug 3rd, 2012, 16:57

I know my brother had that problem in his 99 1.8 S40 and, in his case, it was the MAF. That was about 3 years and 30,000 miles ago

Jul 31st, 2012, 10:17	#1
sadwhiteestate New Member Last Online: Aug 3rd, 2012 12:12 Join Date: Jul 2012 Location: ongar	my v40 revs by itself should I rename it christine ? Hi I'm new to this site and am wondering if anyone might be able to help with a problem I have with my v40 ? It has started all of a sudden it will just rev up to about 3000 rpm and then sit revving .the throttle is not stuck open ! A man plugged it in and first said it was the cam sensor then said it was the mass air flow sensor but isn't sure either will cure the problem ! The other thing is it gets hot now ! Any thoughts weLcomed !!! Its a 1.6 v reg petrol that has done 97 k Last edited by sadwhiteestate; Jul 31st, 2012 at 10:42. Reason: add more detail

Jul 31st, 2012, 10:25	#2
SwedishVillain Volvoholic Last Online: Apr 20th, 2024 12:11 Join Date: May 2010 Location: Orkney	Does the temperature gauge go up when it starts revving? If it does, do you turn it off and then try to restart it? If so, then it is the thermostat. I had it on my 1.6 V40 a few years ago where it just stuck closed and wouldn't open until the car cooled down which was a pain as I spent most of my day at the side of the road waiting to cool down every time it went __________________ Current Car - 08' Volvo V50 2.0D Previous - 99' V40 1.6, 97' V40 2.0

Jul 31st, 2012, 11:52	#4
gatos Premier Member Last Online: Nov 15th, 2022 21:34 Join Date: Apr 2010 Location: London / Essex	Try unplugging the MAF sensor and start the engine and let us know what happens Also you might want to post in the right S40/V40 only section, where you will get many more responses. http://www.volvoforums.org.uk/forumdisplay.php?f=17 __________________ Current car: 2002 S40 1.9D, 1992 240SE Nullius in Verba

Aug 2nd, 2012, 10:21	#6
gatos Premier Member Last Online: Nov 15th, 2022 21:34 Join Date: Apr 2010 Location: London / Essex	I would expect the car to idle a bit rougher with the MAF disconnected, but did it drop to 800-1000? If yes we could be looking at a failed MAF. Have you tried cleaning the ICV(idle control valve)?: http://www.volvoforums.org.uk/showthread.php?t=80435 I can ask the mods to move this thread to http://www.volvoforums.org.uk/forumdisplay.php?f=17 with your permission and you will get many more responses. __________________ Current car: 2002 S40 1.9D, 1992 240SE Nullius in Verba

Aug 3rd, 2012, 12:50	#8
gatos Premier Member Last Online: Nov 15th, 2022 21:34 Join Date: Apr 2010 Location: London / Essex	Cool. Lets hope it stays this way... __________________ Current car: 2002 S40 1.9D, 1992 240SE Nullius in Verba

Jul 31st, 2012, 10:49	#3
sadwhiteestate New Member Last Online: Aug 3rd, 2012 12:12 Join Date: Jul 2012 Location: ongar	Nope thermostats ok and if u turn it off it won't start for about ten minutes after

Aug 2nd, 2012, 00:44	#5
sadwhiteestate New Member Last Online: Aug 3rd, 2012 12:12 Join Date: Jul 2012 Location: ongar	tried unplugging the maf kills the revs and just tigks over roughly ! sorry if im in the wrong section as i said im new on here thanks 4 the info

Aug 3rd, 2012, 12:12	#7
sadwhiteestate New Member Last Online: Aug 3rd, 2012 12:12 Join Date: Jul 2012 Location: ongar	Have now taken a chance and changed the cam sensor all appears well at the mo so fingers crossed and thanks for your help !

Aug 3rd, 2012, 16:57	#9
irishcarfan Master Member Last Online: Jun 4th, 2024 02:29 Join Date: Jul 2009 Location: Dublin	I know my brother had that problem in his 99 1.8 S40 and, in his case, it was the MAF. That was about 3 years and 30,000 miles ago

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)