#1: Car Revving Author: 97browng, Location: CardiffPosted: Mon Dec 17, 2012 5:51 am ---- Hi All,
I have an issue with my car (206 2000 W Reg 1.1) that when I push the accelerator for some power the car revs really high but puts very little power into the car itself.
I did ask about this a while ago and I think it may be the clutch. However the car passed its MOT recently but only just as it was high on the CO2 emissions. So I was wondering if the issue might have something to do with the injection system rather than only the clutch.
I have a video which I have put on youtube and you can see what happens. All I have done is push the accelerator in slightly (not all the way in) and you can see the rev go up a load and then back down without any real increase in speed. It seems to do this on all gears (perhaps not 1st) and it seems to be getting worse.
So can you experts please take a look at the video on the below and let me know what you think it is and what the cost would be.
The car has also cut out 3 times for no reason, I am driving and then I notice it has cut out. Each time it has done this it has been during cold weather and at the start of a journey (often when turning). It has had the coil and spark plugs replaced recently due to another fault. So I dont know if this is related or not.
Anyway any help as always is very much appreciated.
Thanks
Gary
#2: Re: Car Revving Author: Tolkienfan001, Location: SpaldingPosted: Mon Dec 17, 2012 6:17 am ---- I would say clutch still! Might have other issues as well. Last edited by Tolkienfan001 on Mon Dec 17, 2012 6:18 am; edited 1 time in total
#3: Re: Car Revving Author: Quarmbo, Location: Bristol & LeicesterPosted: Mon Dec 17, 2012 9:50 am ---- Cutting out may be coolant temp sensor. Very cheap part to replace. With regards to the revving, are you resting your foot on the clutch when you drive?
#4: Re: Car Revving Author: oldskoolz, Location: LondonPosted: Mon Dec 17, 2012 10:11 am ---- idle control valve, clean it or get it changed, had the same problem on my old 1.4
#5: Re: Car Revving Author: 97browng, Location: CardiffPosted: Mon Dec 17, 2012 10:42 am ---- Thanks for the replies gents.
Firstly is the idle control valve the cause of cutting out or revving? If the cutting out then fine if the revving then that throws a spanner in the works.
Also does anyone know where I can get these parts from (ICV and Temp Sensor) as cheap as possible. I don't mind fitting these myself if it is an easy job.
I have had a quote for the clutch and he said it would be £165 including parts, labour and VAT which seems a good price.
No I don't rest my foot on the clutch when I drive but my wife also uses the car if you think she may have done something.
#6: Re: Car Revving Author: Walton450, Location: LeicesterPosted: Mon Dec 17, 2012 11:28 am ---- i lost power to my car last weekend was just driving then the car just seemed to lose its get up and go, then about 10 mins later i just went. turns out it slipped a tooth on the can belt before it snapped.
#7: Re: Car Revving Author: bezford, Location: darlingtonPosted: Mon Dec 17, 2012 4:09 pm ---- The high revs with no speed increase is almost defo the clutch plate or thrust bearing...defo something to do with clutch as the engines producing the power its just not getting delivered to the wheels so clutch is faulty
As for cutting out its choked up or maybe low battery power(a better battery may be needed)or idle control valve or temp srnsor as people have said however if u take car fora really good thrashing for15-20mins/miles this may fix the trouble as cars are used for too many short journeys these days and it upsets them..choking them up and the best cure for this is a really good thrash at a good high rev level for a prolonged period
. So if u dont want to go too fast but still need the thrashing/blowout rev high in 4th or3rd but for a good legnth of time...mine just started doing it so had a blowout and that problem is gone but i still need a better battery because its old and weak but the tick over problem is sorted by the blast out...
#8: Re: Car Revving Author: 97browng, Location: CardiffPosted: Mon Dec 17, 2012 4:42 pm ---- Thanks for the replies all of you.
bezford I am glad to here you say it is def the clutch causing the revving issue so I will get that done this week (I have booked it in for Thursday). As I said the guy said it would be £65/£85 (depending on which make I want) for parts and £100 for labour which from what others have told me is not a bad price at all.
The cutting out does not happen often at all so it is something I can look at after xmas but I have taken the car for a good ride (over 600 miles in total) and it has happened since then. The battery should be fine as it is relatively new and in good shape so I think it must be one of the sensors. I see euro car parts sell both of them and the coolant temp price seems reasonable but the idle control valve is £60 while I can see ebay have them for £20 or under.
If anyone could point me to the exact parts I need for a good price it would be appreciated. Also any videos for changing the parts would also be appreciated as I am still a bit of a car novice.
Thanks Again
Gary
#9: Re: Car Revving Author: Quarmbo, Location: Bristol & LeicesterPosted: Tue Dec 18, 2012 5:19 am ---- Search idle control valve on here - you don't necessarily need a new one, it may just need cleaning. There is a how to somewhere on here.
#10: Re: Car Revving Author: 97browng, Location: CardiffPosted: Thu Dec 20, 2012 11:09 am ---- Hi All,
So I thought I would update you on the situation (I know how annoying it is to read a forum and not know what fixed the problem). I have had the clutch replaced and so far so good (I will need to give it a proper test on the weekend).
Also when replacing the clutch the guy noticed that there was a leak coming from the water hose on the thermostat housing (landing on the gearbox). I saw it myself and indeed it had rusted through. He sorted it quite easily (he lengthened the pipe) for only £15. I am guessing this could have been causing some of my other issues but again I wont know until I have tested it. Does anyone here think this could be the cause of the cutting out issue?
#11: Re: Car Revving Author: bezford, Location: darlingtonPosted: Fri Dec 21, 2012 10:11 am ---- If its upset the temprature reading abilitys of the sensor it could be thrown off enuf for causing problems but not really a stall causing fault...its almost defo the idle control valve...try cleaning it and the connections or get a scrappeer semi new one...sorted...
#12: Re: Car Revving Author: LORDPSK, Location: CAERNARFONPosted: Sun Dec 23, 2012 5:50 pm ---- Have you tried resetting the idle stepper motor, put drivers window down, disconnect battery (make sure you have radio code) leave for 10 minutes, reconnect battery, lean through drives window and turn on side lights to soft start bsi unit, leave 30 seconds, turn ignition on till warning light come on, wait 15 seconds and then start car, car should idle normal.
#13: Re: Car Revving Author: bezford, Location: darlingtonPosted: Mon Dec 24, 2012 6:40 am ---- Im not sure about the idle stepper motor but what youve described above is the bsi soft teboot procedure that will reset faults in the multiplexed system but as for resetting idle i dont know about that like...
#14: Re: Car Revving Author: 97browng, Location: CardiffPosted: Mon Jan 07, 2013 6:31 am ---- Hi all,
Sorry for the long delay. Ok the revving issue (in the video) has gone so it was the clutch. However it is still cutting out. I have not cleaned the ICV yet (I will shortly) but before I do it I have some more information on the fault.
It seems that when I put the clutch down/am in neutral (especially if I am going quick and have to break suddenly) the revs drop very rapidly to about 500 and then go back to the normal idle of 1000. Most of the time when it drops the car continues but is on the brink of cutting out, however sometimes it will drop and cut out.
It does not do it all the time but I would say about 40% of journeys. It also does not seem to matter if the car is hot or not because sometime it happens at the start and the other day it happened after a 3 hour motorway journey.
Most of the time when I get the issue it happens for the complete journey and does not simply stop. A couple of days ago it was happening when I stared the car and the revs would go to straight zero and cut out. It did this for a few minutes and was then fine.
I will clean the ICV but I just want to be as certain as possibly that is the issue before I do work and then replace the part if cleaning does not work. Is there any way I can test the ICV or is cleaning/replacing the only option?
I have had the ignition coil replaced and spark plugs replaced recently so I do not think it is either of those.
Thanks
Gary
#15: Re: Car Revving Author: bezford, Location: darlingtonPosted: Mon Jan 07, 2013 7:19 am ---- Mines just started with the same thing so ive adjusted the accelerator/throttle cable where it passes thru the plastic cover secured by the metal clip arrangement...the right place for adjustment actualy...so bonnet up car running and hold cable and ease clip off...then pulling cable up from plastuc cover gentley will increase engine speed/revs so find that sweetspot that is just above where it was originaly...but not too high were its over revving on tickover/idleing...it may take a bit of fiddling but mine went back with pin position in apparently the same place but must have been a fraction lower as its sorted the rev drop off totaly..
If u cant get the adjustment right simply tear a 2 inch square of thinnish card...tear a hole in the centre about a third of an inch round and tear a straight line from centre hole to edge...then simply slide clipped cable up slightly(THIS SHOULD BE CLIPPED AS CLOSE TO NORMAL IDLE AS POSSIBLE OR JUST UNDER GOOD IDLE SO THE CARD WILL LIFT IT TO PERFECT SPOT)and slide the card into place under the metal pin with the cable through the central hole in the card...
This should give a slight luft/rise in revs...if its not quite enuf add a second card on top of the first(MADE THE SAME AS FURST)...
If this helps anyone pleez let me know...cheers.
#16: Re: Car Revving Author: kandlbarrett, Location: SwindonPosted: Mon Jan 07, 2013 7:42 am ---- I thought that tick over on these was controlled by the ICV. I don't think that doing it by adjusting the throttle cable is the correct method.
It may work; good luck if it does, but I am not sure what other problems with fuel metering etc. this may cause. Possible incorrect fuelling at idle and MOT emissions failure.
If you are lucky the MAF and MAP will "see" the correct air mass, correct the mixture and give correct emissions.
Doing it this way you may as well disconnect the ICV circuit and set idle by adjusting the throttle although that would, even if it works without creating an MOT emissions failure, slightly increase fuel consumption. Last edited by kandlbarrett on Mon Jan 07, 2013 6:51 pm; edited 1 time in total
#17: Re: Car Revving Author: bezford, Location: darlingtonPosted: Mon Jan 07, 2013 10:00 am ---- So why else does the cable have an adjustment feature???
#18: Re: Car Revving Author: kandlbarrett, Location: SwindonPosted: Mon Jan 07, 2013 11:16 am ---- I assume (don't know for fact) for any or all of the following reasons:-
1) To take out excess slack. A few millimetres of slack is OK but a few centimetres may not be.
2) To make sure when the pedal is on the floor it isn't trying to turn the actual throttle beyond 90 degrees.
3) To set the throttle pedal at the correct height.
#19: Re: Car Revving Author: NayNay1991x, Location: LeicesterPosted: Mon Jan 07, 2013 4:58 pm ----
Tolkienfan001 wrote:
I would say clutch still! Might have other issues as well.
Remember when I posted this Tolkien about my clutch..
Anyhow if there's no increase in power and your revs just build then your clutch is on its way out dont keep revving high your flywheel will be getting damaged. Thats if its slipping mine was doing it a while ago had to get a new clutch kit fitted.
One way to test is put the handbrake on hold your clutch down put it in 3rd with a little bit of gas slowly bring clutch out if it stalls its okay if it engages then yeah it is the clutch
#20: Re: Car Revving Author: kandlbarrett, Location: SwindonPosted: Mon Jan 07, 2013 5:09 pm ---- NayNay1991x: read the thread a new clutch has been fitted and cured that problem.
97browng: having re-read your problem I do suspect ICV is the cause of your poor idling and occasional cutting out problem. It is being sluggish to respond to the increased load on the engine. Yes just pushing the clutch pedal puts a slight additional load on it.
I do have another though but will leave that until after you have cleaned ICV / stepper motor.
#21: Re: Car Revving Author: bezford, Location: darlingtonPosted: Mon Jan 07, 2013 7:23 pm ---- Just add the card cut outs...we need to work with facts not...im not sures etc.if this was a brand new bentley i wouldnt do it but it will not hurt the car in any noticeable way and any petrol increase would be so so so little its imeasurable...
Its short sharp runs and drives down to the shop that cause these problems...especialy with the larger 2.0litre models...they werent designed to run for a minute hear and there...
They need a good run out quite often to get everything working right ...give the bsi time to find its settings...clear out any unburnt fuel/oil on the spark plugs and stop them being choked up from overfueling on these short journeys.
#22: Re: Car Revving Author: Mattie-RS, Location: A Track near you ;)Posted: Tue Jan 08, 2013 9:59 am ----
bezford wrote:
Just add the card cut outs...we need to work with facts not...im not sures etc.if this was a brand new bentley i wouldnt do it but it will not hurt the car in any noticeable way and any petrol increase would be so so so little its imeasurable...
Its short sharp runs and drives down to the shop that cause these problems...especialy with the larger 2.0litre models...they werent designed to run for a minute hear and there...
They need a good run out quite often to get everything working right ...give the bsi time to find its settings...clear out any unburnt fuel/oil on the spark plugs and stop them being choked up from overfueling on these short journeys.
Yes we need facts, best you dont post then eh
Check and clean the ICV and report back!
#23: Re: Car Revving Author: 97browng, Location: CardiffPosted: Tue Mar 05, 2013 6:19 am ---- Sorry for the very late reply. Just to let you know it was the ICV. Took it to the garage who cleaned it all for me and it is now working fine without any issues. I think it will need to be replaced in the near future but all well now.
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had to get a new clutch kit fitted.
