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Author Topic: revs up and down  (Read 1150 times)

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duxy

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revs up and down
« on: 09 January 2012, 09:43:49 »
hi everybody i'm new to oof, had 3.0ltr elite estate since 2001  cost lots to repair but i just love the car.but its starting to get too old to spend on garage repairs.
got a problem now, while driving revs started to go up and down last week & saturday the car would not start atall , !st time ever . .
any ideas?
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ScaniaV8

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Re: revs up and down
« Reply #1 on: 09 January 2012, 10:09:43 »
 I suggest your first action is to do the Paperclip test. (see Maintenace Guides section) and then post the codes shown onto the Forum for evaluation. A list of codes and expalanations can also be found in the Maintenace guide section.

If code 19 appears then this will indicate Crankshaft sensor problem and probable replacement necessary, but do the codes test first.

Good luck.
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duxy

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Re: revs up and down
« Reply #2 on: 09 January 2012, 10:43:09 »
cheers ScaniaV8
will try that & let u know
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duxy

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Re: revs up and down
« Reply #3 on: 09 January 2012, 14:09:09 »
tried paper clip test, comes up with 31
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amba

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Re: revs up and down
« Reply #4 on: 09 January 2012, 14:27:42 »
Code 31 tends to almost always appear if you don,t have the car running when you flash up the codes,so try it running and see if it still brings 31 up. :y
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duxy

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Re: revs up and down
« Reply #5 on: 09 January 2012, 15:04:39 »
hi amba, cant get car started since saturday
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amba

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Re: revs up and down
« Reply #6 on: 09 January 2012, 15:12:02 »
Code 31 indicates rpm signal,so will always appear when engine not running and you flash up code.

If it turns over but will not fire worth checking for any oil contamination ontop of plugs.Pull each lead off and check for any oil,but sounds like the crank sensor could be your problem .
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duxy

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Re: revs up and down
« Reply #7 on: 09 January 2012, 17:54:23 »
 :y  good advise everyone crank sensor was naff running sweet as a nut again :)
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Webby the Bear

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Re: revs up and down
« Reply #8 on: 09 January 2012, 18:07:27 »
Worth cleaning throttle body and ICV too, guys?  :-\
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ScaniaV8

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Re: revs up and down
« Reply #9 on: 10 January 2012, 07:55:31 »
Just hope you fitted a genuine VX Crankshaft sensor as after market replacements are notorious for early life failures!! Genuine VX part with a Trade Card approx £65.00

Good luck...hope the car is now reliable again for long term. 
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duxy

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Re: revs up and down
« Reply #10 on: 10 January 2012, 08:14:03 »
new part same as old bosch  £67.00 easy to fit too. v/x part £104,  lucky there :)
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cem_devecioglu

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Re: revs up and down
« Reply #11 on: 10 January 2012, 12:54:20 »

check the front solenoid under the intake behind the radiator..

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