Uneven revs and cutting out

**Pliskin** · Friday 22nd August 2014, 11:55

Hi,

Can anyone shed any light as to what this might be.......

I have got a 2000 V70 2.4 petrol auto which when I start it up from cold or warm will quite often fire up normally and than cut out unless I purposely keep the revs up.

Also when I am slowing down to stop, either in traffic or when parking the revs will drop to almost nothing and just before it stalls it recovers and goes back to normal.

Unfortunately on a number of occasions it does stall, which isn't best ever.

Any suggestions ladies and gentlemen?

Regards to all.

**stribo** · Friday 22nd August 2014, 13:16

Sounds like ETM issues, it may just need a clean.

**Pliskin** · Wednesday 3rd September 2014, 13:51

The car is going in tomorrow to hopefully sort this stalling out, which is beginning to get worse.

If the cleaning recommended by Stribo doesn't sort it and the ETM has anyone had any experience of the contactless ones from the States listed on the bay:
http://www.ebay.co.uk/itm/2909162233...3AIT#vi-ilComp

Regards to all

**Pliskin** · Sunday 7th December 2014, 13:38

Bit of an update, I had the ETM looked at and it was given a clean, after which it seemed to improve. Unfortunately the problem resurfaced and very nearly got me killed after the engine stalled just as I was turning across on-coming traffic, which included a huge truck carrying rock from the Derbyshire quarries.

I sent the ETM off to Volvo Diagnostics and he fitted the contactless system but the problem still won't go away.

Anyone got any suggestions as I can't use the car as it isn't safe to drive.

Regards to all

**Dream3r** · Sunday 7th December 2014, 14:01

Check he injectors, maybe they're spaying unevenly.

**Pliskin** · Sunday 7th December 2014, 18:04

Cheers mate, I will give it a whirl, if you pardon the pum

**Pliskin** · Sunday 7th December 2014, 18:04

Pum, whtf is pum?

**nosh** · Sunday 7th December 2014, 22:50

as its an auto take to a transmission company & get it read for gearbox faults .. could be your torque converter or a seal gone

its just a thought as i know 1 or 2 geartronics that have had this happen ..

**deathrider311271** · Sunday 7th December 2014, 22:55

have you had the car read with vida dice? or the etm checked with the test within vida dice? any lights on dash? it could be a number of things

**Ettienne** · Monday 8th December 2014, 07:13

Could be an air leak also I had similar. Need to read the codes

**JamesT5** · Monday 8th December 2014, 12:22

My opinion is either a Vacuum leak or ETM, with the later being where my money is.

**Pliskin** · Thursday 11th December 2014, 11:54

Well the problem has been solved and it was down to a faulty air valve leading to the injectors.

On the way home it was a lot more responsive but the tickover was a bit higher than normal and the revs were not dropping as fast as normal when braking.

When I fired it up the following day the engine management light came on and so back to the garage I went to be told it was the sensor that controls the camshaft settings.

Apparently it is a common fault with many of the original ones being replaced, which coincidently mine had in 2009.

The mechanic gave it a few quick taps with a rubber mallet and cleared the code.

She is now running really well and the pinking it had previously suffered from also appears to have gone.

**JamesT5** · Thursday 11th December 2014, 13:52

Originally Posted by Pliskin

Well the problem has been solved and it was down to a faulty air valve leading to the injectors.

On the way home it was a lot more responsive but the tickover was a bit higher than normal and the revs were not dropping as fast as normal when braking.

When I fired it up the following day the engine management light came on and so back to the garage I went to be told it was the sensor that controls the camshaft settings.

Apparently it is a common fault with many of the original ones being replaced, which coincidently mine had in 2009.

The mechanic gave it a few quick taps with a rubber mallet and cleared the code.

She is now running really well and the pinking it had previously suffered from also appears to have gone.

Mine has been cutting out and stalling but only on start up, but nothing as bad as yours was, my ETM is fine as Vida hasn't logged anything for it and it shows 'green' on the traffic light facility when I read the codes. I'm glad you got it sorted anyway, these P2 models are a ruddy minefield when it comes to fault finding.

**M-R-P** · Thursday 11th December 2014, 14:10

Nice to see a solution here, I know someone with very similar symptoms on their 2000 2.4 N/A, which I'm due to look at soon.

**JamesT5** · Thursday 11th December 2014, 14:14

Originally Posted by M-R-P

Nice to see a solution here, I know someone with very similar symptoms on their 2000 2.4 N/A, which I'm due to look at soon.

Another 'Driveway repair' Martin?

**M-R-P** · Thursday 11th December 2014, 14:45

Originally Posted by JamesT5

Another 'Driveway repair' Martin?

Yep - on my new driveway too

Funny story - it's my dentist who owns the car. I came in for a checkup and said "oooh... I need your number... my car is playing up and getting worse, can you look at it?"

"yes" I said...

"it'll cost you £18.50 for me to look at it..."

"£55.50 if I have to do some minor work..."

I've been holding on to that joke for years, I knew I'd be able to use it one day

**Pliskin** · Tuesday 3rd February 2015, 09:26

Originally Posted by M-R-P

Nice to see a solution here, I know someone with very similar symptoms on their 2000 2.4 N/A, which I'm due to look at soon.

I/We spoke too soon. Shortly after I got it home the ETM light came on again and all the original faults resurfaced, I took it back to the garage, had the codes read, which identified the ETM as the culprit so back it went to Volvo Diagnostics, who after taking a lot longer to do the original repair sent it back, during which time the car was sat on the drive. The ETM was refitted and guess what the fault codes are still there and the car is still unusual.

On the subject of all things unusual, I am not totally convinced that the ETM that I returned is the one he sent back. Although I know ordinarily a non original ETM needs to coded to a particular car, I have been told that on occasion a none original will work, albeit roughly.

I have suggested this to the guy at Volvo Diagnostics who denies it but couldn't answer satisfactorily the points I raised.

I am now resigned Does anyone know if the ETM has a serial number inside it.

**Pliskin** · Tuesday 3rd February 2015, 09:29

Sorry should have said " I am now resigned to buying a new ETM and starting from scratch, which when all things are considered will take me well past what the car is worth" No change there then

**stribo** · Tuesday 3rd February 2015, 09:56

I think there is a procedure to recoding a non original ETM to your car, I believe it involves just leaving the ignition on for 20-30mins, then turning the ignition offd, then starting the car. Hopefully someone can confirm whether this is the case, maybe worth a go before you go down the route of a new ETM.