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1

Omega General Help / Re: Erratic Tickover - Hunting.

« on: 22 July 2011, 13:09:41 »

Sorry if this has been covered before in here but work means I only get a few minutes to look !! 

After cleaning out the IACV and all relevant breathers last night (found a very good guide on here) I took her for a test run up to temp and when I pulled up on the drive the tickover fluctuates and hunts between 1000rpm & 2000 ish rpm

What are the steps to diagnosis ? What would be the next thing to check ?

Good news is cleaning the IACV has stopped the intermittent stalling !!

Need to do some miles in her from Thurs next week and at the moment I dont trust it to the bottom of the road!!

Check for air leaks

You mean on the breather hoses ?

Everywhere !!!

Spray around lightly with carb cleaner whilst the engine is running, especialy vac lines and plenum... if/when the engine note suddenly changes thats the air leak .. the carb cleaner has been sucked in as unmetered fuel and the engine note changes.

Fix leak, wipe with paper towel .. result ... engine runs properly and is nice and clean to boot ..

Cheers Entwood, Will try all that later...... and if this doesnt work what would be next ? Need to know worst case 

Cam cover gasket ?  :-/

Not a chance .. that will give you an oil leak outwards .not an airleak inwards.

You have disturbed a pipe/seal somewhere that is giving you an airleak. THAT is what causes hunting/erratic idling .. nowt else ..

Phew.... thats good news !!

Will pop out with my carb cleaner and paper towel this evening and find that leak.

OOF rules   8-)

2

Omega General Help / Re: Erratic Tickover - Hunting.

« on: 22 July 2011, 11:33:33 »

Sorry if this has been covered before in here but work means I only get a few minutes to look !! 

After cleaning out the IACV and all relevant breathers last night (found a very good guide on here) I took her for a test run up to temp and when I pulled up on the drive the tickover fluctuates and hunts between 1000rpm & 2000 ish rpm

What are the steps to diagnosis ? What would be the next thing to check ?

Good news is cleaning the IACV has stopped the intermittent stalling !!

Need to do some miles in her from Thurs next week and at the moment I dont trust it to the bottom of the road!!

Check for air leaks

You mean on the breather hoses ?

Everywhere !!!

Spray around lightly with carb cleaner whilst the engine is running, especialy vac lines and plenum... if/when the engine note suddenly changes thats the air leak .. the carb cleaner has been sucked in as unmetered fuel and the engine note changes.

Fix leak, wipe with paper towel .. result ... engine runs properly and is nice and clean to boot ..

Cheers Entwood, Will try all that later...... and if this doesnt work what would be next ? Need to know worst case 

Cam cover gasket ?  :-/

3

Omega General Help / Re: Erratic Tickover - Hunting.

« on: 22 July 2011, 11:30:28 »

I would check all the main trunking is intact and connected securely.  Check the breather hoses are connected securely and have no splits, cracks etc.

Did you put a new IACV gasket on it (and throttle body gasket if you took that off) or put the old ones back on?

I am not expert  just comparing to what I did with mine.  I have a split in my intake trunking on the throttle body, have had to patch it up with a ton of insulting tape at the moment until I can get it replaced.

Yeh new IACV gasket, didnt have the throttle body off. ?? Will be checking the Air intake now though...."where is me tape" 

4

Omega General Help / Re: Erratic Tickover - Hunting.

« on: 22 July 2011, 11:13:32 »

Sorry if this has been covered before in here but work means I only get a few minutes to look !! 

After cleaning out the IACV and all relevant breathers last night (found a very good guide on here) I took her for a test run up to temp and when I pulled up on the drive the tickover fluctuates and hunts between 1000rpm & 2000 ish rpm

What are the steps to diagnosis ? What would be the next thing to check ?

Good news is cleaning the IACV has stopped the intermittent stalling !!

Need to do some miles in her from Thurs next week and at the moment I dont trust it to the bottom of the road!!

Check for air leaks

You mean on the breather hoses ?

5

Omega General Help / Re: Erratic Tickover - Hunting.

« on: 22 July 2011, 11:11:49 »

Did you do right down to and including the breather jet (not just breather hoses)?

I had exactly the same problem on mine and after doing all the breather hoses and jet it made a world of difference.  Never stalled again and idles solidly at around 6-700 rpm.

Yeh, cleaned out IACV and the breather jet at the base of the carb.....was solid with gunk !! ??

6

Omega General Help / Erratic Tickover - Hunting.

« on: 22 July 2011, 10:19:27 »

Sorry if this has been covered before in here but work means I only get a few minutes to look !! 

After cleaning out the IACV and all relevant breathers last night (found a very good guide on here) I took her for a test run up to temp and when I pulled up on the drive the tickover fluctuates and hunts between 1000rpm & 2000 ish rpm 

What are the steps to diagnosis ? What would be the next thing to check ?

Good news is cleaning the IACV has stopped the intermittent stalling !!

Need to do some miles in her from Thurs next week and at the moment I dont trust it to the bottom of the road!!

7

Omega General Help / Re: Intermittent Stalling ? ?

« on: 19 May 2011, 14:29:46 »

Phew..... thats ok then, thought I may have another problem on my hands !!

Did a 110 mile round trip yesterday (motorway & traffic) and no problems at all ? Intermittent problems suck 

Still raining here so no chance of gettin under the bonnet for any length of time..... I miss my garage 

Anyhow as soon as the sun comes out will be on it.

cheers 

8

Omega General Help / Re: Intermittent Stalling ? ?

« on: 17 May 2011, 20:13:15 »

£2 thats a bargain, I might get two ! 

Oh and whilst we are on the subject.... would this problem make the temp hunt a bit ?

Drove about 25 mins tonight & hit traffic and the guage kept going up and down, nothing drastic & it didnt stall just going up a couple of marks then back down to around the 90 mark.

Is it linked or is this normal, never noticed it doing it before  :-/

Rob

9

Omega General Help / Re: Intermittent Stalling ? ?

« on: 17 May 2011, 15:59:48 »

Thanks all, will get the gasket bought and get under the bonnet with me carb cleaner as soon as it stops precipitating for five minutes !! 

Cheers 

Rob

10

Omega General Help / Re: Intermittent Stalling ? ?

« on: 16 May 2011, 14:37:39 »

Ok so had another spat today of intemittent stall.... 

Had driven half hour, stopped twenty minutes, then short trip home through town and it stalled five times in 5 minutes (pretty much every time I slowed past 5 MPH)

Came home printed paperclip test and nothing  :-? put in clip, turned ignition to II but nowt, checked clip tried with it at III, nothing.....

Am I doing something wrong or is the clip test not completely universal ?

Wanted to check codes before I tried to clean the IACV and to rule out Cam Sensor (had cam belt done 2000 miles ago).

Hmmmm an ideas.

11

Omega General Help / Re: Intermittent Stalling ? ?

« on: 09 May 2011, 23:18:05 »

Wow thanks that was quick ! (insert joke here  )

Will try all of the above........

Many thanks

Rob

12

Omega General Help / Intermittent Stalling ? ?

« on: 09 May 2011, 23:06:50 »

Hey all,

I have a very intermittent stalling fault on my T reg 2.0 petrol Auto.

It usually happens when the engine is warm and usually when you come to a stop, say in traffic and sometimes when you slow down to turn which can be a little scary when you go to turn across traffic !!

There seems to be no pattern to it ? The other day it did it on and off for an hour in city traffic after a long drive (2.5 hours) then just once in the next few days of varied driving ? !!

Would my best start point be the "paperclip" test ?

Any help or advice would be very helpful 

Cheers

Rob 

13

Omega General Help / Re: Engine Stalling ?

« on: 15 December 2010, 10:43:41 »

have a look here http://www.omegaowners.com/forum/YaBB.pl?num=1194007453

See I knew there would be a previous thread somewhere, Cheers Millwall for finding it out. 

Ok with all the advice I reckon a full service and at the same time follow the above and see if we find the little gremlin !!

Unfortunately I cant find a receipt for a full cam belt kit change either so perhaps put that on the cards too.

Anybody know an approx cost on how much to have the belt done ?

Rob

14

Omega General Help / Engine Stalling ?

« on: 14 December 2010, 23:42:21 »

My first post so first of all hello to all and thanks in advance for any help you may be able to give.

Straight down to business I am afraid.....

Bought my very first Omega on Saturday (1999 T 2.0 GLS auto) and so far I love it, large, comfortable and loving the drive. Now I didnt pay a kings ransom for it so I expect a few little niggles from an 11 year old car which I am sure i will be sorting in the coming months.

BUT when I drove home tonight I came to reverse into the street and it stalled when i moved from drive to reverse... started back up and reversed into my space, stopped and back to D and same thing happened! left it an hour and went out again and when I pulled up i put it into N and it stalled again.

Drive home a couple hours later and no probs at all ?  :-?

Any ideas guys ? Sorry if this is a regular problem but have not had time to trawl through and it says I cant search too often !!

Looking forward to any bright ideas.
 
Rob 

15

Newbie Welcome Area / Re: Omeeeegaaaaa

« on: 15 December 2010, 00:10:43 »

How very friendly of you all. may like it here !

I doff my cap to you all.

Oh and if you get five, any ideas on my stalling post in general help ?

Cheers