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[sptaylor75]

Hi

This is my first post

I have brought my first Omega yesterday (1997 2.5 V6 Reflection Auto - LPG conversion - 80k miles) and am very happy with it.

However I have discovered a few problems with it:

The first is that when in sports mode if I put my foot down and the rev counter goes near the red the car goes into Automatic Gearbox check mode and stays in 3rd gear.  However if I switch off the engine this disappears and car is back to normal. It seems to work fine when not in sports mode. (sports mode is so much more fun though!!!) and the gears don't seem to slip at all.  Could this be due to the gearbox fliud needing topping up or replacing or could it be more serious?

The second thing is that when I started it this morning and tried to pull away I had no power and the engine seemed to backfire, I stopped and left the engine idiling for a few minutes and it was fine again?  Not sure if this is anything to do with the LPG conversion, it was running on petrol while underpowered and backfiring?  It is also due a service which I have booked in next week, I suppose this may help?


Lastly when I press the traction control button nothing lights up on the dash but TC does light up (and go away!) when the car is first turned on?  Could this just be a problem with the button?


Apart from that the car is great and really good to drive, can't believe what bargains they are!


Thanks in advance for any help you can give?

[TheBoy]

Welcome to the site.

Gearbox, as first port of call, replace fluid. You have to remove box sumps, so you need 2 gaskets and a filter (£38 delivered from JPAT), and around 7l of Dexron III (£20 for 5l from Halfrods).

Lack of power. Any engine managment lights?

TC - check switch - should be a push to make.  If thats OK, check if bulb goes out with any other (ie, some scrotbag has wired TC litle in with another bulb to hide a fault).

[sptaylor75]

Thanks for help.

I will try that with gearbox to start with, fingers crossed?

No engine management lights came on all all

The button is pressed but nothing anywhere lights up?


Thanks

[TheBoy]

Thanks for help.

I will try that with gearbox to start with, fingers crossed?

No engine management lights came on all all

The button is pressed but nothing anywhere lights up?


Thanks

The TC on dash should light up.

Are you near me?

[sptaylor75]

The TC on dash should light up.

Are you near me?[/quote]



Yes i'm also in northamptonshire, where abouts are you?

I live in Corby and work in Northampton?

Thanks

[TheBoy]

Yes i'm also in northamptonshire, where abouts are you?

I live in Corby and work in Northampton?

Thanks

Brackley.

[sptaylor75]

Hi

I have now had a interim service on the car yesterday and all came back OK apart from that the fuel filter had disintergrated and was leaking badly.  This was replaced and I thought this would cure the problems I am having when starting from cold, however this morning it did start up OK but I still had the lack of power / misfire for the first few minutes?  Could the disintergrated fuel filter have damaged anything else.  Also the garage suggested getting the ECU reset if it was still no better, could this help?

Also this morning just after it had warmed up and seemed to be working ok the ABS and TC lights came on but went away again and did not reappear when I turned the engine on and off.

In regards to the gearbox the fliud was topped up but is still going to gearbox check mode when reved high in Sports mode, so suppose next try will be to get fluid changed, any body know where I could get that done reasonably in the Northamptonshire area as don't really feel confident doing it my self?

Thanks

[TheBoy]

Hi

I have now had a interim service on the car yesterday and all came back OK apart from that the fuel filter had disintergrated and was leaking badly.  This was replaced and I thought this would cure the problems I am having when starting from cold, however this morning it did start up OK but I still had the lack of power / misfire for the first few minutes?  Could the disintergrated fuel filter have damaged anything else.  Also the garage suggested getting the ECU reset if it was still no better, could this help?

Also this morning just after it had warmed up and seemed to be working ok the ABS and TC lights came on but went away again and did not reappear when I turned the engine on and off.

In regards to the gearbox the fliud was topped up but is still going to gearbox check mode when reved high in Sports mode, so suppose next try will be to get fluid changed, any body know where I could get that done reasonably in the Northamptonshire area as don't really feel confident doing it my self?

Thanks

Changing the atf isn't hard, you will do a better job than most garages

[sassanach]

whip the front sump of first and check for the thrust washer ,if there dont bother changing the fluid or filter as your on borrowed time already.if it isnt (fingers crossed) proceed as planned . a fluid change will make the world of difference

[sptaylor75]

whip the front sump of first and check for the thrust washer ,if there dont bother changing the fluid or filter as your on borrowed time already.if it isnt (fingers crossed) proceed as planned . a fluid change will make the world of difference

Thrust washer???

Also in regards to my starting issues thanks to "The Boy" for his advice so far.  I have checked the error codes using the paperclip method and there is none only code 12 appears.

There is definately no oil around the plugs.  I am going to try the wide open throttle start in the morning to see if the injectors are leaking and it is flooding, it now also seems to be idling a bit strangely and will occasionally just rev up for no reason when idiling or when your about to stop which can be a bit scary as you shot forward slightly!!!

Could this also be blocked injectors?

Thanks

[mv6copcar]

whip the front sump of first and check for the thrust washer ,if there dont bother changing the fluid or filter as your on borrowed time already.if it isnt (fingers crossed) proceed as planned . a fluid change will make the world of difference

Thrust washer???

Also in regards to my starting issues thanks to "The Boy" for his advice so far.  I have checked the error codes using the paperclip method and there is none only code 12 appears.

There is definately no oil around the plugs.  I am going to try the wide open throttle start in the morning to see if the injectors are leaking and it is flooding, it now also seems to be idling a bit strangely and will occasionally just rev up for no reason when idiling or when your about to stop which can be a bit scary as you shot forward slightly!!!

Could this also be blocked injectors?

Thanks

with the idle issue - ICV idle control valve. common part to cause problems on omega. there is a guide on how to clean it out with carb cleaner on the how to page
ABS/TC lights sounds like the ABS/TC ECU is on its way-again another common part to go wrong!
i had both these parts go on me a few weeks ago but i managed to sort them both myself.
Good Luck

[sassanach]

take a gander at "the dreaded thrust washer"in maintenance guides

[sptaylor75]

Hi

 I tried the wide open throttle start in the morning to see if the injectors were leaking and it is flooding.

I put my foot hard down on the accelerator and cranked over expecting the car not to start as advised, however the car started straighr away reved up and made  a "pop" sound.  I then still had the lack of power / misfire problem for a minute or 2 until warmed up and then car was ok again.  1 other thing I noticed this morning was that in drive I have no power straight away and could not rev and misfired but in Park in seemed to rev up ok?

[TheBoy]

Hi

 I tried the wide open throttle start in the morning to see if the injectors were leaking and it is flooding.

I put my foot hard down on the accelerator and cranked over expecting the car not to start as advised, however the car started straighr away reved up and made  a "pop" sound.  I then still had the lack of power / misfire problem for a minute or 2 until warmed up and then car was ok again.  1 other thing I noticed this morning was that in drive I have no power straight away and could not rev and misfired but in Park in seemed to rev up ok?

If it started at wot, thats not good - multiple leaky injectors?

[sptaylor75]

Hi all

I think problem is fixed (with cold starting at least!).  As said I put in bottle of fuel system cleaner yesterday and ran on petrol (instead of LPG) all day.  Also last night I had another look under bonnet and right near the front of the car just right of centre there was a split pipe, not sure what is for but turned on car and hot air came out of the split for about 30 secs once car has started and then stops.  This pipe leads into a circular thing that has wires coming out of it and another pipe the other side.  I  taped this split up until I can get it replaced as not sure how difficult it will be as pipe goes down towards bottom of engine.  Also now car seems to idle better and does not rev up as much when aircon is turned on while idling?
 
Anyway this morning car stared fine so not sure which thing fixed it, fingers crossed it doesn't come back?