Omega Owners Forum - EGR valve on 2,5V6

Sehen

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Posts: 35
Norway, up north...

Drives: 98 Omega2,5 V6 Saloon

EGR valve on 2,5V6
15. Aug 2011 at 11:35

Newbie her on the forum, and have almost gone trough all the guidlines an general help. But i couldn't find any help about the EGR on my 98mfl v6.
It has a rough idling, and i have changed the essensials, like the spark plugs, new magnacores, cranc sensor due to a intermittent 31 iirc ,oil and filters all arround.
The engine is a 4 year old GM repleasement with only 60K miles on it.
I have the diagnostic that we should not say the name of Wink

, and there is no fault codes stored...
Is there anyone who have a guide or a how to about cleaning the EGR?

Yes, i have checked all the plumbing on the engine, new cambelt kit that's spot on and theres no leak in the ACC vacume

Hope for a fast response Cool

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dbug Omega Lord Offline Dont knock Linux! Posts: 7822 Northants Gender: Drives: 98 V6 Elite auto	Re: EGR valve on 2,5V6 Reply #1 - 15. Aug 2011 at 12:41 Tried cleaning ICV mate ?
Back to top	1998 Elite 2.5V6 Auto, 1967 Triumph TR4A, 1998 Elite 2.5V6 Auto Estate IP Logged

Sehen Newbie Offline Posts: 35 Norway, up north... Drives: 98 Omega2,5 V6 Saloon	Re: EGR valve on 2,5V6 Reply #2 - 15. Aug 2011 at 14:12 By ICV you mean the idler control? Yes, both the one in the car, and the spare From Norway, and don t understand all the abbreviation, but correct me if I'm wrong
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dbug Omega Lord Offline Dont knock Linux! Posts: 7822 Northants Gender: Drives: 98 V6 Elite auto	Re: EGR valve on 2,5V6 Reply #3 - 15. Aug 2011 at 14:28 Sorry mate ICV = Idle Control Valve
Back to top	1998 Elite 2.5V6 Auto, 1967 Triumph TR4A, 1998 Elite 2.5V6 Auto Estate IP Logged

Sehen Newbie Offline Posts: 35 Norway, up north... Drives: 98 Omega2,5 V6 Saloon	Re: EGR valve on 2,5V6 Reply #4 - 15. Aug 2011 at 14:41 Nice But, I was thinking (somethimes I do, actually!!!) the engine has standing in the garage for a year, could the EGR become corroded on the mating surfaces, so it wont be all the way shut when idling, and therfore slipping by some air?
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dbug Omega Lord Offline Dont knock Linux! Posts: 7822 Northants Gender: Drives: 98 V6 Elite auto	Re: EGR valve on 2,5V6 Reply #5 - 15. Aug 2011 at 15:00 Try blaking the EGR valve off with metal plate cut to fit
Back to top	1998 Elite 2.5V6 Auto, 1967 Triumph TR4A, 1998 Elite 2.5V6 Auto Estate IP Logged

Sehen Newbie Offline Posts: 35 Norway, up north... Drives: 98 Omega2,5 V6 Saloon	Re: EGR valve on 2,5V6 Reply #6 - 15. Aug 2011 at 15:19 Thank's I will try it later this afternoon, after i have done the alu headligt adjuster upgrade on my HID lights. New HID headlight costs appr. 400£ in Norway.....each... So the alu adjuster is the most funniest/chepest uppgrade on my car....ever
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Sehen

Newbie

Offline

Posts: 35
Norway, up north...

Drives: 98 Omega2,5 V6 Saloon

Re: EGR valve on 2,5V6
Reply #7 - 30. Aug 2011 at 00:33

Still struggeling with the rough ideling. I have cleaned the EGR, checked it's function, and even tryed to blank it, but nothing helped.
I have cleaned up the ICV on the car and my spare, tryed both of them, and still the same.
I did suspect the Coil pack, and almost ordered one today(350£ in Norway)
But the car is not missfiering on load, just rough idling and bad drivability on low RPM's
But today i did check the fault codes, and there was one code, engine colant high(not present)
I know for a fact that the engine has not overheated...
Is the coolant temp. sensor or the plug just kidding with me?
I will order the retrofit kit with gold plated connectors, and keep you posted.
By the way, are The Vauxhall World Parts a recomended site for chep parts??
The prices here are wery low compared to the Norwegians, and they ship worldwide.

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tigers_gonads Omega Knight Offline can't spell, don't care !! Posts: 1450 hull Gender: Drives: omega 3.0 v6 cd manual estate	Re: EGR valve on 2,5V6 Reply #8 - 30. Aug 2011 at 10:57 Its always a good idea to oil the Idle Control Valve after it has been cleaned
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cem

Omega King

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Posts: 13920
Ankara/Turkey
Gender: male

Drives: 97 2.5 V6 Manual CD- Clio Sport

Re: EGR valve on 2,5V6
Reply #9 - 30. Aug 2011 at 11:11

coolant temperature sensors are critical and fairly cheap ..

also if you want to check your engines condition,
try a compression test,

if its ok,

check the exhaust system for leaks (they generally leak from ex.manifold gaskets)

and also check for air leaks by spraying carb cleaner around engine...

must add, rough idles can be caused from many components which I spent a fortune on it in the past Sad

and also hot and cold idle problems differ..

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« Last Edit: 30. Aug 2011 at 11:21 by cem »

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Sehen

Newbie

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Posts: 35
Norway, up north...

Drives: 98 Omega2,5 V6 Saloon

Re: EGR valve on 2,5V6
Reply #10 - 30. Aug 2011 at 13:23

cem wrote on 30. Aug 2011 at 11:11:

coolant temperature sensors are critical and fairly cheap ..

also if you want to check your engines condition,
try a compression test,

if its ok,

check the exhaust system for leaks (they generally leak from ex.manifold gaskets)

and also check for air leaks by spraying carb cleaner around engine...

must add, rough idles can be caused from many components which I spent a fortune on it in the past Sad

and also hot and cold idle problems differ..

Engine ok, 4 year old GM transplant with 60K miles on it.
No exhaust leaks.
Practicaly cleaned the engine with high flameable gasses and liquids.
And, it's a hot idle problem Cry

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cem

Omega King

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Posts: 13920
Ankara/Turkey
Gender: male

Drives: 97 2.5 V6 Manual CD- Clio Sport

Re: EGR valve on 2,5V6
Reply #11 - 30. Aug 2011 at 18:20

Sehen wrote on 30. Aug 2011 at 13:23:

cem wrote on 30. Aug 2011 at 11:11:

coolant temperature sensors are critical and fairly cheap ..

also if you want to check your engines condition,
try a compression test,

if its ok,

check the exhaust system for leaks (they generally leak from ex.manifold gaskets)

and also check for air leaks by spraying carb cleaner around engine...

must add, rough idles can be caused from many components which I spent a fortune on it in the past Sad

and also hot and cold idle problems differ..

Engine ok, 4 year old GM transplant with 60K miles on it.
No exhaust leaks.
Practicaly cleaned the engine with high flameable gasses and liquids.
And, it's a hot idle problem Cry

is it surging up and down ?

does the engine shake randomly ?

ps: 4 yr old and 60k doesnt guarantee anything imo Undecided

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« Last Edit: 30. Aug 2011 at 18:23 by cem »

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cem

Omega King

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Posts: 13920
Ankara/Turkey
Gender: male

Drives: 97 2.5 V6 Manual CD- Clio Sport

Re: EGR valve on 2,5V6
Reply #12 - 30. Aug 2011 at 23:36

Sehen wrote on 30. Aug 2011 at 13:23:

cem wrote on 30. Aug 2011 at 11:11:

coolant temperature sensors are critical and fairly cheap ..

also if you want to check your engines condition,
try a compression test,

if its ok,

check the exhaust system for leaks (they generally leak from ex.manifold gaskets)

and also check for air leaks by spraying carb cleaner around engine...

must add, rough idles can be caused from many components which I spent a fortune on it in the past Sad

and also hot and cold idle problems differ..

Engine ok, 4 year old GM transplant with 60K miles on it.
No exhaust leaks.
Practicaly cleaned the engine with high flameable gasses and liquids.And, it's a hot idle problem Cry

with what and how..if you applied carbon clean methods or similiar on a 60k engine , partially cleaned valves will mess up the idle badly..

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Sehen

Newbie

Offline

Posts: 35
Norway, up north...

Drives: 98 Omega2,5 V6 Saloon

Re: EGR valve on 2,5V6
Reply #13 - 31. Aug 2011 at 02:17

cem wrote on 30. Aug 2011 at 18:20:

Sehen wrote on 30. Aug 2011 at 13:23:

cem wrote on 30. Aug 2011 at 11:11:

coolant temperature sensors are critical and fairly cheap ..

also if you want to check your engines condition,
try a compression test,

if its ok,

check the exhaust system for leaks (they generally leak from ex.manifold gaskets)

and also check for air leaks by spraying carb cleaner around engine...

must add, rough idles can be caused from many components which I spent a fortune on it in the past Sad

and also hot and cold idle problems differ..

Engine ok, 4 year old GM transplant with 60K miles on it.
No exhaust leaks.
Practicaly cleaned the engine with high flameable gasses and liquids.
And, it's a hot idle problem Cry

is it surging up and down ?

does the engine shake randomly ?

ps: 4 yr old and 60k doesnt guarantee anything imo Undecided

It shake randomly, then it will be okay for some seconds, and then shake again. The engine whas tested for vacum leaks with some carburettor cleaner and "starting gas" ?? on the outside only, without any luck.
When this heppens, the live data from the O2 sensors go from lean to rich, but does not create a fault code.
I have changed the crank sensor after a intermittent 31 code, and the starting problem dissapeard, like the 31.
The engine is checked, and the timingbelt and compression is ok, so is the color of the spark plugs, they all look the same.
There is no back compression in the system, and the crankhouseventilation works fine.
Cant find enything wrong with the live data from my diagnostic either, but I'm going to test my sons 2,5V6 with the diagnostics to compare, just have to wait until he comes back from school for a weekend

So I'm still confused, because the car runs good, and slightly pulls ahead other 2,5V6's.
So, my question is: ???????? Undecided

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cem

Omega King

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Posts: 13920
Ankara/Turkey
Gender: male

Drives: 97 2.5 V6 Manual CD- Clio Sport

Re: EGR valve on 2,5V6
Reply #14 - 31. Aug 2011 at 10:57

Sehen wrote on 31. Aug 2011 at 02:17:

cem wrote on 30. Aug 2011 at 18:20:

Sehen wrote on 30. Aug 2011 at 13:23:

cem wrote on 30. Aug 2011 at 11:11:

coolant temperature sensors are critical and fairly cheap ..

also if you want to check your engines condition,
try a compression test,

if its ok,

check the exhaust system for leaks (they generally leak from ex.manifold gaskets)

and also check for air leaks by spraying carb cleaner around engine...

must add, rough idles can be caused from many components which I spent a fortune on it in the past Sad

and also hot and cold idle problems differ..

Engine ok, 4 year old GM transplant with 60K miles on it.
No exhaust leaks.
Practicaly cleaned the engine with high flameable gasses and liquids.
And, it's a hot idle problem Cry

is it surging up and down ?

does the engine shake randomly ?

ps: 4 yr old and 60k doesnt guarantee anything imo Undecided

It shake randomly, then it will be okay for some seconds, and then shake again. The engine whas tested for vacum leaks with some carburettor cleaner and "starting gas" ?? on the outside only, without any luck.
When this heppens, the live data from the O2 sensors go from lean to rich, but does not create a fault code.
I have changed the crank sensor after a intermittent 31 code, and the starting problem dissapeard, like the 31.
The engine is checked, and the timingbelt and compression is ok, so is the color of the spark plugs, they all look the same.
There is no back compression in the system, and the crankhouseventilation works fine.
Cant find enything wrong with the live data from my diagnostic either, but I'm going to test my sons 2,5V6 with the diagnostics to compare, just have to wait until he comes back from school for a weekend

So I'm still confused, because the car runs good, and slightly pulls ahead other 2,5V6's.
So, my question is: ???????? Undecided

check the alternator pulley..

although I still think you may have problem with a cylinder or 2 (may be ignition related) you can swap some sensors with the other miggy..

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