Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Glyn]

Hi all
My 4 pot when accelerating hard gets to about 80mph ish , then develops a very noticable stuttering.
When towing the caravan it's so bad the car really shakes. (80 may seem a bit excessive when towing but that is only
when I'm trying to build up speed to get up an upcoming hill).
Upto 80 it runs perfect. I have changed the coil pack which made no difference.
Any ideas ?

Glyn

[Entwood]

I don't know what rpm 80 is in the 4 pot ... but what happens at the SAME rpm in lower gears ?? This will help show if it is engine linked or gearbox linked .... or even something else ...

[tunnie]

I don't know what rpm 80 is in the 4 pot ... but what happens at the SAME rpm in lower gears ?? This will help show if it is engine linked or gearbox linked .... or even something else ...

Auto shade under 3k rpm, manual, shade over 3k rpm.

Just to confirm the stuttering do you mean engine power? Because you say the car shakes, are we talking about wheel balancing here?

Are you feeling it through the wheel/seat?

[Glyn]

Its fine at lower gears high revs.
From standstill floor the throttle and it runs perfect till it gets to about 80 then  stutters.
In position 1 or 2 it will go to the redline no problem. In 3 or D it dose not get to the redline.

And yes engine power not wheel balancing, as I cannot even get to 90.

[tunnie]

You need to get the codes read, normally if its in "limp" mode it won't rev above 4k rpm in any gear.

[Glyn]

There are no codes.
It is not in limp home mode.
In every way it runs perfect except pushing 80.
Even on the way home this afternoon bearing in mind I live in the country on B roads,
I still overtake most cars without a problem.
Also because I,m mostly on such roads I don't often get to 80 and so don't get any stuttering.
But this afternoon I overtook a Golf which was only doing about 50 untill I started to overtake him
at which point he decided to put his foot down, which is why I got to 80 ish to get past.
Which reminded me of the problem, as for the most part I'm normally use my bike.

[Entwood]

Sounds like it might be gearbox related then ... as it only happens in 3 & D ...

[symes]

Sounds like it might be gearbox related then ... as it only happens in 3 & D ...

could it be oil level??

[Glyn]

Entwood
It seems it could be gearbox related.
I only checked for engine codes last time.

I checked the gearbox for fault code and I got these
0705-1835-0560-1625.

I have cleared them now and next week see if any come back.

Symes
I suppose I will have to check that also as its been about four years since
I did a gearbox filter and oil change and not checked it since.

Glyn

[Taxi_Driver]

Hmm.....car shake at 80mph....can you tell if its front or back?

Ive had that a couple of times....once very badly.....both times turned out to be a buckled wheel.

[Glyn]

Taxi Driver
No its definatly not a buckled wheel or balancing problem.
Once it starts stuttering it wont go any faster, even with your foot flat to the floor, and as soon as you lift off
it stops.

Glyn

[Taxi_Driver]

Taxi Driver
No its definatly not a buckled wheel or balancing problem.
Once it starts stuttering it wont go any faster, even with your foot flat to the floor, and as soon as you lift off
it stops.

Glyn

Ahh...ok misunderstood when you mentioned car shake....

In 3 whats the max rev's.....as it sounds like its limiting the revs tbh

[Glyn]

Taxi Driver
I'm positive its not hitting the rev limiter, I think if it was you wuld be doing well over a ton.
I am hopeing Entwood and symes are correct.
I have checked the gearbox oil level this morning and it was in fact a bit low, about a funnel full.
I topped it up and went for a drive, and although I couldn't find the space to quite get to 80 due to there being more traffic about than a Friday night rush hour, and I live in the country, I got to about 78 and felt confident it was going to be fine.
However I won't be sure till I've got to about 90. I will take it to work next week to try it for certain. Plus we're taking the van next weekend which will be a good test.
I would also just like to have a winge about the pillock who thought it was a good idea not to have a dipstick, and so turn a two second job into half an hour, prat.

Glyn

[tunnie]

Taxi Driver
I'm positive its not hitting the rev limiter, I think if it was you wuld be doing well over a ton.
I am hopeing Entwood and symes are correct.
I have checked the gearbox oil level this morning and it was in fact a bit low, about a funnel full.
I topped it up and went for a drive, and although I couldn't find the space to quite get to 80 due to there being more traffic about than a Friday night rush hour, and I live in the country, I got to about 78 and felt confident it was going to be fine.
However I won't be sure till I've got to about 90. I will take it to work next week to try it for certain. Plus we're taking the van next weekend which will be a good test.
I would also just like to have a winge about the pillock who thought it was a good idea not to have a dipstick, and so turn a two second job into half an hour, prat.

Glyn

Welcome to the designer of most things on the Omega, you will look upon him as your best mate. 

Especially when you change V6 DIS Pack, Stat on the V6,  V6 Cam Covers & plugs.

Luckily his involvement was mainly on the V6, as the 2.2 is nice to work on 

[Andy H]

Taxi Driver
I'm positive its not hitting the rev limiter, I think if it was you wuld be doing well over a ton.
I am hopeing Entwood and symes are correct.
I have checked the gearbox oil level this morning and it was in fact a bit low, about a funnel full.
I topped it up and went for a drive, and although I couldn't find the space to quite get to 80 due to there being more traffic about than a Friday night rush hour, and I live in the country, I got to about 78 and felt confident it was going to be fine.
However I won't be sure till I've got to about 90. I will take it to work next week to try it for certain. Plus we're taking the van next weekend which will be a good test.
I would also just like to have a winge about the pillock who thought it was a good idea not to have a dipstick, and so turn a two second job into half an hour, prat.

Glyn

Welcome to the designer of most things on the Omega, you will look upon him as your best mate. 

Especially when you change V6 DIS Pack, Stat on the V6,  V6 Cam Covers & plugs.

Luckily his involvement was mainly on the V6, as the 2.2 is nice to work on 

The placement of oil filter & DIS pack make sense on a wrong wheel drive car. Turn the engine through 90 degrees & it goes a bit pear shaped