Lumpy, not pulling.

boristhespie · Post by **boristhespie** » 20 Aug 2009, 18:38

Interesting to read this as my c5 hatch if getting worse re a similar problem. Gets up to 70 or more but when hitting a longish hill it drops. Got up to 90 yesterday on the dual carriageway (to try and make it without being embarrased) and by the ned of a 500 meter incline it was down to 50 by the top with the novas and ka going past. Sometimes you feel the engine just stop pulling and I can't rely on it to overtake. So will be interesting to read what your resutls are.

Incidentally on same dual carriageway today the front part of the undertray well away ay 70mph. I thought I had a puncutre but when I stopped in layby (scary) and looked under the front fixing had disintegrated. So as a pishing storm came, I had to pull it off but had nothing to do it. Then I found pliers. I got bloody soaked. Anyway I now need a new front part to the undertray to get. Don't know how much.

Let us know how your problem gets on.

dieseldoggy · Post by **dieseldoggy** » 20 Aug 2009, 19:08

Lol think you're be in the same club? has they all seem to come off C5's.
What breed of galloping9or not in you're case?) horse's live you're bonnet etc ie diesel 90/110-petrol?.
where about's are you? has place i use i think had a few undertrays in?
also have a few other places i could have a look for you if you're stuck for one.
Not sure if you need to replace on C5? as zanty's are ok without!

Post by **myglaren** » 20 Aug 2009, 19:13

Not sure if it were my post you are referring to Boris but I don't have any problems like that. Mine does feel a bit underpowered but it is nothing like you describe.

You may source an undertray from a scrapyard if there is one within sensible traveling distance for you.

It is a bit of a long shot but you might benefit from doing a battery disconnect then giving the car a good run as soon as it is restarted.

Have you inquired at the workshop that replaced your suspension bearings if they have an approppriate code reader capable of resetting the ECU?

vince · Post by **vince** » 22 Aug 2009, 09:43

Hi Boris, give us a bit more to go on

What engine is in yours?
Do you get flat spots when accelerating steadily through the rev range?
Does the power seem to drop off more when the vehicle is hot or it is the same when still cold?
Do you get any rough running when the accelerator is pressed?
Do you have any warning lights on the dash?
Have you had the codes read?

Initial thoughts if its a diesel?
- Turbo vac pipe come off or split
- Engine temp sensor
- Failing air mass meter
- Blockage in the exhaust system

boristhespie · Post by **boristhespie** » 23 Aug 2009, 10:27

Had a topic for this before. This is MyGlarens thread and I don't want to duplicate here or divert from his questions, but if along with helping Myglaren you want to know more re my story you can find my reply to these questions here.

http://www.frenchcarforum.co.uk/forum/v ... 669#191669

crossy2425 · Post by **crossy2425** » 23 Aug 2009, 11:41

Do the simple things first.
Air and fuel filter.

You may find after changing the fuel filter all is well. In tank strainer? check it.

Have you got clear fuel line just before the IP?
Could be air getting in...check it whilst ticking over and whilst revving.

Are all the turbo/intercooler pipes fitted and tight?

Not sure what IP is fitted but is there a boost pipe? If so is this OK?

boristhespie · Post by **boristhespie** » 23 Aug 2009, 11:58

The Fuel, Air and oil were all changed recently. I did the air and pollen filters. Eurocarparts sent the wrong housing for the Fuel filter so I got a dealer in France to replace the filter. They said the housing didn't need changing.

How do you check the fuel tank strainer?

but you can find out more on this here. Just Myglarens problem sounds a little like mine and I am interested on how his turns out as it may indicate something re mine.

http://www.frenchcarforum.co.uk/forum/v ... 669#191669

Post by **myglaren** » 23 Aug 2009, 12:38

boristhespie wrote:Had a topic for this before. This is MyGlarens thread and I don't want to duplicate here or divert from his questions, but if along with helping Myglaren you want to know more re my story you can find my reply to these questions here.

http://www.frenchcarforum.co.uk/forum/v ... 669#191669

Not 'my' thread Boris, anyone is welcome to chip in.

Mine is going to get sorted tomorrow, could be a few days before I get it back as I have asked for some other peripheral checks to be done too, pre-MOT so anything they find will be addressed. May have them drag the lift pump out and check it while they are on with it as the tank is just over half full now.

Will report back and hope that it helps with your diagnosis and fix.

fred1 · Post by **fred1** » 23 Aug 2009, 16:02

Hi,

Sounds very much like no turbo boost for some reason. So you could have had an air hose on the turbo output side come loose at one of the joints. This was quite common on the Xant.

Also very similar to the limp home mode on the C5.

Have you had any fault messages ?

Regards

John

boristhespie · Post by **boristhespie** » 25 Aug 2009, 21:23

How did your car get on?

Post by **myglaren** » 25 Aug 2009, 21:56

boristhespie wrote:How did your car get on?

Haven't got it back yet - I told them there was no hurry with it as I have my son's 306 and daughter's SAAB that I can use.

boristhespie · Post by **boristhespie** » 01 Sep 2009, 19:52

Any news

Post by **myglaren** » 01 Sep 2009, 20:01

Not yet. They have found a bad injector and it was going to a specialist in Blyth this afternoon.

They are prepping it for the MOT while they have it and it is looking like I will get it back tomorrow, all being well.

Wasn't throwing up any codes after being cleared, despite the rough idle and injector off.

Post by **myglaren** » 03 Sep 2009, 22:19

Got it back this evening, after work.

Felt all wrong driving it away after two weeks of 306ing around.

Gears slipped in with zero resistance. Clutch as light as a feather.

Brakes - Whoops! nearly an impromptu nosejob on the windscreen.

Smooooooooooth! and quiet.

Had to call at daughter #2's to attend to a computer problem and received dinner and haircut whilst there, then a 100 mile sojourn down the A1 to learn it to drive properly.

Fuel gauge barely moved

It was apparently injector #3 - so injector #2 more likely.
Dispensing NO fuel at idle and not much on increased revs so essentially running on 3 cylinders.
Injector testing was £20 per injector, rebuild was £100.
Total bill was £517. This includes pulling, cleaning, testing and replacing the EGR, boost valve, all the vacuum pipes, all the leads and sensors checked, lift pump checked and cleaned and so on...

Plus all bearings, ball joints and bushes checked, exhaust system checked, rear discs and pads replaced, brake fluid flushed and replaced...

Was rather a lot to pull out but at least I know that just about everything has been checked and cleaned and the car will (should) just sail through the MOT and be a pleasure to drive as well as being more economical.

Have to say that although I think the C5 suspension is rather lacking in comparison to Xantias and GSs - in particular Mr. Jim's Activa, it really was a feather bed journey compared to the non-hydro suspension of the 306.

Destitute but happy. - actually, it was probably cheap compared to pulling the head and finding nothing wrong, or taking it to the dealers where they would more than likely have replaced just about everything including all four injectors - £1,000 there alone!

I had a feeling all along that it was a duff injector but nothing other than a possibly hopelessly wrong instinct to go on.

boristhespie · Post by **boristhespie** » 03 Sep 2009, 22:57

Good to hear your happy. How do they check the injectors? Do they have to take them out?

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Lumpy, not pulling.

Lumpy, not pulling.

Okay

Re: Okay

HAve you it back yet