sedona 2.9, 07 plate, powerloss in engine, sick of it

[Jo-AnneFairway5402010]

got the car back last week after being in the dealers for 2 days. they couldnt find a problem on the diagnosic machine.

when it cold it sounds like a transit. then as you are driving it hot or cold going up the gears it jerks.

the worst thing of all is when you are on the motorway and go to over take somebody and theres no power to do so and then engine check light comes on omg frightening.

ive had enough the rac are picking it up tomorrow and are taking it to the dealers. ive told them i dont want it back till they find the fault and its fixed. ive told them to use it and for someone to take it home.

so the hire car comes tomoz what do you think we will get?, have a guess and ill tell you tomoz.

jo

 

[allen1]

Hi jo-anne

I had the same problem in 04,the old sweat of a mechanic knew straight away what it was,a fuel cut off switch which is positioned under the brake pedal or there abouts.He had it adjusted in 5 mins,no probs since.Hope this helps.

 

[alunhve]

We have had periods of power loss with our 02 plated Sedona 2.9 diesel but these have only been at low speed. Local garage was unable to help and nearest dealership ran diagnostics and only fault was a faulty brake light switch. Despite replacement of the switch we still get periodic bouts of the problem and have decided to put it down to variations in the quality of the diesel at our local Sainsburys

 

[GillC1]

jo-anne

We had the same problem with our renault espace, we kept getting told it was the EGR Valve, we got rid, couldn't cope with constantly breaking down

 

[rob_jax]

Alun

"we still get periodic bouts of the problem and have decided to put it down to variations in the quality of the diesel at our local Sainsburys"

Almost certainly that is not the problem - supermarket diesel is produced at the same refinery as the branded (Shell, BP, etc) fuels, and made to the same EN590 standard. And doesn't vary in any meaningful manner from day to day or year to year.

Even in winter, when anti-waxing agents are added to diesel fuel - these are the same for all fuels. The only difference is in the exact nature of the additive pack (cleaners and pump lubricants) - and these have no direct effect on the performance of a clean, regularly maintained engine.

You need to look elsewhere for the source of your Sedona problem - unless it has gone away.

Robert

 

[Jo-AnneFairway5402010]

allun, i have to agree with robjax. all petrol and diesel comes from the same place its just the adatives that are different.

maybe your is down to the fuel cut off switch under the brake pedal that allen? sugested.

as yet kia havent found a problem. they have contacted there H/O to try ans shed some light on it. they also have to get there permission to start taking the engine apart. i think its something to do with the fuel system somewhere.

ill keep you all posted

thanks

jo-anne

 

[Jo-AnneFairway5402010]

well well well in this months pc mag someone has wrote in about the service from kia on his kia sedona. he also has an problem that only happens now and then and it looks like they only tinker with his car also and can never find the problem either. david motton rang kia and they have extended his warrenty for another 12 months so good on you david.

ive now got my hire car till monday i have told kia i dont want the car back unless they find the fault and fix it. ive had loss of power on a number of occations twice pulling out on an island and 3 times on a motorway. im scared to drive it and im not putting my family at risk. they dont belive me whats it going to take for them to belive me us at the side of the road with a sedona and a new caravan written off.

all they have done is put it on the machine twice and thats it. they wont even take any parts of the engine to have a look.

ill keep you all posted.

ive had my rant now thanks for letting me bend you ears.

jo-anne

 

[Jo-AnneFairway5402010]

update, after kia having the car for a week and a half at last they belive us. they agree there is a knocking/tappit sound, the engine check light came on and it lost power and the machine has found 3 faults hooray.

i will be having another update on friday to see where we go now. if its fixed then fab if not the another mpv/4x4.

i know one of the faults is fuel pressure which we told them about, then i think a valve?, dont know about the 3rd one.

ill keep you updated.

jo-anne

 

[Daniel_374322765]

update, after kia having the car for a week and a half at last they belive us. they agree there is a knocking/tappit sound, the engine check light came on and it lost power and the machine has found 3 faults hooray.

i will be having another update on friday to see where we go now. if its fixed then fab if not the another mpv/4x4.

i know one of the faults is fuel pressure which we told them about, then i think a valve?, dont know about the 3rd one.

ill keep you updated.

jo-anne

Hi Jo-anne

I am technician for a mercedes-benz dealership and reading what you have written it sounds to me as though your vehicle is going into 'limp mode'. which is designed to reduce the output of engine and minimise any further damage to components.

The cause of this could be one of many things. Brake light switch adjustment could be one reason. If the brake lights are activated the engine managment will reduce power at it thinks your braking. This sort of thing tends not to log a fault as under normal driving situations this would not happen. However the throttle and brake signals cause conflict and 'down on power' is the result.

You mentioned however, that the first time you took it into the dealer the managment light had been on. This would almost certainly have logged a fault in the system which they should have processed, but didn't.

I am assuming the fuel system is common rail, in which case fuel pressure is critical. I would be checking all pipe connection for damage or loose fitting as often these sorts of faults tend to draw air into the fuel system rather than leak diesel. This aeration causes the fuel pressure sensor to pick up low fuel pressure, again resulting in D.O.P.

Having said this it could be anything from a faulty injector (with reference to the 'knocking') to a software fault in the engine control unit, it could even be a loose pipe on the boost pressure circuit. Their diagnostic equipment should help them pin point the area of cause. However, diagnostic equipment is only as good as the person using it.

Lets not forget the vehicle is virtually brand new and you can bet it will be something relatively simple.

I do sympathise with you and them. You say the've had it a week. Good job it's under warranty and your not paying for it!

Hope you get it sorted.

Dan

 

[Jo-AnneFairway5402010]

dan, they have had it for a week and a half this time. the week before they had it for 1 day and couldnt find a fault. they didnt even take it out on a test drive we wrote the milage down as we dropped it off. we bought it home from the dealers the 2nd time and it happend on the m6 with the kids in the car it almost caused a serious accident.

i know going into limp mode is like a safety feature on it but i just hope that they fix it this time. at least now they belive us i told them to use the car as though it was there own because they wouldnt find the fault if they didnt. its a shame that i had to take it further for them to belive me.

im going to ask for the fault codes and what was wrong with it and what have they done and what parts were replaced to fix it.

thanks for your advise dan and ill keep you posted on this.

thanks

jo-anne

 

[John_374360384]

dan, they have had it for a week and a half this time. the week before they had it for 1 day and couldnt find a fault. they didnt even take it out on a test drive we wrote the milage down as we dropped it off. we bought it home from the dealers the 2nd time and it happend on the m6 with the kids in the car it almost caused a serious accident.

i know going into limp mode is like a safety feature on it but i just hope that they fix it this time. at least now they belive us i told them to use the car as though it was there own because they wouldnt find the fault if they didnt. its a shame that i had to take it further for them to belive me.

im going to ask for the fault codes and what was wrong with it and what have they done and what parts were replaced to fix it.

thanks for your advise dan and ill keep you posted on this.

thanks

jo-anne

Hi Joanne

I have a Kia Sedone 12 months old it is on it's third engine as a result of 2 broken hose clips and 1 stuck thermostat but I have been told this engine has a cooling system problem and it

over pressurises when runnig for long periods ie over half an hour good luck

John