rattle at idle

[lali]

not to savvy on problems with cars but I know when my car does not sound right after driving over 100.000 miles in it,

 

started to hear a rattle but the car was still driveable as in 'no engine management lights' coming on. 

 

Then on startup one morning after about a week of this it really rattled and engine management light came on with the orange coil light.  Stopped driving it immediately.

 

had one of the fuel injectors replaced but the rattle is still there.

 

this sound is a underlying noise like a tinny rattle.

 

this noise is more at idle, when you rev engine it seems to go away, then when it is at idle again it comes back, intermittantly at times but definately more at idle

 

something else as well it really smells of exhaust fumes from the exhaust pipe when driving and in idle too

appreciate any help or if anyone had same problem

[Wile7]

I am no expert and assume it's a diesel car?

The only thing I can think of is a snapped/broken thing around manifold issue - possibly near the point of fixation to the engine. A change in exhaust gas pressure will cause all kinds of electrickery to come alive plus the noise could be a broken bit of metal tapping against itself. At idle or low speed the fumes will enter the cabin and the noise exaggerated but whilst at speed the air carries the fumes (and the noise) away.

Just a thought. I had this on a car once thinking the worst (cam or head issue...) but it was a broken exhaust manifold that had simply rusted away underneath. Not an expensive fix.

Hopefully it might be as simple as that......

Dave

[lali]

thanks for reply but that is not the problem.

skoda superb saloon 2 litre common rail, running on three cylinders and injector one reading is stuck at 2.99.  No fault codes and injector and wiring have been replaced.

[lichfielddriver]

thanks for reply but that is not the problem.

skoda superb saloon 2 litre common rail, running on three cylinders and injector one reading is stuck at 2.99.  No fault codes and injector and wiring have been replaced.

 

sounds like you need a new injector!

[lali]

already replaced that, still got the problem

[lali]

Dave thanks for your reply I have sent this to my mechanic as they are at a loss as to what is wrong.

new injector, cleaned EGR. sent off computer chip and no fault with that either. 

what you are saying makes sense to me because the smell in the car and the fumes coming out are terrible

thank you very much for at least trying to answer this for me

[lali]

yes it is diesel

[sherlocks VRS]

not saying it will cure it but when you had the injector fitted did the injector get coded in, sometimes if they don't get coded they sound horrible (diesel knock)

[lali]

thank you for your help it is very much appreciated, I will send your reply to my mechanic

[lichfielddriver]

If you were nearer the standard advice here would be to book it into Swad diesels, Gods of the Ignition Compression engine (but not cheap)

Edited 24 August, 2015 by lichfielddriver

[lali]

thanks for your help

[lali]

yes the injected was coded

[lichfielddriver]

get all 4 leak tested insitu/running or take off and have them done on a test rig

 

Edited 26 August, 2015 by lichfielddriver

[lali]

I am a lady driver and relying on knowledge of mechanic, had my car a month now.  I am so upset I could cry

[lichfielddriver]

diesel engines are a special bit of kit, not for every garage, they may be ok with a petrol engine or even most of a diesel, but the special innards of a diesel engine need a specialist, the injector coding - ive known garages put the OLD injector code on a new injector or enter a wrong code, even the pipes and washers can affect them

[lichfielddriver]

yes the injected was coded

 

i just dont trust garages lali

[lali]

neither do I now

[peterposh]

Take the car elsewhere

[lali]

h!uled my car up to SWABS yesterday.  £500 bill from my mechanic too for NOT fixing my car. NICE!

[superbdreams]

what is SWABS? 

[lichfielddriver]

I think lali means SWAD diesels (swadlincote)

 

They should have an answer for lali soon, and a bill knowing shayne

[lichfielddriver]

gone very quiet ---- knowing Swad diesels they have induced a panic attack with the invoice and our intrepid Lali has been taken to hospital to get over the shock

 

 

on a good note they car will be fixed

[lali]

yes they are fixing the car and will let you know the outcome when I know

[lichfielddriver]

fingers crossed

[lichfielddriver]

its only a few miles from me