i have a problem wth my car. afew days a go i was on the motorway and the car started shaking and ripping back and forword and it wasnt alowing me to accelerate,also smoke coming out. the rev was going back and forward, had too stop and let the car cool up. n e way a mission to get bk home. went to the garage checked the maf and the fuel filter was ok. so i changed the spark plugs. it seemed to be ok again but after half hour it started shaking again so changed the leads for the plugs, done that now. but it still seems to be missing and the rev stays very low 3 lines under 1000 rpm. when starting is shaky but in higher revs it seems to be ok. (so far n e way) any have come a cross a probmel like this before or know what the problem is please HELP. thank you.

 

any1?

 

the car is really bad now
its missfiring and missing all the time
can any 1 help?

 

Check the plug leads mate, plugs and coil packs will cause these problems as they break-down when hot.

 

As long as the smoke isn't coming from your exhaust. If it is then that's a BAD sign. Could be leaking oil into a cylinder. I had the same symptoms on a GTO and it turned out that a cylinder bore had been scratched and oil was leaking in via a piston ring. Cost me £5k to get it fixed.

 

So where 'is' a good place for smoke to come from

Change the coil pack mate

 

If it is oil in the exhaust and he only changes the packs, your advice could cause damage to his engine

Get it checked by a professional with the proper diagnostic tools

 

What colour is the smoke mate??

White= Water
Blue = Oil
Black= Fuel

 

it was black colour. since i changed the leads, for a mile or two it was missing againg but i drove for a while now and everything seems ok. will see how its running within the next few days. thanks for ur advise . helpfull.

 

Good
Black smoke would indicate unburnt fuel, prob caused by a duff plug or lead

Pleased your sorted now

 

seems not. i drove to work today. it was ok for the first 5 min. but as it warmed up. the cars started missing very badly and i could see smoke from the back. the rev was reaching 0 at a point i thought its gone go off. duno any more. going to the garage to have a look again. spent over £70 on plugs and leads and still thesame. (

 

like b13bat says,it sounds like coil pack.i had the prob on 98 gt-b.heat from engine breaks them down prematurely.you can change leads and plugs 100 times and it wont help if coils buggered.not sure wot model you got but have you checked connection to thottle position sensor?good luck

 

i have changed the coil packs. and went for a spin, as soon as the car warms up the misfiring starts. after 10 min there was smoke coming out and realy hard to get it up to spped of driving , (shaking). milliemoo u mentioned (not sure wot model you got but have you checked connection to thottle position sensor?) not sure what you mean any chance u can explain simpler terms. where should i look for?

 

any 1 can help please?