extended warranty info please

there is no need to tear a motor apart for that. compression test will tell you all you need to know.

If a motor has compression, spark, fuel, correct timing it will run.

have you located the misfire yet? I mean is it a single cylinder missfiring all the time or is it just a random stumble.

I mean if you are replacing all eight injectors, all eight coilpacks that is what I would call shotgun trouble shooting and as long as you not paying for it I guess it is fine but get expensive on MPI cars with individual coils per cyl.

sounds to me like you have lazy mechanics to me. I would try a different shop. they should not even let you take the car back if the missfire is still there. I mean did it clear up for a bit and then return?

you would have to research you exact states law but I think it applies to the factory waranty period. then the specifics break down by state but I would just search google.

my .02 on the problem if there is compression then the internals are fine. a slow leak should not effect a cylider to miss IMO.

since it is always cylinder 8 you just need to figure out if it is spark or fuel related. the fact they are trying both gives me pause. I have a feeling the problem is one or the other.

Like I said though sometime you just need to switch shops. my dad had an issue like this with an IROC. Car was running bad shifting eratic. dealership kept replacing stuff. sensors, pcm, etc took it to a different shop and it tured out to be a $30 knock sensor about the only thing the dealership did not replace.

So what has actually fixed it before? everthing they have tried? or is it mainly spark or fuel that fixes it.

the fact it runs fine when it leaves though means they may not be the problem I guess. I am just saying they may be a shade on the incompetant side if it has been back that many times for the same issue.

I have a 04 dodge diesel truck and the sevice department at my local dealership sucks. I have had a powersteering leak form month number 2 they can't seem to fix. I have told them since day one I though that the leak was at the pump itself. now after 1.5 years they are putting a new pump on this weekend.

now a different dealership may have fixed this the first time who knows. my dealership I go to put three hoses on before they are tying the pump. next time I have any issue I may try a different service department. I told them the last two times the hose was not going to fix it. but I am like you it is under waranty so I keep going back.