Going to battle it out with Mitsubishi
 

So, they're going to try and deny my warranty claim. Here's the full background.

While on the cruise I threw an SES light: p0302 cylinder #2 misfire. Schiedes reset the ECU to clear the code. It came on again (later found out it was P0300 random/multiple misfires). The car seamed fine in 1st-4th. But when I got in to 5th and started to accelerate it would shudder. I could drive it in 5th fine, but couldn't really get on it.

This was probably 30 miles from the hotel when all this happened. Drove it there just fine, staying off the accelerator. On the way home the next day, the rod blew, in 5th gear at about 60-65 mph.

Somewhere on one of the computers (not the ECU) it says the car over revved. The OEM rev limiter in the car is 7599 (redline is 7000). The car over revved to ~7900PRMs.

Being that the car is totally stock, Mitsu is trying to deny my claim based on this over rev. What I'm wondering is how the connection from an over rev could (if at all) lead to a blown rod. Over rev should in theory either spin a bearing or damage the valvetrain, right? Either of those could lead to a busted rod. But I want to see either of those or something else in between is actually the case before they try to deny it, cuz it feels like they're jumping from A to C with out knowing what's in between.

Also, how did it over rev in the first place? I could see if it was at high RPMs and I down shifted several gears and the engine continued to roll on. But that's not the case here.

Or, am I totally wrong and simply the over rev and directly cause the blown rod?

Re: Going to battle it out with Mitsubishi
 

If your car rev limiter at 7599 , no way you can rev up to 7900 , unless you down shift in high rpms then you can record 7900.

Re: Going to battle it out with Mitsubishi
 

This is what I thought too.

Re: Going to battle it out with Mitsubishi
 

Good luck with battle !!!

Re: Going to battle it out with Mitsubishi
 

Is there anytime that you went over the stock redline?

Re: Going to battle it out with Mitsubishi
 

It could potentially weaken it to the point of failure depending on exactly how the rod failed. I highly doubt it though, DSM factory rods and pistons have gone way higher than that repeatedly, something else is wrong here.

Re: Going to battle it out with Mitsubishi
 

Revs, high torque load....any sharp, sudden change could lead to problems...theoretically.

I've rev'd both of my evos to 8000 though, that's really not much of an over-rev.

Re: Going to battle it out with Mitsubishi
 

This is an X remember...not a 6-bolt :)

Re: Going to battle it out with Mitsubishi
 

Good luck on getting a new motor.

Re: Going to battle it out with Mitsubishi
 

I have a real hard time believing you can throw a rod on those things by running 500rpm over the factory fuel cut.

The factor of safety used to design the rotating assembly is usually enough to accommodate all sorts of unforseen load factors, because its easier to overdesign something than it is to constantly fix it under warranty.

Maybe you had a slightly defective rod from the factory and over time it fatigued and failed.

Re: Going to battle it out with Mitsubishi
 

So, I guess the first thing is: is it even possible to over rev it in neutral?

Re: Going to battle it out with Mitsubishi
 

You can misshift and over rev as well, free revving essentially.

Ask me how I know :)

Re: Going to battle it out with Mitsubishi
 

Oh boy haha how??

Re: Going to battle it out with Mitsubishi
 

Over 9000 when I was getting clutch lockout at the track :)

Re: Going to battle it out with Mitsubishi
 

:jerikoporn:Damn!!!!!!!!!

Re: Going to battle it out with Mitsubishi
 

Time to back out of that lease.

Re: Going to battle it out with Mitsubishi
 

So sounds like it is possible for it to rev past the rev limiter.

The next question is what actual damage does that cause? Things like a spun bearing, floating a valve... What else could an over rev directly cause.

Re: Going to battle it out with Mitsubishi
 

Didn't you say you missed a gear and grabbed another by accident? That would be a mechanical over-rev, no rev-limiter can stop that.

My theory is that the over-rev damaged a spark plug and then the damaged spark plug caused some crazy detonation damaging the rod.

Re: Going to battle it out with Mitsubishi
 

No, it was in neutral. I understand that a mechanic over rev can happen if I were to have downshifted at high Rpms, but that wasn't the case.

Re: Going to battle it out with Mitsubishi
 

You cant over rev in neutral, It just isn't possible unless your factory rev limiter was removed. Maybe you miss shifted and it all happened so fast you cant remember. But that should cause damage to the motor right then, not 50 miles later?

Re: Going to battle it out with Mitsubishi
 

How would the over-rev damage a spark plug?

I could see if it had been missing a lot (the multiple miss fire codes) that the rod could have been taking a beating the whole time it was missing trying to do pulls then just randomly let go. I threw a rod on my old celica just doing 75/80 down the highway when it was full of oil.

Were you getting on it at all when it let go?

I agree that I don't really see how one over-rev could make a rod shoot threw the block 50 miles later, especially only 500rpm over-rev.

Good luck!!

Re: Going to battle it out with Mitsubishi
 

This is exactly what I thought. I'm 100% sure this was not a mechanical over rev and that the car was in neutral. I remember coming out of 3rd, down in to 4th, and hitting my wife's elbow which prevented me from getting in to 4th. So when I got back on the gas, I was out of gear.

If it is the true that the car can't over rev in neutral, and my car did over rev in neutral, then I'd say it's a failure of the rev limiter.

When it blew I was doing like 60-65 MHP in 5th. Just holding it steady, not accelerating.

Re: Going to battle it out with Mitsubishi
 

I'll give u $10k for it.

Re: Going to battle it out with Mitsubishi
 

Should of bought a honda. Sounds like your going to be paying for everything. If the computer says it was over reved then your shit out of luck.

Re: Going to battle it out with Mitsubishi
 

My question is that if the car is stock, with low miles, why would you completely ignore a misfire code? Theres a reason why the CEL comes on. The fact that you continued to drive it where there was a random multiple misfire code and the car was bogging down in 5th... I don't know what to think.

Good luck getting it repaired.

Re: Going to battle it out with Mitsubishi
 

Even if you did over rev, should that really be a condition to deny a warranty claim? Over reving does not necessarily mean you were beating on your car. It can be a simple accident. Car manufactures replace transimissions all the time, when people misshift and grind a gear. Something like that is usually a sign of a goof up. Your over reving is the same thing in my book.

Of course maybe the fine print of a manufacture warranty has all sorts of disclaimers these days and even a sign of any over rev can void it. But I'd still fight it.

later,
Curt

Re: Going to battle it out with Mitsubishi
 

I wouldn't waste time fighting it...you will tire yourself out.

To have any chance you will need a lawyer who will cost tons of money. Then you are still likely to lose.

I'd man up and put a new motor in it. That's what I did when my totally stock, stock motor blew up :)

Re: Going to battle it out with Mitsubishi
 

^ LOL yea give up now and put a fully built motor in that leased car. Makes lots of sense.

Re: Going to battle it out with Mitsubishi
 

Yes do full built motor with crazy bolt ons then give back when lease is over. you buy car at end of lease you will have more headache. when that motor blew you should put a hole in oil pan. They would of never checked the ecu

Re: Going to battle it out with Mitsubishi
 

I was being sarcastic.

I wouldn't of modded a leased car either ;)

I still don't think its worth any effort fighting this.

Re: Going to battle it out with Mitsubishi
 

Okay good hahaha, I didnt catch the sarcasm.

Re: Going to battle it out with Mitsubishi
 

I thought you had some mods?

http://www.mitsustyle.com/forums/sho...3&postcount=18

Re: Going to battle it out with Mitsubishi
 

Lol I have 11,000$ on it

Re: Going to battle it out with Mitsubishi
 

No idea what you're talking about!

Re: Going to battle it out with Mitsubishi
 

Any reason why you didn't respond to my question about the multiple CELs the car had, even though you continued to drive it? And when you did drive it, you tried to get on it in 5th but the car wouldn't respond?

All in all, I'd plead the fifth and maybe next time, don't post on a public forum that has members that work in the industry. Who knows who might be lurking.

Re: Going to battle it out with Mitsubishi
 

Whats up with the exclamation point. When some minor mod and tune was done based on your past post . Anyway this is a tough battle. GL.

Re: Going to battle it out with Mitsubishi
 

http://forums.evolutionm.net/09-rall...sad-story.html

Might want to talk to this guy and see how his last month has been.

Re: Going to battle it out with Mitsubishi
 

You're main problem isn't going to be the over-rev. It's going to be that Mitsubishi can see how many miles the car was driven and how many times that cylinder misfired. That is where they are going to get you is neglect. Had you taken it in when the light came on or gotten it towed and they could have rectified the problem you would either A) have a running car or B) at least have some record of it at the dealer for that problem.

Re: Going to battle it out with Mitsubishi
 

Warranty review denied. I'm contacting a friend who is a lawyer in consumer rights to see what he thinks my next move should me. I'm also trying to get in contact with the person who actually makes that decision for further clarification as to the reason for the denial.

Re: Going to battle it out with Mitsubishi
 

From reading the thread that schiedes posted and yours. It doesn't sound like you have to much to stand on.