Bad day, please help.

[Eclipse_GS]

So today I get home from college, and decide that I want to go out and get some food with my friends. I'm pulling out of my street and as I'm shifting into third I take my foot off gas to shift and notice that my tach is still rising and now that the clutch is out its above redline, even though I'm not pushing the pedal down. I quickly try to figure out whats wrong and see that my damn floor mat had held the pedal in place. So basically the engine is above redline with the clutch out for around 3-4 seconds. I pulled over to make sure everything is OK. Its not. Now there is a loud rattling noise in the engine. Almost like its scraping and rattling at the same time (sorry if the sounds weird). I check oil and its fine, when I start the car its loud as it starts and then it get quiet. When you put the clutch in at idle is makes the noise (loudly) but when you put the clutch out its back to quiet. If you have the clutch out and rev it to 2k it rattles again. I drove it back to my house (around 1/4 mile) and when you were in gear driving slowly it doesn't sound to bad, its when you stop or you drive and your tach gets up to 2.5k that it sounds bad. The car shifts OK, and this didn't seem to cause any new leaks. Any help would be great, thanks in advance. Have a great thanksgiving.

 

[Defiant]

You've wiped a bearing, either rod or balance shaft.

 

[Old Mitsu Tech]

I agree with Defiant. You're probably in for a major lower end repair.

When you said your foot was off the gas and the rpm kept climbing only a couple of things can cause that. 1 Something left on the engine which got caught in the throttle cable or pulley assembly. 2 The cruise control has decided to engage by itself. I've never seen this on a Mitsu but GM had a problem with this years ago.

Repair the engine and find the source of the uncontrolled acceleration.

Good Luck

 

[Defiant]

I agree with Defiant. You're probably in for a major lower end repair.

When you said your foot was off the gas and the rpm kept climbing only a couple of things can cause that. 1 Something left on the engine which got caught in the throttle cable or pulley assembly. 2 The cruise control has decided to engage by itself. I've never seen this on a Mitsu but GM had a problem with this years ago.

Repair the engine and find the source of the uncontrolled acceleration.

Good Luck

I quickly try to figure out whats wrong and see that my damn floor mat had held the pedal in place.

 

[Old Mitsu Tech]

I agree

 

[1993eclipseGS]

Is the sound coming from the engine, Or the transmission? Is the 2g motor that weak that it cant handle the rev limiter for 3 seconds? I asked about the noise just incase it was the throw out bearing..

 

[Old Mitsu Tech]

Very few engines can handle a sustained extreme rpm/no load. If I had to pick one engine to trust for a high power application, the 4g63 is as good a bet as there is. You can get more horsepower for less with these than anything else I can think of. I speculate that very few engines can handle 600 crank hp and survive on a regular basis as these do. And that is stock. Even Dragster engines will blow if something lets go and rpm goes unchecked. Albiet, the 6 bolt is preferred over the 7 bolt, it's still a darn good engine. You, unfortunately didn't check the rpm in time. Unless you are running dsm link, or some stand alone, you have no rev limiter. These will go till they blow unless shut down.

You can install dsm link, aem ems, or whatever and set the rev limiter to what ever you prefer. This would help. I mean help. It's no guarantee that it will never happen again. Just be careful and when you rebuild, do all the upgrades that have been suggested in here and you will be ok. Happens to all of us at one time or another.

Good Luck

 

[1LE]

Very few engines can handle a sustained extreme rpm/no load.
<snip>
You, unfortunately didn't check the rpm in time. Unless you are running dsm link, or some stand alone, you have no rev limiter. These will go till they blow unless shut down.k

I find it hard to believe that 2g NT's don't have a rev limiter. My friend's old '90 GS did for sure. It engaged at exactly 7000 indicated RPMs. Turbo 2g's have them for sure as well. The tach may not be calibrated exactly right, they can be off a few hundred rpms at the top end, so he may not have actually been over redline.

Sounds pretty much like bad luck, it shouldn't blow up under those circumstances. The rev limiter is there to protect you (actually, the company from warranty claims). It's not unusual for the engine to actually be safer for another 500-1000 rpms as the *usual* limit is the accessories and not the engine internals (unless we're talking stock C4 Corvette motors, bump those up even 200 rpms and you're begging for major engine failure) Engine was probably on its way out already and it just hastened it. I've bounced my 5S-FE powered car off the limiter quite a few times at no load just for the fun of it. No damage...

 

[rs-t eclipse]

2g n/t do have rev limiters there set at 7200rpms. i doubt its was the one rev that did this. sounds like the engine has alot of miles and abuse. to have this miss it up. that quick

 

[Eclipse_GS]

hey guys, thanks for the responses. My mechanic seems to think that its the clutch. When I bought the car around 1 year and 8 months ago he said that the 1st thing to go on the car would be the clutch. I'm back at college but the car is going to be looked at this week. As far as the engine having lots of miles and abuse, all I know is that it does have alot of miles (125,000), but since I have been driving it I haven't pushed it all that much, and this is the 1st time its been reved this high. Well thanks for the help, Ill post again when I know what happened.

 

[ELC 4g63]

its not your clutch... your clutch slave cylinder went out and it blew up your throw out bearings to pieces. youll need to go to mitsubishi motors and get a new slave cylinder and a new throw out bearing

 

[1993eclipseGS]

I had mentioned to check the throw-out bearing in my post, Just in case it was a transmission problem, But everyone ignores my posts. Goodluck, Either way.

 

[eldiabloz13]

I'm in mass also man. What part are you in. Also like someone said before is the noise in your tranny or engine.

 

[Eclipse_GS]

Well I got off the phone with my mechanic today. I guess it was the clutch after all. He is going to fix it, and some other stuff. My family has known this mechanic for 20 years so we trust him. Its going to cost $900 to fix everything. Oh well, s*** happens. He also mentioned that I should sell the car after I get everything fixed on it and get the most money I can out of it. I don't know exactly what I'm going to do yet but if I do sell it I will almost certainly end up with another DSM. Once again, thanks for the help guys.

 

[Spyderman7]

Hope it's just the clutch.Good luck

 

[Sotarts]

You guess it was the clutch? Or was it just the throwout bearing? I have a similar problem with my throwout bearing, because I used a cheap ass bearing that came with the clutch kit. Make sure you use a Mitsu throwout bearing.

 

[Eclipse_GS]

Ok so this whole ordeal isn't over yet. I get a call from my father today and he is at the mechanics picking up my car. They replaced the clutch and now the master and slave cylinder need to be replaced. This is getting expensive.... I'm guessing that after this whole thing is taken care of I am going to sell the car. All because of a floor mat....

 

[95TalonTSiDude]

Ok so this whole ordeal isn't over yet. I get a call from my father today and he is at the mechanics picking up my car. They replaced the clutch and now the master and slave cylinder need to be replaced. This is getting expensive.... I'm guessing that after this whole thing is taken care of I am going to sell the car. All because of a floor mat....

Awww, damn dude. A moment of silence folks. Oh, I would kill the crap out of that mat, first. POS of a floor mat. I hope you get another DSM. Good luck.