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I've replaced my turbo and its still having problems!!!

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kevingmorales

Probationary Member
19
0
Aug 10, 2006
Humble westfield, Texas
Hello, i have a gst turbo 95,and i have a t25 on my car, and i've been having problems with my car, its blowing smoke out of the exhaust and i think i have exhaust leak, ### i see smoke coming out around the exhaust manifold on a count of i have 2 broken studs flushed in the head, ive recently been told in mitsubishi that the smoke could be cause by worn valve seal stems or somthing like that, and after they replaced the seals, they told me it could be the turbo,well its a 150000 mile car and the person that had the car before me didn't do any tune ups to the car so i have his problem now, so i've finally installed a 15000 mile turbo on my car and i took it around the block, it didn't spool all the way and i smoking worse the a freaking chimeny, i've done everything that the dealer told me and had help on dsmtalk,dsmtuners,and htown-dsm and no luck can you guys tell me the probable cause of the nightmare?

Sorry about the essay!
 
What color is the smoke?

White - water
Blue - I have read is turbo
Black - you are running rich
 
I cant tell if its blue or white, and it smokes a little during idle and its smokes a little bit under acceleration and when i shifted i saw a big cloud of smoke in my mirror and when i opened my hood and reved it i also saw smoke leaking around my exhaust manifol and it was white smoke coming around the exhaust manifold.
 
Check your coolant and oil levels are either down at all would point to where the smoke is coming from. I would venture a guess into the realm of head gasket though. I would do a compression check. If that comes up clean a leak down test. But white smoke means coolant is burning somewhere.
 
I bought this used turbo and i checked for shaft play and it didnt had any, and the person that sold me that turbo is a high rate seller and trader.
 
I've changed the coolant today and the oil level also there is no water leaks or oil leaks neither. I had a compression test by a mechanic shop when my car was smoking before, and he said the compression was good and high. If i took it to the dealer for a leakdown test do you know how much would they charge me with? And any other ideas? the dude that check my car while it was smoking said i needed a new motor, and i think he just wanted to make money on that deal.
 
Are you positive that replacement T25 was in good working order??? Have you checked for shaft play. It's not unheard of for someone to replace their crapped T25 with another crapped T25. Ask MountainDew... he had the same problem. Read all about it here: http://www.dsmtuners.com/forums/showthread.php?t=271693&highlight=nightmare

I read every single thing thanks, see the thing is, im still a newbie and im not familiar with alots of things, thats why its so hard for me, and besides this is my first car.
 
I bought this used turbo and i checked for shaft play and it didnt had any, and the person that sold me that turbo is a high rate seller and trader.

That doesn't mean anything. The turbo could've been going out when you bought it.... I've said it before and I'll say it again: Do yourself a favor and take the intake off and check for shaft play. You shouldn't have any... ANY, in and out play. Do that tell me what you find out.

Also, when you said in your OP that you had $atan replace your seals, did they do all the valve seals? Just the exhaust? Did they replace the guide seals too or just the valve seals?
If you had a shop do a leakdown test when it was smoking before and it came back good, then your seals probably weren't the problem.
 
That doesn't mean anything. The turbo could've been going out when you bought it.... I've said it before and I'll say it again: Do yourself a favor and take the intake off and check for shaft play. You shouldn't have any... ANY, in and out play. Do that tell me what you find out.

Also, when you said in your OP that you had $atan replace your seals, did they do all the valve seals? Just the exhaust? Did they replace the guide seals too or just the valve seals?
If you had a shop do a leakdown test when it was smoking before and it came back good, then your seals probably weren't the problem.

They did the valve stem seals all of them, im no mechanic,i missplaced the paper work ,they changed only the valve seals,the only thing i know is that they charge me 1800 for that crap only and thats a rip off, but still my car is running like crap.And the person that sold me the turbo, its a super close friend and he wouldn't play me like that,and the turbo do not have any shaft play at all.
 
WOW!! $1800... you got reamed! If all of your statements are true, meaning there's absolutely no shaft play, and that all your valve seals have been replaced... the only thing else that I could think of would be the valve GUIDE seals. But I highly doubt it since you said they replaced your seals. Usually even if the guide seals are shot, by replacing the valve seals it'll provide a 'quick fix' effect, but your claiming that there's no difference at all after spending... dare i say it... $1800. OUCH.

I'm still leaning towards your turbo being shot and just because...
And the person that sold me the turbo, its a super close friend and he wouldn't play me like that
...doesn't mean that he knew it was going out. Like I said, it happens.

Also I'm curious, your profile says that your from Texas, but that your region is the Pacific NW, which is true? If you are from the NW, then I can recommend a good shop that A) Won't screw you, and B) Will most likely be able to fix your problem the first time.
 
Alright i got a question, where do you recomend me to take my car, and not get reemed like mitsubshi did to me?
 
while your in the head again i would replace as much as i could. including another timing belt water pump job if it wasnt done with you 1800 dollar steam seal replacement. for that kinda $ you can build yourself a nice head. i got my stem seals for like 50$, an ebay kit with +1mm SS valves, bronze guides, and revised lifters for like $300 i think. then $100 or so for all your gaskets. and well where im form i got the valves seated and the head machined with a very mild port job for like $120. the mechanic i took it too only charged me $200 to remove and install the entire head.
 
while your in the head again i would replace as much as i could. including another timing belt water pump job if it wasnt done with you 1800 dollar steam seal replacement. for that kinda $ you can build yourself a nice head. i got my stem seals for like 50$, an ebay kit with +1mm SS valves, bronze guides, and revised lifters for like $300 i think. then $100 or so for all your gaskets. and well where im form i got the valves seated and the head machined with a very mild port job for like $120. the mechanic i took it too only charged me $200 to remove and install the entire head.

Well the timing belt has been changed and the water pump also, and i dont have money right this instant, i need to know what kindda problems could be causing this disaster,any other ideas?
 
It’s the valve stem seals, do this coast down a hill off the gas but in gear creating a lot of vacuum, then at the bottom of the hill give it gas then look behind ya (007). If you think it’s the rings do a leak down test and that will let ya know. It’s not the turbo if he is seeing smoke around the exhaust manifold where it bolts up to the head. The vacuum will pull the oil from the top of the head past the seals it will smoke a little bit at idle (vacuum) like at a stop light but then as soon ass the rpms come up all the oil that collects will burn and then you see that 007 cloud. Did a mitsu dealer do the valve seal job? Or was it some one else, because the only valve seals to use are the oem mitsu ones. Learned the hard way the first time about eight years ago.
 
It’s the valve stem seals, do this coast down a hill off the gas but in gear creating a lot of vacuum, then at the bottom of the hill give it gas then look behind ya (007). If you think it’s the rings do a leak down test and that will let ya know. It’s not the turbo if he is seeing smoke around the exhaust manifold where it bolts up to the head. The vacuum will pull the oil from the top of the head past the seals it will smoke a little bit at idle (vacuum) like at a stop light but then as soon ass the rpms come up all the oil that collects will burn and then you see that 007 cloud. Did a mitsu dealer do the valve seal job? Or was it some one else, because the only valve seals to use are the oem mitsu ones. Learned the hard way the first time about eight years ago.

He's already stated that he's done a leakdown test and that it checked out fine. He's stated he replaced all the intake/exhaust valve seals. He's stated that he's got a perfectly working, new turbo. The only thing that he hasn't replaced is his guide seals. So, one of 2 things is wrong. Either his valve guide seals are completely gone, or one of the things that he replaced is still broken, or wasn't installed correctly.

My vote is for the turbo (like what most people on here are suggesting), but according him he's 110% positive that his turbo is working perfectly. And why shouldn't it be... apparently it's a T25 with only 15,000 miles on it (everyone knows that those turbo's are bullet proof until like 100,000 miles). :shhh:
 
He's already stated that he's done a leakdown test and that it checked out fine. He's stated he replaced all the intake/exhaust valve seals. He's stated that he's got a perfectly working, new turbo. The only thing that he hasn't replaced is his guide seals. So, one of 2 things is wrong. Either his valve guide seals are completely gone, or one of the things that he replaced is still broken, or wasn't installed correctly.

My vote is for the turbo (like what most people on here are suggesting), but according him he's 110% positive that his turbo is working perfectly. And why shouldn't it be... apparently it's a T25 with only 15,000 miles on it (everyone knows that those turbo's are bullet proof until like 100,000 miles). :shhh:



Like I was saying it's the valve stem seals. I wasn't saying that it's the turbo or the rings just giving him ways to test them to put his mind at ease, that it's the seals. It's not that hard to diagnose. There are tons of threads out there with the exact same signs. Also like I said if he has smoke coming out of the exhaust manifold where the mani meets the head, its not the turbo. I highly dought its the guides. Little scratch on the valve stem will tear up a valve seal in no time or if the shop wasn't mitsu that replaced the seals the first time they prob used napa or some shitty aftermarket seals which will not hold up very long trust me I have done the seals before! Just pull the exhaust manifold off and look into the exhaust runners for signs of oil in the combustion.
 
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Like I was saying it's the valve stem seals you (jack ass). I wasn't saying that it's the turbo or the rings just giving him ways to test them to put his mind at ease, that it's the seals. It's not that hard to diagnose. There are tons of threads out there with the exact same signs. Also like I said if he has smoke coming out of the exhaust manifold where the mani meets the head its not the ####ing turbo. I highly dought its the guides. Little scratch on the valve stem will tear up a valve seal in no time or if the shop wasn't mitsu that replaced the seals the first time they prob used napa or some shitty aftermarket seals which will not hold up very long trust me I have done the seals before! Just pull the exhaust manifold off and look into the exhaust runners for signs of oil in the combustion.

Whoa, whoa, whoa... calm down. I was agreeing with you and at the same time putting in my 2 cents.... my last post wasn't directed towards you. The point of it was that the OP'r has already been suggested everything under the sun for his diagnosis, but is claiming that that's not the problem. The OP'r has basically said that it's impossible for the cause to be valve seals because he just changed them; that it's impossible for it to be the rings, because his leakdown test came back perfect; that it's impossible for it to be the turbo because he just replaced it with a perfectly good one with only 15,000 miles on it and that it isn't possible his friend sold him one that was already going out. That only leaves one other thing... the guide seals (which, like you, i HIGHLY DOUBT is the reason... as I stated earlier). So, unless the OP'r would like to start listening to our advice, and realize that just because you've checked/fixed something once doesn't mean it's fixed,it's impossible for us to help him.

I suggested the turbo, because that is most likely the case with the amount of smoke that's reported to have been coming out. It's still possible that smoke from a blown turbo can exit via the exhaust manifold. Smoke rises, and there's nothing keeping the smoke from rising back up and exiting the manifold if the manifold has a leak. It's also possible that valve seal replacement was done improperly, but it's been my expieriance that with that much smoke and under the conditions that it's smoking, it's the turbo. Either way, the OP'r will never figure out the problem if he doesn't start listening to our suggestions.

EDIT: My apologies... he stated that he had a compression test done and it checked out fine... not a leakdown. To the OP: Get a leakdown test done if your positive that it's not your turbo. Just make sure that the shop knows the difference between a leakdown and a compression test, some shops don't. It won't cost you more then 1 hours worth of shop time.
 
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It’s the valve stem seals, do this coast down a hill off the gas but in gear creating a lot of vacuum, then at the bottom of the hill give it gas then look behind ya (007). If you think it’s the rings do a leak down test and that will let ya know. It’s not the turbo if he is seeing smoke around the exhaust manifold where it bolts up to the head. The vacuum will pull the oil from the top of the head past the seals it will smoke a little bit at idle (vacuum) like at a stop light but then as soon ass the rpms come up all the oil that collects will burn and then you see that 007 cloud. Did a mitsu dealer do the valve seal job? Or was it some one else, because the only valve seals to use are the oem mitsu ones. Learned the hard way the first time about eight years ago.


Well the job was performed by mitsubishi and they charged me 1800 for the labor.
 
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