my eclipse gst is slow and smokes after you dump the boost

5

Asked by May 20, 2012 at 07:29 PM about the 1999 Mitsubishi Eclipse GS-T Turbo

Question type: Maintenance & Repair

it takes 24 secs to get to 60 its smoking after boost and some times in periods of maintained low
boost it shifts hard has no power the trans guy said its not  the tranny at all its an automatic i had it in
the shop for aweek and they said they couldnt find anything wrong they didnt understand why it wasnt
running good oh and it get horrible mpgs like 8

4 Answers

195

have u tried a boost leak test and maybe ur misfiring

1 people found this helpful.
195

sounds like u have a bad seal in ur turbo or bad valve seals on ur head check for play on the turbo if it stock it should be t25

2 people found this helpful.
565

Could be anything i'm putting my money on either the turbo or an oil leak. Its possible that oil is leaking into the chambers of the spark plug wells due to bad sealing which will cause undetectable misfires, smoking and a good deal of lag. Might be the reason. Check along each components starting at the intake and go along every line in the system. The key is observation. Check for any cuts, leaks or problems in any piping or tubing. If you can't detect anything turn the car on and recheck it again. I helped a friend find a problem simply by doing this and found a nice gash in his radiator hose.

105

im gonna go ahead and say you have a bad turbo. the seals are probably bad

1 people found this helpful.

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