Question about 1995 Mitsubishi Eclipse

2 Answers

The car is a 2000 eclipse gt 3 liter the only mod in this engine compartment is a cold air intake. 129,xxx miles Let me start from the beginning. My harmonic balancer shattered into pieces. During the replacement the gear driving the timing belt came out. Since the timing belt has not been replaced since ownership I decided to replace it along with the water pump. After setting all the timing marks, everything was reassembled. The engine started on the first try, the fallowing day, car was taken for about an 8 mile test drive. During the ride the engine started over heated for some reason. I stopped and waited for it to cool down and tried to get home, just prior to making it home the top of the radiator blew out. Apparently the radiator cap was malfunctioning. After that I purchased a new radiator and cap. Then I replaced the old radiator/cap with the new ones. During this process I decided to clean the engine bay to rid of all the grease and grime. I used engine cleaner and sprayed it off with water. After installation I blew remained water with compressed air from all components. Then I started engine and it started up without a problem on first try. It ran for several minutes, when all of a sudden it shut off. This has been the last time the engine has run. I have checked the spark/spark plugs which seem to be running fine. I checked fuel pump relays and engine fuses. Also I made sure the fuel pump is pumping the fuel to the engine. Everything seems fine. I tried to spray starting fluid into intake while cranking engine yet nothing happened. I have no idea what to try next or what could possibly have caused this problem. Please give some advice since this car is a daily driver thank you.

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  • partymarko Jun 01, 2010

    Hi
    I'm still looking for solution to my problem
    If ECU is the reason I can't get my engine to run, can I test it somehow?
    Thank You for your help
    Mark

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2 Answers

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First of all you never spray a electrical component with water. Now there is no way to know what sensor shorted or whether or not it shorted out the computer also. What you need now is a data scanner in order to see if any codes were set and to see what data is skewed or missing alltogether. As far as why the hormonic balancer fell aprt I would suspect something stopped the belt from turning and the seperator rubber on the balancer gave out,, or it just failed for no reason which does happen.

As far as overheating its possible you have a head gasket issue.

Hopefully it was just the cap but what came first. The chicken or the egg.

Did it overheat then blow the cap or did the cap release water and then it over heated. This is important in diagnosing a overheat issue. You could do a leak down compression test to see if you have a head gasket issue if you have the tool.

Either way your going to have to deal with the no start issue first and without a data scanner there is amost no way to tell whats going on without guessing. You could test each sensor individually if you know how.

If you want to diagnose this go to mitchell1diy online and pay the ten bucks. It will give you everything you need except the tools.

Posted on Jun 01, 2010

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This is a pretty common occurence when someone washes there engine. Most of the time the problem is the ignition/ start relay that has got condensation in it and needs to be replaced. This is a easy fix and the part is not to expensive. You can test it with a volt meter. If the relay checks out just fine then you will need to go to your ECU and replace that which is a bigger expense and will cost more money yet you are able to still do it yourself. Another piece of advise, if you are going to try and wash your engine it is highly recommended that you take it to a professional and let them do it. I know that it cost some money, but it will save you from having these problems in the long run.

Posted on May 30, 2010

  • 2 more comments 
  • partymarko May 30, 2010

    The relay was already tested with a volt meter, and it tested out fine. As far as the ecu wouldnt there not be a spark if it needed to be replaced?

  • Jeremy Reddick
    Jeremy Reddick May 30, 2010

    On the Mitsubishi the if the ECU was bad you would still get a spark.

  • partymarko May 30, 2010

    So why does it not run if there is still a spark and fuel?

  • partymarko May 30, 2010

    Also can it be tested some how?

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