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Should I fix this car??? 700

posted by  therouer on  Thu May 20 14:05 CST 2004
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Hi everyone!

I've got a 1990 745 Turbo with 341,000kms on it. It needs some work: new windshield, center bearing, my AC doesn't work and my turbo doesn't produce any boost. I brought my car to the dealership because it wouldn't start anymore. They've diagnosed it to a bad relay and an ECU that's finished. Up to this point my gas concumption has been terrible (averaging 20 litres/100 km). Would changing the ECU help my gas mileage? Should I just move on to another Volvo? BTW: The dealership found a good used ECU that they could install in the car witch would cost me (including the relay and the software update) 600$.

THanks for your advice!

--
Eric... 1990 745 Turbo 340,000 Kms








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    Should I fix this car??? 700

    posted by  therouer on  Fri May 21 03:46 CST 2004
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    I've went ahead and had the ECU replaced. The other Volvos in the area that are currently for sale are around 4000$ and not necesseraly in better shape. I guess it falls into the category of better the devil you know. Especialy since I don't generaly rely on myself to do the work (I just choose when I have things done and when I do it myself)
    I talked to the parts guys and they mentionned that the ECU was very corroded like water went into it??? Is there any way this could've happened? Or was the ECU probably replaced with a "not perfect" used one?

    Has always, thanks for everyone's help!
    --
    Eric... 1990 745 Turbo 340,000 Kms








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      Should I fix this car??? 700

      posted by  VolvoSteel on  Fri May 21 11:27 CST 2004
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      last visit: Sun Mar 23 21:28 CST 2014
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      It's easily possible, i had this happent to me, the mechanic diagnosed the problem's i was having as water getting into the ECU now granted this wasnt my issue in the end but had it continued it would have been another issue, anyways what happens is the boot the wires go through on the passenger side door becomes disloged or just breaks up due to age this is turn let's water come in as it streams down the side of the car and drip in, at which point it drip's directly on top of the ECU, i found and easy cheap fix for this, i went out and purchased some high temp silicon, high temp low temp doesnt matter, i filled the hole on the inside completly with the silicone which in turn sealed the wires and everything around this, i used silicone as it would still give movement to the wires but continue to hold a seal.








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    Should I fix this car??? 700

    posted by  Chris Mullet on  Fri May 21 01:40 CST 2004
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    last visit: Fri Oct 24 09:08 CST 2014
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    You can buy the same car with half the miles (or less) for around $2000.

    You're looking at that much money just for the repairs you mention. You might actually be better off with a non-turbo, especially if you are dependent upon mechanics to keep it running.

    There's 2 more cents worth.








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    Should I fix this car??? 700

    posted by  VolvoSteel on  Thu May 20 17:51 CST 2004
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    last visit: Sun Mar 23 21:28 CST 2014
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    Really you have to decide at this point, to start putting money into it or just bail all together, the ECU's used normally run around $300 and its a do it youself type thing really easy to install. center support bearing its a pain in the ass to do yourself though its not cheap to have someone do it either. you should get a full inspection done of the car then take what you get from that and make a decison to either stick it out or bail.








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    Should I fix this car??? 700

    posted by  someone claiming to be Mike Gambone on  Thu May 20 14:43 CST 2004 [RELATED]

    I wouldn't bite on the ECU, they don't seem to go bad that often. If it runs with the new fuel injection relay, I'd exit. If you don't feel like playing with it, I'd recommend moving on to a newer vehicle. Just my 2 cents worth.







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