Date: 6 Aug 2001 07:46:46 -0700 From: pauljohnsonnopsamhome.net (Paul Johnson) Subject: Re: Help! - 1985 900s electrical/fuel problem
I have an 1985 900, with about 270K miles. I bought it in pieces, installed spare engine, transmission, have everything running pretty good, including converting AC to R185 coolant. In the process, I replaced nearly all the wiring in the engine compartment, as the insulation was deteriorating in many places (turning to putty). Could you shed a little more light on the 'biodegradable harness' issue in 1985's?? Paul Johnson Pauljohnsonnopsamhome.net > You have a 1985 model. These particular models of Volvo and Saab MAY have > wiring insulation which degrades and causes shorts. Another possibility is > that the catalytic converter heat shield has rusted through exposing the > main wire bundle insulation to excess heat which partially melt the harness > insulation. > > I would guess that your mechanic is doing the best that he can, but is > solving the symptoms instead of curing the problem. Unfortunately, the > problem MAY cost more to have it fixed than it is worth to you. It sounds > like you do not do much of your own work and this car could continue to be a > financial drain. If you do your own work, I would suggest looking at the > electrical wire bundle and the heat shield. If it is degraded, get a harness > from an '86-'88 and replace it. I am sure that this would be prohibitive to > 'have it done', though. I would suggest getting a newer model C900. The > biodegradable harness was a '85 only deal and the other year to avoid is > 1989 as the Fuel injection ECU can be flaky. If it is replaced by a > remanufactured unit or one from a later model, it is fine, though. > > Good luck. > > "Matt Grammes" <grammo101nopsamail.com> wrote in message > news:b502b770.0108030531.2d98780nopsaming.google.com... > > I have owned my 900s for about 4 years now and havent had any major > > problems with it, until this summer. Once after work i tried to get > > in my car and the battery was completely dead. After a successful > > jump it was running again for about 2 weeks then the same thing > > happened, so we tried jumping it again, only this time it didnt work - > > there must have been an error in the way the wires were connected, but > > it never worked - got it towed to a mechanic. After some diagnosis he > > tells me that a whole bunch of stuff was burned out... the fuel pump, > > fuel relay, ECM module etc... so after all this stuff is replaced the > > car runs great again. Only a few days later after driving somewhere i > > goto start up the car adn it never turns over, so i looked at the fuel > > pump and its not working. have it towed back to mechanic who says > > thet the ECM module he put in was faulty so he changes that and it > > works great again. 2 weeks later i stop for gas and try to start up, > > and again it never starts... sounds like the same thing to me, but he > > goes and somehow gets it started and drives it back to his shop where > > it does the same thing AGAIN... he told me the next day that he > > cleaned some electrical connections up and it was working but then > > later on it was doing the same thing.. I dont know what to make of > > this or if i should just ask for my money back and get rid of the damn > > car... any suggestions, help??? > > > > -Matt > > -MGrammesnopsamrsky.com
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