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dead in the water. wiring, timing belt? 200 85

Okay, I did say that I would post here if I wanted answers. I am through venting on opinions, now I need to get my car fixed.

Last spring I had the blower motor replaced on my '85 245 wagon. I didn't drive until about 10 days ago as I also have a 122 and 544 that are driven in the good weather.

When I started the 245 up for it's winter stint, it popped over and ran like I had only left it sitting for a week. I soon discovered that the power door locks were not working correctly; they would pop down slightly and lock the doors when I would just close the door. Also, the headlamp reminder chime didn't work. I ascribed it to the blower motor replacement and called the guy wh installed the blower motor, assuming that perhaps that there were some wiring issues.

Last week I was out and about. The car started just fine that morning; no abnormal engine sounds, ect. I drove it to work, and to a couple of other places. The last place it wouldn't start. It sounds like it would if it was out of gas, and no, that's not the problem.

I am soliciting opinions, suggestions, ect. I don't do my own work of this type on my car, so I have to rely on the kindness of a good, honest mechanic who comes to my house and does home service on my 245. I have speculated that it could be

wiring problem

fuel pump relay

could it be a timing belt? (155K on car; I've never had one go so I don't know.)

Fuel pump crapped out

I know it is a lot of things that could be going on. I am self-employed and have to have a car for work with my peculair types of jobs. Presently I am driving a VERY CLEAN 122 wagon through road salt city in desperation here, and obviously if I can do anything to change the situation I will.

Thanks








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    Re: dead in the water. wiring, timing belt? 200 85

    Since I don't know your exact current status let's do the basics:

    1) Timing belt there, but: got spark? Use a plug wire, rag or clamp and old plug, etc to see if spark jumps 1/16" or so. (avoid 50,000 Volts if possible) If you got spark...good, see below...if not get back with me.

    2) Got fuel to the fuel rail/injectors? Partially disconnect and wrap with rags and have a friend crank car. You'll know really quick if fuel is there. Don't smoke cigars. Avoid a big engine fire.

    Basics...if these things are OK, then we'll start the rocket science.








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    Re: dead in the water. wiring, timing belt? 200 85

    this sounds like a corroded fuse. (I think the 85's still used the bullet type fuses). Take out all the fuses, use fine sandpaper, clean the ends and the brackets they fit into, coat the ends of the fuses with silicon (lightly!!) and replace. I had an 82 and this became so common that I left off the fuse cover so I could rotate the fuel pump fuse when the car would not start.








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    Re: dead in the water. wiring, timing belt? 200 85

    Cynthia --

    It could be a broken timing belt — the recommended (strongly recommended) replacement interval is every 50,000 miles.

    Remove the oil cap and watch the camshaft as a helper turns the key 'n cranks the engine. If the belt's broken, the cam won't turn.

    It could be a defective fuel pump relay — it's a very common problem, and easy to fix by resoldering the existing relay (OD relay, too). It costs $0, takes 15 minutes, and incurs very low risk. Of course, you must be able to solder.

    It could also be an ignition problem, which would interfere with the spark. And this will inhibit the fuel pump relay from driving the fuel pump. Fo safety reasons, the relay requires ignition pulses before "pulling in," powering the pumps.

    It could also be the big 25-amp fuse under the hood, adjacent to the hi-low relay. This fuse powers the FI system, and is well-known for corroding.

    It could also be bad injector grounds.

    It could be a failed air mass meter (AMM). Your car's not a turbo, right? (You can always try the "limp home mode.")

    It could also be the result of the well-known and common crumbling engine harness.

    It could also be a defective sensor inside the distributor.

    And it could be many other flaky things.

    It's less likely to be a bad fuel pump. While these do fail, they don't often fail.



    Don Foster (near Cape Cod, MA)








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      Re: dead in the water. wiring, timing belt? 200 85

      Thanks for your helpful hints. I went right out and had someone crank the ignition over, and thankfully it is not the timing belt; hopefully I can get this resolved soon.

      Thanks so much!








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        Re: dead in the water. wiring, timing belt? 200 85

        If it does turn out to be the wiring harness, there is one on Ebay right now that will save you a lot of money over a replacement if you aren't able to do a repair. See Item #502878025.

        Good luck.








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        Re: dead in the water. wiring, timing belt? 200 85

        You have the correct year for a bad wiring harness. Check the wires at the ground points at the intake manifold. Check the wire clipped onto a small sensor under the intake manifold runner to cyl 1 and 2. If the insulation is crumbling, this might be your problem. My 744 had a bad harness but would still run, how I don't know. The harness can be rewired, but the old one must come off first, all the wires replaced with the correct size wires and reinstalled. New ones are expensive and available ffrom IPD. let us know.








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        Re: dead in the water. wiring, timing belt? 200 85

        "...thankfully it is not the timing belt..."

        Well, maybe thankfully, but maybe not. In some ways it would be better to find the problem and know exactly how to get your engine running again. In your car—other than stopping the engine—a broken timing belt does no harm. And repairing it is not rocket science.



        Don Foster (near Cape Cod, MA)








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    Re: dead in the water. wiring, timing belt? 200 85

    Have you pulled the TB cover to inspect the belt? It might also be that the Fuel pump relay needs resoldering. Alot of people on the list seem to do that first when they have fuel pump problems. Have you cleaned the Battery leads? I would also inspect the fuses. Sitting for all that time you might have a little bit of corrosion on them. I would think that the work done on it would have effected it right away if a wire was crimped from the Blower motor install. I hope that helps.

    I was just kidding about the 66 vw...I used to have one years ago. I quess you couldn't fit an acetolyne tank in that. What a classic. 1300cc engine with rear pop out vent windows. Now it is probably someones bicycle or something(it was totalled by a little old lady running a light.)








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      Re: dead in the water. wiring, timing belt? 200 85


      Thanks for your input! Tried to obvious stuff to the fuse box. Not that.








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        Re: dead in the water. wiring, timing belt? 200 85

        Cynthia,

        Make sure you check the fuse in the engine compartment. Its right near

        the battery on the relay panel just behind. This fuse is for the fuel

        and ignition and if its corroded your engine will crank but never start.

        Make sure you actually pull this fuse out to look at it. You can't tell

        if its blown.

        Dave 82 242ti







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