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93 245 will not start after rain.
It used to have a cracked windshield and I had a new one put in last October. We haven’t got any significant rain until this past Friday. It always start at the first crank. All of a sudden, the wife called and telling me that it first died a couple times at red light and re-starts o.k. Also, on the morning it took her quite a few cranks to get it started. Two days later (still raining), I finally got some time to look at it. Here is what I found:
1. with the key tuning, there is good sparks with the plugs out.
2. all plugs look good, however dry even after a few minutes of cranking – no fuel injected?
3. Fuel pump hums with the key first put in position II. Since this car does not have a fuel pressure test port as my other two cars, I can only look at the spill as the fitting is being loosened. It looks like there is good pressure.
4. Further investigation revealed a puddle of water at the far corner of the driver’s footwell (maybe two cups). It’s good that the rain was still on so I can trace the leak all the way back to the lower left corner of the windshield. The water must have run through the fuse panel and into the floor pan. I took all the fuses out, used a good heatgun to dry it and cleaned out all the rust on the fuses and the fuse holder with a wire brush. It still won’t start.
What other electrical components in that area that might be affected by the water assuming the leaky windshield is the cause? One more thing I’m going to test when I get a chance today is power supply to the injectors and the cycling of the ECU on the injectors (with a multimeter?). Since the spark plugs are dry and no strong smell of fuel at the tail pipe, I’m kind of suspecting the injectors. My guess would be something electrical in the fuel injection system got affected by the water. Thanks for reading. Erwin
The glass guy will call to look at the leaky windshield he put on.
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