Question about 1999 Volkswagen Jetta

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Distributor dry - but when it rains it stalls. Could it be the Coil Wire or any other under the hood ignition problems?

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If the vehicle has the original coil in it when it gets wet the coil allows arching and will make the coil go bad, dont ask for any help from the dealerships changed mine 3 times, wont ever buy another vw, it also could just be an open connection or wire though

Posted on Apr 28, 2010

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Could be an open coil or open wire

Posted on Sep 24, 2009

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Start the car, raise the hood and spray some water on the ignition coil, if it stalls, you need a new one. Spray the wires too, you will know when you find a bad wire or coil, you can hear it sparking and if it's dark enough you can see the sparks.
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Car is not starting when damp


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Stalling


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1 Answer

1992 ford aerostar van wont start after it rains


I just had this exact problem. Wouldn't start or took 15 trys to start, but then ran smoothly. Sometimes a little rough starting on dry days, but pretty much hard starting after rain. I was thinking water in my tank/bad gas, but shooting some starter fluid in my intake didn't give me the initial blast at start up... that certainly indicated that it was electrical...
...but the next day the vehicle stalled in the middle lane of a three lane street, wouldn't restart. After pushing it to the curb, I got to the point where I was checking the wire from the coil to the distributor cap. Two thirds of the wire lifted right out. This wire was in 2 pieces! Amazing that it had been running at all, with this one wire burned down to a whisper, before it broke completely. There were signs of heat/elec damage to the wire also at a point an inch away on this wire.
Replacing the wires is absolutely the first thing to try. It's cheap and easy to do, and it should be done (or the wires inspected/tested) routinely anyway. The coil-to-distributor coil gets more engine heat and more use than any of the indiv spark plug wires and hence wears much faster.
I am betting this wire is much more likely your problem than a coil failure. Good Luck!

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2 Answers

Rough running after rain


It sounds as thou you have moisture in your distributor.Pull the distributor cap off and let the car sit and dry out for a couple of days and see if that fixes the problem.

Sep 30, 2008 | 1994 Volvo 850

6 Answers

1997 vw jetta stalling when raining


The problem in the Jetta could very well be with the ignition coil. I had the same problem for a long time and tried the usual replacing plugs, wires, etc, but nothing seemed to work.

It ended up being the ignition coil which over time, managed to sustain very small cracks. Even a small amount of moisture would cause all sorts of problems.

I replaced the ignition coil and had no problems after that.

Sep 09, 2008 | 1997 Volkswagen Jetta

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