Question about 1992 Subaru Legacy

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Engine will not start - (intermittent fault)

My 1992 Subaru Legacy will after a short run, sometimes refuse to start. The solution sounds crazy but works (so far). Lift the bonnet and wait for three or four minutes and turn the engine over. Normally the engine fires and off we go. The problem is unfortunately becoming more frequent and the waiting period seems to be getting longer. Having yesterday managed to get a sympathetic bystander to turn the engine over I found that there was no spark. My first inclination is to change the spark generator or the ecm coil. When the engine is running there is quite a healthy spark and I wonder if there is any other area which might inhibit the spark when starting.

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First I would check the coil pack for good mounting and test. Then I would check ignitor. If still nothing check crank sensor. If motor is very dirty I would make sure sensor for crank and cam are clean and wires are in good condition. Hope this helps. Good luck and have a good day.

Posted on Feb 02, 2009


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